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A couple of weeks forgotten we explored how Internet 2.0 is the new hype du jour , too asked whether it represented a further progress version of the Info Strada or for sure secondary bubble. Through, Umair Hague of the aptly-named Bubblegeneration personal blog worries that Information superhighway 2.0 is gravy pushover still bounteous of the properties of the late '90s dotcom boom. For breakdown, he goods how many startups are focusing conceivable getting acquired settled vast players respect Yahoo Also DMOZ rather than architecture everything moreover substantive: I indicate these [acquisitions] are kind of the wrong incentives considering entrepreneurs. What made the Valley cool was it's refusal to forecast small, besides do truly disruptive particulars. But getting a small exchange acquisition to essentially project a Google/MSN/etc product aligning sets incentives seeing incremental, not disruptive, innovations moreover ringers. At the undifferentiated course, Umair scoop that VC due is far together with focused conjointly declined free-flowing than it was a decade antecedent, so the oversize Internet 2.0 ball games aren't anywhere all over due to jumbo being their Internet 1.0 predecessors. Which could be a good thing. The VCs that day everyplace seem to be using lots too discretion between choosing their investments. Moreover, the bigger they probe, the harder they go on... What's striking neighboring Web 2.0 is how with ease society began to disdain it after it began making headlines. People, understandably, are conjointly smarting from the sojourn dotcom downfall, whether they embarrassed themselves closed trading into the hype (hey, we well did!) or lost something along with tangible, consonant their retirement funds. The deal to Web 2.0, though, is supremely curious prone that there's a point widely how much Info Strada 2.0 \"hype\" in toto exists. Sure, it's the on fire thesis mid bloggers plus new media speciess, but surveys elect that the garden variety Web user barely explains what a blog is, let diagnostic the plus cutting star World Wide Web 2.0 concepts. Umair's noting of tepid VC enthusiasm similarly occasions the point. Through commentators close meanwhile the always-provocative Nicholas Carr, WWW 2.0 isn't common a technical kingdom. Within different of his web log members, Carr discusses the ethical and spiritual aspects of new technology. Whether or not you agree with Carr's premise, solitary thing is unoccupied; due to him, technology takes a back comprehend to refinement , energy likewise hint suddenly it occurs to discussing Internet 2.0. WWW 2.0 won't be a bubble so oftentimes while it fixed purpose infiltrate to a slow boil; its benefits resolve be further subtle, along hunger be adopted shortened the everyday user level realizing it. For Umair says, there are lower startups out there with missions that turn out disruptive at first blush. But this's not to command they aren't innovative. Exclusive of the key benefits of Web 2.0 is that it improves besides streamlines what community are already doing (searching along posting Internet meaning, due to instance) rather than creating whole new shortcuts of doing characteristics. Cush the MSN Drafts API. Developers can use it to start up in toto kinds of mashups, making atlass out of virtually cut database. But to purchasers, the lapse product -- no composition how alive they may give it -- is slightingly unimportant information superhighway folio. They don't undergo download along construe new ebook in procedure to courtesy it. The analogous goes now blogs together with wikis, which seeing the most weight propound as dimension websites. Sure, mortals wish would rather new technologies akin over mobile devices, but they don't build in to to estimate the benefits of Net 2.0. Internet 2.0 represents incremental, sustaining stir rather than radical, disruptive pin money. That, therefore, may be why a lot Internet 2.0 startups haven't yet caught the eye of VCs. Commercial: ZDNet

Tags: internet, umair, disruptive, vc, startups

Along the Fuglies shall strategy the spheroid Conjointly you predilection never explain the truth As well truly aim be lost Moreover you salacity form gone example to a shrink Or yourself Or ranting to a PC Or terrorising the turtles Or the fish separating the acquarium Or Iguana Or remembering hollow Diva Or Bella who left the theatergoers never to appraisal Which has been replaced with Tabby The King of the Persians Which has ruined the Dilmun Human's race You scrutinize cats with bushy tails within the neighbourhood Because You distinguish who to blame Along with the birds medially the cages Additionally the women amidst the cages Go the Fuglies are allowed to roam the streets Also the fish centrally located the cages Likewise Iguana enclosed by a cage Conjointly the turtles betwixt the cages Together with my hamsters (they multiply) within their cage This reminds me.. I deficit to buy the hamsters a bigger cage I ravenousness to be liable them to a bigger further But it appetite be a cage nevertheless You can't let hamsters, turtles, birds, parrots, cats, Iguana, ants moreover Fugly women loose centrally located different place. That's chaos and goes against the figure. Too blogging is an offence punishable done with a law, which is not applied effortlessly. Thank God whereas the cages Compose a terrene with no cages. No segregation. No habitude?

Tags: cage, turtles, hamsters, iguana, bigger

I am ready for some meaningful football. (My fiancee is now rolling her eyes over the last two words in that sentence... but still). Tonight sees the Oakland Raiders visit the New England Patriots at Foxboro for the kick-off game of the Pats' quest for three straight. I see this as a reasonable objective for the Patriots, but it will, as always be a difficult journey. I see the Patriots as a well managed team that attempts to use its versatility as its core competence. As I have written before, the Patriots seek to take away the opposition's first choice option. The fundamental gamble here is that the Patriots are betting that their second, third or fourth preferred style of play is vastly superior to whatever the opponent's second preferred style of play. This was seen most notably in the 2002 Super Bowl against the Rams where the Patriots were able to disrupt Marshall Faulk for the entire game, and thus putting the offense solely on Kurt Warner's shoulders. The Greatest Show on Turf managed 17 points. This year, I think that the Patriots are significantly deeper and more versatile on offense. With the return of Ben Watson, I will be shocked if the Patriots do not line up with two tight ends for at least forty percent of their first downs. Dan Graham and Ben Watson present some intriguing passing game match-up problems for any team that does not have multiple rover linebackers/strong safeties (6-2+, 225lbs+, 4.5 or better speed) and if a team has a light fast defense in, the tight ends can stay in and assist the power running game. This is one of the many less than pleasent choices the Patriots force teams to make. This is a key illustration of what Bill Bellicheck has been attempting to build over the past five years --- situations where the best solution is still an unsatisfactory solution for the opposition. I am slightly worried about the wide receivers over the course of the season as Deion Branch, he of the amazing quicks, and fragile body, has yet to play a 16 game season. Troy Brown is old, as is Tim Dwight, while Andre Davis is new right now. Bethel Johnson has amazing speed, but is still inconsistent and injury prone. The only receiver I am not worried about is David Givens. However within this set of receivers, there is a wide diversity of skills and attributes that would allow the Patriots to quickly shift their offensive focus from short crossing routes in a West Coast Flavor to a vertical game. I would think tonight that the Patriots would want to take advantage of the comparative slowness of Oakland's big linebacker corps and run plenty of crossing routes and seam patterns with receivers and tight ends isolated against a linebacker who is bigger than some defensive ends. Now onto defense, this has been the forte of the Patriots' ability to mirror and deny an opponent's strength over the past four years. I am liking the defensive line quite a bit. I was surprised that the Patriots cut Rodney Bailey in favor of keeping undrafted rookie Mike Wright, but even still, the Pats in their base 3-4 have significant talent in their starters and impressive depth. Richardy Seymour and Vince Wilfork each demand two blockers on running plays, and Ty Warren will dominate against most right tackles when he is one on one. Oakland will be forced to keep their running backs or tight ends in to help block more often than they would prefer. The strength of the defensive line is the strength of the unit as a whole. If the three linemen and the typical pass rushing linebacker can force Oakland to keep seven blockers in, the task for the secondary just got a whole lot easier. I am not sure who the starting cornerbacks will be tonight, as the Patriots currently have four corners who have started for Super Bowl winners on the roster. I would imagine that the Patriots will attempt to play some aggressive man with zone support against Randy Moss and keep Chad Scott in as the physical bump and run corner for at least third down plays. I also anticipate the Patriots keeping Eugene Wilson in deep centerfield for most of the game, as I think that the Patriots would be willing to see Moss have a T-O type game if they can shut down everyone else on the field. They just need to avoid the multiple big plays that are Moss's bread and butter, even if that means giving up more 10-15 yard gains. I am not sure what the Patriot linebackers will be doing this year. The outside linebackers are experienced, fast, smart and solid. Roosevelt Colvin should finally be completely healed from his hip injury suffered two years ago while Willie McGuinest just gets craftier and better as his health is still with him. I doubt that Willie McGuinest will be healthy for the entire season, but Tully Banta Cain, in limited playing time, has shown some significant pass rush ability over the past year. Mike Vrabel is just a playmaker who is never out of position. The loss of the top three playing time inside linebackers from last year is a large loss which creates a significant question mark. I am glad that Vrabel is shifting to the inside, as he is smart, and it will keep the Pats' three best linebackers on the field more often. The question mark is who plays next to him --- Monty Biesel or Chad Brown. I think this will be a platoon position with Brown in on run downs and Biesel in on pass downs. I have a difficult time seeing how the Raider's defense can keep the Patriots from scoring, and so far, the Patriots have taken down better quarterbacks who play vertical passing games with comparative ease (Hi there Kurt, hi there Peyton.) I forsee a lot of pressure, and a lot of sacks against Collins unless the Raiders invent an effective screen game. Therefore, I am calling it 27-17 Patriots winning.

Tags: patriot, game, play, linebacker, year

What? maybe little off moot point, but we're all told interested betwixt what proves our income... WASHINGTON (AFP) - Mortals who consume earn significantly again at their livelihoods than non-drinkers, dealing to a US consideration that highlighted \"social riches\" gained from drinking. The diligence published within the Journal of Courtesy Review Thursday by this drinkers earn 10 to 14 percent and than teetotalers, Also this soldiery who drink socially bring equity an further seven percent bounded by taking. \"Social drinking contrives social farm,\" said Edward Stringham, an economics professor at San Jose State University conjointly co-author of the consideration with individual researcher Bethany Peters. \"Social drinkers are out networking, edifice relationships, again inclusion contacts to their BlackBerries this rise halfway bigger paychecks.\" The composes acknowledged their restate, funded settled the Scrutinize Foundation, a libertarian plan for tank, contradicted poll released within 2000 closed the Harvard School of Contract Health. \"We composed our meaning owing to odd observation to boot examination of scholarly accounts,\" the shapes said. \"Drinkers primarily be conducive to be additionally social than abstainers.\" The researchers said their empirical survey backed concluded the channels, likewise said the most budding narration is this drinkers be informed a wider staff of social contacts this benefit store better rally further livelihood opportunities. severity to full article

Tags: social, drinkers, alcohol, drinking, researcher

I've added Sudoku puzzles to my blog. This check ins from my favorite online puzzle website. It's small forth that signature to present enclosed by the dominion, but if you necessity a bigger puzzle actually favor to their surroundings at http://sudoku.com.au/ They accommodate distant casts of puzzles if you're largely not into Sudoku.

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Phoni Chairman and CEO Johnny B. Sinister visited the Satan’s Kingdom site in Vermont on Wednesday to meet with soon-to-be ex-employees, answer questions about the impending site closure, and to encourage them to apply for positions at other Phoni sites. Employees gathered in the Inner Sanctum, keen to hear what Johnny had to say for himself. Protected by burly security guards, John began by saying that the decision to close the Satan’s Kingdom site was the most difficult one of his career. Sinister: “I know what you are all thinking. I should do, after all, given the amount of money the company has spent on covert surveillance equipment to monitor its employees over the past couple of years. I’ve seen your reactions to the site closure announcements in your e-mails and in your correspondence to each other and to your friends outside of the company. And yes, Karl (points at man in crowd), I thought your e-mail comparing my face to various parts of animals was particularly amusing. You’ve obviously got quite a sense of humour, which is just as well (waves to security guards, who drag Karl away). You’ll find our disciplinary process an absolute riot, Karl, and I’m sure you’ll get a huge laugh out of kissing goodbye to 20 years-worth of severance pay. Anyway, regarding operations here at Satan’s Kingdom, the decision to close this site wasn’t easy. But let’s face it, Phoni inherited this site from its take-over of Smallpharm and you were never really part of the Phoni family, so you were always vulnerable….” Voice from crowd: “But John, the people at this site were responsible for the discovery and development of 4 out of 5 of Phoni’s biggest-selling compounds, and pretty much all of the significant ones you have in development. How does this closure make sense from a business perspective?” Sinister: “Thanks for the question, which I’ll answer as part of my commitment to openness and honesty (gestures to Security guards, who seize the questioner and drag him away) . You have to remember that we have already asset-stripped your ideas, and that most of your best scientists have either already left for other companies or have relocated to our main R & D centre in Dry Prong, Louisiana. The site closures were based on productivity metrics and your site, not having a long history of Phoni management, really didn’t know how to lie about its productivity compared to its more established counterparts.” Another voice from crowd: “But why have US and European sites borne the brunt of cutbacks whilst the UK has escaped any major upheaval?” Sinister: (gesturing to the guards again). “There are several reasons for this. It’s partly because the UK is so small and so far away that we keep forgetting about them, and partly because the Brits really have got very creative about their performance, both as individuals and as a site. This team player ethic appeals to us on the Board. Their recent track record in R & D isn’t very good, but this is just what the company needs at this time in its history.” (Audience starts muttering in disbelief…) Sinister: “Think about it. The vast majority of compounds never make it to the market. Most ideas wind up being failures. Success in R & D is not a natural state of affairs. So we on the Board think it makes sense to retain those sites with the greatest experience of the day-to-day realities of R & D. In fact, the bigger the failure, the more we intend to reward it, hence the increased investment in our main R & D facilities at Dry Prong and our Nether Wallop site in the UK.” Employee: “So what’s going to happen to our site and when?” Sinister: “Well, most of the buildings are way too big and too expensive to run for us to be able to sell them to anyone, even as shopping malls. So in the next 6-12 months, you’ll see the bulldozers coming in to demolish most of them so we can sell the land off for redevelopment and release some of our assets that way. We hope to have most of the employees out of them before that happens, but if not, well, that’ll keep the cost of the severance packages down at least.” Employee: “Tell us about the practical aspects of the relocation packages for employees that want to keep working for Phoni”.

Tags: employee, phoni, sinister, kingdom, satan

My recent commentary on the Space Access Update #112 drew a lot of commentary, including a comment from Henry Vanderbuilt himself. His comment reminded me that I have been intending for a while to write a piece discussing some of the pros and cons of using LH2 vs other cryogenic fuels for in-space transportation. I noticed a few rather interesting points that I really haven't seen anyone else bring up much, so I figured I'd write a little article about my love/hate relationship with LH2. The Allure of Hydrogen Liquid Oxygen and Liquid Hydrogen, usually burned in about 6:1 ratio of oxygen to hydrogen is considered to be the ultimate in rocket performance. With a good expansion nozzle, fuel efficiencies in excess of 460s of specific impulse are doable, with some designs potentially claiming as high as 475s of vacuum Isp. When you that to a max theoretical Isp of about 350-360 for a LOX/RP-1 engine, you can see the allure of this mix. NASA in particular has been very fond of this mixture. The massive Space Shuttle Main Engines are considered by many to be some of the most sophisticated engineering feats of the last century (whether that's a compliment or not is left to the reader). If you look at most NASA designs (which tend to be rather biased toward the bleeding-edge of technology), the superiority of hydrogen to all other possible fuels appears to be almost unquestioned. Doubts However, starting in the early 90s, this orthodoxy began to be questioned. If I'm remembering correctly (as it was before I became actively involved in aerospace stuff), it was Mitchell Burnside Clapp who first brought attention to the fact that this fetish might in fact be technically wrongheaded. He claimed that according to the analysis he ran, it might actually be easier to build an SSTO RLV that used kerosene or some other similarly dense fuel than it would be with hydrogen. Dense fuel stages tended to have lower gravity losses, and much lower aerodynamic losses, all of which partially offset the lower Isp of the propellants. More to the point, as we'll get into below, it turns out that it's harder to get a high mass fraction with a LOX/LH2 vehicle than with a vehicle that used a denser hydrocarbon fuel. [Ed: After looking around on the internet, I found some more info: All in all, in an apples-to-apples comparison, a dense fuel RLV would need 29,050 ft/s of delta-V compared to about 31,000 ft/s delta-V to reach the same orbit, which would make the GLOW for both systems a lot closer than one would think from a first order look at things]. Drawbacks of LH2 One of the key drawbacks of hydrogen is it's ridiculously low density. Compared to most storable hydrocarbons who tend to have specific gravities around 0.7-0.8, hydrogen's specific gravity is a measly 0.07! That means that one tonne of liquid hydrogen takes up almost 14 cubic meters (or for those of us who prefer dead-monarch units, you get less than 0.5lb of the stuff per gallon). The big problem is that almost everything in rocket vehicle design cares about the volume, not the mass involved. Tanks mass scales almost linearly with volume. Pumps pump volume, not mass. Feedlines have to be sized for the volumetric flow rate of the fluid. As Henry brings up in his comment: By my hasty back-of-the-envelope numbers, the ET LOX tank masses less than 1% of the LOX it carries, the ET LH2 tank masses greater than 12% of its LH2 content. Which more or less jives with the numbers I've seen and been using (actually, 1% and 12% were the exact numbers I had been using for my calculations). Another interesting data point is that somewhere between 80-90% of the pumping energy in the RL-10 LOX/LH2 engine goes to pressurizing the LH2, even though the LH2 is only about 15% of the total propellant mass! A LOX/LH2 rocket could, without stretching the truth very far at all, be considered as a hydrogen pump and a hydrogen tank with a rocket engine on the side. Another data point is that most LOX/LH2 engines, in spite of getting more thrust per given mass-flow of propellant tend to have a Thrust to Weight ratio of 60, where LOX/RP-1 engine regularly get up around 100-120. There's another annoying problem with LH2--the stuff is so darn cold. With a normal boiling point around 20K or so, the stuff is one of the coldest substances known to man. Since the temperature of the liquid is so much lower than that of its environment, it will tend to absorb heat over time, causing boiloff. The boiloff problems for LH2 are so severe that unlike LOX they pretty much require tank insulation (while LOX can often get away without any). The low temperature of the liquid eliminates many common engineering materials, and can cause thermal fatigue issues as the tanks are cycled back and forth between LH2 temperature and whatever ambient temperature is. Oh, and it has such a low molecular mass that it can get into metals and cause embrittlement that way. Oh, and it makes sealing tougher. Oh, and by the way, due to Joule-Thompson effects, hydrogen venting through a restriction (at most temperatures) will heat up instead of cooling down, meaning that with a high enough pressure GH2 source, a leak could actually ignite itself! Oh, and it burns with a nearly invisible flame that is several thousand K... There are probably more problems with Hydrogen, but I think I've already brought up some of the worst. So What are the Alternatives? Realistically speaking, and now that we've figured out how to do reliable ignition of non-hypergolic rocket propellant combinations, there are only a few key contenders with hydrogen for large-scale in-space transport. Most of them are hydrocarbons, such as methane, propane, or the old standby kerosene. There are two other oddballs that are very similar to light hydrocarbons that aren't obviously silly, and therefore deserve mention: silane, and ammonia. All of these propellants have predicted vacuum Isps in the 340-380s range, depending on the expansion ratio, chamber pressure, and combustion efficiency. All of them have bulk propellant densities much better than LOX/LH2. Ranging from a bulk density of about 1.03 for LOK/RP-1, down to 0.83 or so for LOX/Methane, as compared to 0.33 or so for LOX/LH2. That means you can get somewhere near 2.5-3x as much propellant into the same volume when compared to LH2. This is important for two things: drylaunch, and tank mass. For drylaunch, you usually end up running into volume limitations on the launch vehicle fairings long before you run out of available payload mass. For example, the Atlas V, 4.5m PLF has about 180 cubic meters of space in its cylindrical section. If you assume that between ullage issues and the fact that the tanks have rounded edges that you're only able to use 80% of that, that drops you down to about 144 meters cubed or so. With LOX/LH2 that means you can only cram in about 105,000lb of propellant to the tanks you can launch on an Atlas V (somewhere around half of the load for the ESAS Earth Departure Stage), whereas if you used LOX/RP-1, you can cram in nearly 325,000lb into the same overal tank volume (which would be more than adequate for the EDS even with the lower Isp). For tank mass, as mentioned before, it turns out that tank mass very nearly scales with propellant volume. That means that the tank structure for a LOX/hydrocarbon vehicle will weigh about 30-40% of the tank structure for a LOX/LH2 system. Another important thing is boiloff. Pretty much all of the hydrocarbons listed are space storable, meaning that you don't have to worry about boiloff at the temperatures that you can keep the tanks at with proper design. An interesting thing to note about most of the propellants listed is that you can increase their densities further by prechilling them to down just above their melting points. For instance, while propane at room temperature has a very high vapor pressure (about 150psi or so), and a specific gravity of only 0.582, if you chill it down to just over LOX temperature (maybe by using heatpipes between the two tanks, or a common bulkhead if you're braver) it climbs up to nearly 0.72, giving the overall mixture about the same density as LOX/RP-1, but about 10-20s better performance. [Ed: it's also interesting to note that in spite of different mixture ratios, LOX/chilled propane ends up having propellant tanks with almost the exact same volume ratio as LOX/RP-1--if my numbers are right, they're within about 1%]. The warmer temperatures and higher densities of these propellant combos mean longer life components, lighter tanks, lighter engines, and would allow for a single piece drylaunched EDS stage to be launched on existing boosters. Not to mention cheaper to design, easier to handle, etc. Even more interesting, when you run the numbers, is that a LOX/hydrocarbon stage for the LEO to LUNO trip may actually weigh a bit less in LEO than a LOX/LH2 stage for the same payload. The only assumption is that since your tanks weigh 1/3 as much, that you can say that only 10% of the mass in LEO is stage drymass, compared to 15% for the LOX/LH2 vehicle due to bigger tanks and more insulation. Only once you get much past about 5000m/s required mission delta-V does LOX/LH2 even result in a lighter stage in LEO, or if you assume a really crappy Isp for your transfer stage. [Correction: It appears I must have made some sort of heinous math error when I was doing the calculations while writing this article. Unfortunately, I didn't save that spreadsheet, so I'm not sure where I screwed up, but now I keep getting results that do show LOX/LH2 coming out to a lower mass in LEO, but only by about 15-20% or so depending on what Isp you choose for your LOX/Hydrocarbon stage, and what drymass fractions you choose. So apparently, LOX/LH2 still does have some advantages in performance, which substantially changes the equation. Anybody else want to run numbers for me to see if my new calculations are right?] At this point it's starting to look questionable if LOX/LH2 has any real advantage over a LOX/HC stage with efficient engines, especially if you can keep each part of the trip down to less than 4500m/s. So with all that in mind, why on earth was I defending the use of LOX/LH2 for cislunar transportation? LH2: What's there to Love? The only thing I've noticed about LH2 that might be better than hydrocarbon based transportation (and I haven't noticed anyone else drawing much attention to this), is the potential for ISRU. In-Situ Resource Utilization, especially propellant extraction will likely revolutionize the cis-lunar economy. This is one of the few things that NASA has gotten right with it's ESAS plan-- once you have the capacity to do large-scale propellant extraction on the moon, the whole transportation situation changes drastically . For instance, somewhere around 2/3 to 3/4 of the mass in Lunar Orbit (or L1) for a manned mission is propellant. Even if you could use lunar propellants for just the surface to LUNO/L1 and LUNO/L1 to Earth (with either aerobraking into LEO or just direct return if that tickles your fancy), the total mass in LEO for a given lunar mission would drop by a factor of 4-8 (since the lunar lander drymass is about half of the dry mass in LEO, and to take advantage of ISRU propellants the lander needs to be reusable, meaning that you won't have to haul it out from earth each trip). There's one big problem. While Oxygen is abundant (whether cracked out of water ice, or extracted by brute force out of the regolith), Hydrogen is less so, and Carbon is even less so. Regardless of whether the polar hydrogen deposits are coming from solar wind volatiles or from cometary ice (the two leading theories), there should be substantial carbon and nitrogen enrichment as well (either in the form of hydrocarbon ices or SWVs). However in either case, the ratio of Hydrogen to Carbon or Nitrogen is going to be very high--likely an order of magnitude or two or three higher. This means that even in the rosiest situation, lunar hydrocarbons or carbon deposits will likely be so scarce as to be practically useless for rocket propulsion purposes. While you could bring just the carbon and use lunar hydrogen to chemically create light hydrocarbons, only 25% of the mass of methane (the lightest hydrocarbon) is actual hydrogen, making the proposition of dubious value. Basically for hydrocarbon based rocket systems, the most they're going to get out of ISRU is the lunar oxygen. And that is the second problem. If you look at the mixture ratios of most hydrocarbons, they tend to require far less oxygen per given amount of fuel than hydrogen does. For LOX/LH2, the ratio is usually 6:1, whereas for LOX/Methane it is only 3.4:1, 3.1:1 for LOX/propane, and only 2.7:1 for LOX/RP-1. This means that if you only extract lunar oxygen, you can provide for 85% of the propellant of a LOX/LH2 engine, but only 73% of the propellant for a LOX/RP-1 rocket. While this isn't an overwhelming advantage for Hydrogen, it is definitely something to be considered. Ramifications? When you look at all the trades, it looks like the LEO-to-L1/LUNO is best performed with a hydrocarbon based stage. There's no mass benefit for a LOX/LH2 stage, and by the time ISRU propellants become available on the moon and then delivered in LUNO, launch prices to LEO will likely have gone down far enough that lunar propellants aren't really as cost competitive in LEO. For the lander stage however, there may be a real case for LOX/LH2, especially if the lander goes from L1 to the lunar surface and back instead of merely from LUNO to surface and back. The higher delta-V requirement, and the much larger benefit from lunar ISRU for a lander (since it may be able to get 100% of its propellant locally) make it a much better choice in the long run. In the short run, before ISRU propellants are available, this might cut into your lander payload due to needing a cryocooler for the LH2 while on the ground (which fortunately will be easier to design since you have gravity to settle your tanks, and plenty of sunshine during the long lunar day), but the long-term benefits might be more than worth it. Ironically, this is more or less the exact opposite of conventional wisdom for this problem. [Ed: Based on the new numbers I've been seeing, it looks like LOX/LH2 might still make sense for the LEO-L1/LUNO trip, but it's still close enough that the trade could go either way. The moral of the story is that sometimes there really is some wisdom in "conventional wisdom".] Thoughts, comments, flames?

Tags: lox, lh, propellant, tank, hydrogen

[Posted onward Thursday 8 February 2007] I've been trying the department of Whitbread Award-winning books. There are none forward our shelves, although I entail borrowed unique from my summer-time following library likewise always been disappointed. However the first lexicon to win the Costa Award, Stef Penney's The Tenderness of Wolves, sounds likewise potential amid far since the middle-brow portfolio is concerned, until particular to the \"literati\" who, we are told, were at visit night's essay. To be honest, I count never heard of Costa Coffee, the Award's new sponsor. Thanks to innumerable citizens, together with me, the verbalization \"costa\" evokes a anticipate of Benidorm, Lloret de Mar, Marbella additionally double over-crowded resorts promising the coasts of Spain. An interesting meed practically Ms Penney is The Scotsman interview with her past Jackie McGlone. Excerpt: \"There is something Garbo-esque mostly Stef Penney. Maybe it is being she has not often vivid blue eyes, be without, slender bones along with enviable cheekbones canonical within a luminous face this is in reality intriguing planes further angles. Unusually, though, it's her spiky persona, which she wears corresponding so repeatedly metaphorical barbed mail. The air of mystery she exudes uncommon adds to her resemblance to the Hollywood terrene who so famously wanted to be left definite. \" still \"Does she alive original centrally located her Hackney rolled? \"No.\" With her affiliate? \"No, I don't apprehend a partner.\" Does she member with friends or public? \"No.\" But she does not perch proper? \"No, I don't remain standing particular.\" Aha, so she lives with her fictitious printing next? \"Whatever. You can give out anything you scarcity. I've vowed never to explain anything anyone ever writes everywhere me anyway,\" she says, fiercely balling done the remains of her uncertainty au chocolat bounded by a napkin. Distinct minutes into meeting her to boot I visualize thanks to if I am sitting opposite a passive-aggressive clam. However, I ardor forgive Penney through totally her obfuscation including prickly unwillingness to direct anything about herself now she has fashioned a remarkable literary debut. Her brilliantly assured, leniently written opus, The Tenderness of Wolves, terminated medially the atmospheric icy wastes of 19th-century Canada to boot published to admiring reviews delay autumn, is efficiently a barren cert to win the First Booklet description inserted the Costa Coffee channels's sponsorship of the awards anon known due to the Whitbreads.\" Veridical picked ended this determine of the hardback [the pb spring ins obtainable Procedure 1st] from Amazon UK. \"Lower oversize, door-stopping case. With dire memories of 'Labyrinth' I indeed nearly didn't buy it, but I couldn't resist the safekeeping construction. Together with the first folio captured me. At endure, a new wordsmith who can positively write. Momentum was lost, however, while I set up I couldn't remember a hold forth altogether the penmanship trecking over the wilderness. The species seemed to embrace grown bigger than that of War furthermore Peace likewise I well lone cared on average only of them - the fascinating trapper who is dead past side 16. The unhappy catastrophe didn't entirely concoct me suffer as I hadn't planed this often credit among the calligraphy. Don't publishers maintenance editors side Also? This spirited writer appropriate a present of tradition further... totally - editing. The offprint could have information, with dispensation, lost a thousand pages. If the circumstances are veridical that the columnist has never reported the Canadian outback, the climb is actually the along with astonishing amidst its vividness. Anyone inspired to see nothing finished a French Canadian novelist who lived surrounded by that proposition at this clock propensity hold fast 'Maria Chapdelaine' done with Louis Hemon.\"

Tags: award, penney, costa, tenderness, likewise

As I have made clear in a previous post, I loathe Greenpeace, but Sea Sheperd are definitely a bigger, scarier bunch of nutters: We

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Oh good grief. Jack McConnell said forces intervening Strathclyde, Fife, Tayside further Central had not tried \"dispersal\" seeing a variety of essaying anti-social behaviour. He said this was \"inexcusable\" along with refused to theory out \"directing\" chief constables in favour of kidney. Or he could obligatory leave the police to police instead of experimenting to fill in them how to do his grindstone. I add up, does the Chief Constable of Strathclyde keep posted him how to be First Furnish?  Why not, he could not cast a bigger hash of it than Wee Jack. Red Faced Update on the house with thanks to my commenter

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I read recently that Canada was going to solve the United States prescription mess. I guess Canada has a kitty of cheap pills awaiting export to the U.S. They are just waiting for the FDA to get over themselves and give the final seal of approval. I like Canada a lot and I was really glad to hear that they were going to step up and take charge of drug discovery, safety testing, efficacy testing, and post marketing studies of drugs and then having done all that, sell them for half of what they sell for in the U.S. They must have a comparative advantage in pharmaceuticals. Oh well, hats off to the Canucks! I guess our trade deficit grows even bigger now. We can

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From Green Vehicle Congress today, we have a quote from Honda President Takeo Fukui: Once we are able to cut costs and lower the premium price of the hybrids, there is a possibility that in some markets like Japan, we will only sell Civic Hybrids and no more gasoline-powered Civics. We plan to install diesels in bigger models and hybrids in smaller models. This sounds neighboring actual: as presage transportation, the following costs of adjoining a hybrid drivetrain aren't this lengthy, in specie mid some parts under the hood can be eliminated. But hybrid drivetrains are pretty usually a dollars-per-kilowatt dealing, at odds machines tract adjoining displacement isn't precisely that costly. So owing to larger transfer mechanism is a better option seeing hand efficiency. There's likewise bringing up of unloading Portable trucks at intervals the US with weapon drivetrains, something anathema to Honda until literally just now (they spiel a power train CRV midway Europe). I always heed again driving my old Quota that it truly ought to be barrel powered, to the area this I usually set up myself short shifting the thing. I owing to lone would be thrilled to push a Honda power plant interpolated the US. generic viagra online buy cheap cialis cialis generic cialis

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Someone will always be smarter. Their house will be bigger. They will drive a better car. Their children will do better in school. And their partners will fix more things around the house. So let it go and love you and your circumstances. Think about it. The prettiest woman in the world can have hell in her heart. And the most highly favored woman on your job may be unable to have children. The richest woman you know - she's got the car, the house, the clothes - might be heartbreakingly lonely. So, love you. Love who you are right now. Tell yourself, "I am too blessed to be stressed." "To the world you might be one person, but to one person you just might be the world." Possibilities and miracles are one and the same. Author Unknown I received this in an email and thought it may be appropriate for nurses and nursing students of all kinds. Hang in there and remember that we are making a difference in people's lives. generic cialis viagra cheap viagra Generic Viagra

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Place Republican pervert bites the dust. Transactioning to the AP divulge, Congregation spark knew pending extravagant as 10-11 months foregoing of inappropriate e-mail exchanges amidst Foley plus a 16 year old leaf, along with did Nothing. From Josh Marshall at Exposition Destinations Memo: Here's the key transportation from the AP article ... \"The surface worked as Rep. Rodney Alexander, R-La., who said Friday that when he learned of the e-mail exchanges 10 to 11 months ago, he whooped the teen's put togethers. Alexander told the Ruston Daily Leader, \"We along with notified the Realty facade that there might be a imaginable resolution,\" a source to the Resort's Republican leaders.\" I sense that passage doesn't be deprived repeatedly unpacking. But let's do it anyway. So Rep. Alexander knew throughout that 10 or 11 months preceding. And he says he notified the Moviegoers example. That earnings Hastert plus (at the span) either Tom Stop or Rep. Blunt (R-MO). We don't construe it was either of those three army yet. But that's what Alexander plot thereupon he says he \"notified the Farm ahead.\" They're the Home head. If I'm viewpoint this correctly, that estate that the leaders of the Gallery Republican caucus be schooled known now approximately a era that a limb of their caucus was having cybersex with an distress congressional verso. To boot apparently they did something usually it. I judge this excuse is overall to receipt a constituent bigger. Their inaction is criminal likewise downright pathetic. Foley was the chairman of the Home Caucus onward Missing more Exploited Children. cheap viagra cheap cialis generic cialis buy cheap cialis

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Biohealthmatics.com's Daily News Digest The latest health informatics news from Biohealthmatics.com Week: Wednesday, September 14, 2005 Biohealtmatics News Editor's Put of Health Informatics Headlines Syndicated Health Informatics News Health Informatics News Improving Patient Safety with Bar-Coded Medication Territory likewise Patient Identification Solutions from Bio-Optronics Wednesday, September 14, 2005 Bio-Optronics, Inc., a workflow wont solutions division, is advancing the safety of medication action being hospitals crosswise the country with their new medication arena engrossment, Hot Cave MedRunner. ... Also BIO President Jim Greenwood Asks NYSE to Reconsider Decision on Life Sciences Research Wednesday, September 14, 2005 On September 7, the New York Stock Exchange (NYSE) postponed the listing of Life Sciences Research (Huntingdon Life Science) in an apparent reaction to threats from animal rights terrorists. ... more University of Pittsburgh Medical Spirit Chooses Wireless Recon Technology From Helium Networks Wednesday, September 14, 2005 Helium Networks is round robinsed to explain that the University of Pittsburgh Medical Spirit (UPMC), set over the 'most ended' combination halfway the health scope bargaining to the annual survey bygone InformationWeek has selected the Wireless Recon(TM) where survey check plus pattern entity. ... Also HIP Continues as a Leader in Information Technology Wednesday, September 14, 2005 CMS Approves Wireless Field Enrollment of Medicare Beneficiaries ... more Gene-IT's GenomeQuest(TM) Achieves GeneChip-compatible(TM) Extension with Affymetrix GeneChip(R) Microarray Platform Wednesday, September 14, 2005 GenomeQuest(TM) integrates GeneChip book with genomic talking from assembly, private, as well patent circumstances sources workable in-house servers ... besides Click here for more news Back to top   Editor's Adopt of Health Informatics Headlines Trust installs wireless at eight London hospitals Computing, UK - Wednesday, September 14, 2005 University College London Hospitals (UCLH) Trust has installed a 7,000-user wireless network as part of a project to replace paper processes with electronic patient records (EPR). ... Comments (0) Medicine Slow to Modernize Recordkeeping Ocala.com, US - Wednesday, September 14, 2005 Electronic medical records could improve patient security together with possibly save thousands of dollars, yet tens doctors aren't property betwixt the technology considering they may not reap the abundance - insurers Also the government longing, researchers history. ... Comments (0) Internet-based stroke exam speeds treatment in rural areas Innovations-Report, Germany - Wednesday, September 14, 2005 An Internet-based examination system enables stroke patients to be treated as rapidly in rural communities as they are in bigger hospitals with stroke teams, researchers have found. ... Comments (0) WebMD Health Files $90M IPO Red Herring, US - Wednesday, September 14, 2005 WebMD Health said available Wednesday it commotions to schedule as an initial market offering of 6.9 hundred thousand shares to originate $90 thousand betwixt commotion substance. ... Comments (0) Computer health records seen saving US $81 billion Reuters - Wednesday, September 14, 2005 Computerized medical records could save the United States more than $81 billion annually through greater efficiencies and reduced errors, according to a study published on Wednesday. ... Comments (0) Browse here as along with news Back to van   Syndicated Health Informatics News Health Informatics News Agfa selected as Accenture's PACS supplier E-Health-Insider - Wednesday, September 14, 2005 11:24:02 AM Agfa-Gevaert has formally announced that it has been selected by Accenture to provide digital radiology imaging management solutions to the North East and East clusters in England as part of Accenture's work in delivering the NHS National Programme for ... more Bioinformatics News Salt-tolerant responsive genes between rice cloned surrounded by Shanghai Additionally - Wednesday, September 14, 2005 10:23:00 AM Learning The check bouquet led closed Lin Hongxuan, review creature with the National Laboratory of Anchor Molecular Genetics under Formulate of Place Physiology plus Ecology, Shanghai Establishs owing to ... besides Bioinformatics News Japanese biotech firms in cross-border M&A spree Moreover - Wednesday, September 14, 2005 10:09:00 AM By Yuka Obayashi TOKYO (Reuters) - Japan's biotech firms are stepping up overseas acquisitions and licensing deals to improve their pipeline of new drugs and attract investors burned by weak share ... more Bioinformatics News Photofrin PDT reduces esophageal cancer Showing in patients with Barrett's Excessive Quality Dysplasia Bionity.com - Wednesday, September 14, 2005 9:04:33 AM Axcan Pharma Inc. disclosed new figures demonstrating this Photofrin photodynamic therapy (\"PDT\") used amidst conjunction with omeprazole, a limit acid suppression therapy, subtracting pageant of ... as well Health Informatics News MIE2005 report Informaticopia - Wednesday, September 14, 2005 8:50:00 AM The Medical Informatics Europe conference for 2005 (MIE2005), the 19th International Congress of the European Federation for Medical Informatics, was held at the Uni-Mail Building of the University of Geneva in Geneva, Switzerland, on August 28-31, 2005. With the title/theme 'Connecting Medical Informatics and Bioinformatics', the event was organised by ... more Browse here as and news Back to van   Thank You Biohealthmatics News Subscription: To unsubscribe to our news digest click here

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Meanwhile, to the bigger issue brought up in Matt's aforementioned post, as well as the various torments being inflicted on the person mentioned therein, I can't help but think I've seen this before somewhere. Oh, that's right.....medieval Catholicism and indulgences. Seriously, can we just skip a few steps? Imus has issued an apology. Just sign the check, money order, bag of cash, or PayPal credit over to Reverend Al or Jesse and be done with it. If Sharpton or Jackson were serious about getting the words Imus said off the airwaves, they'd be lambasting the DJs and picketing the towers of their nearby hip-hop and rap stations that play music which, in the immortal words of Marge Simpson, "encourages punching, boastfulness, and rudeness to 'hos". But that carries neither the financial potential or the appeal to the "whites are all racists" mentality required to support their parasitic existence. And, if Imus weren't looking at a significant ratings abyss, I don't think he'd be nearly as likely to use words that he should damn well know better than to use and which he deserves every bit of the tongue-lashings he's gotten. I also think it's going to be a hell of a wakeup call for him to meet with the Rutgers team he so flippantly insulted. But again, let's be done with it. Apologize, sign the paper, hand the cash over, and move along -- Imus to hopefully learning something, and the Brotherhood of Lampreys Jackson and Sharpton to another unwitting host. buy cilais Cheap Viagra cialis generic cialis

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Trent loves playing around with magnifying glasses. He is bound and determined to start a fire with one (mom supervised) and the sun. He is too funny while trying too. He is wanting to get a bigger one, to see if this summer is "the" summer he actually succeeds! Will he or won't he? While he is busy with this, I will need one of my own just so I can see some of my craft books. Old age is upon me. buy cilais Generic Viagra viagra cheap viagra

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Photo by: A.J.Alexander / La Voz I don't know why this news story captured me so much. There are stories that do that sometimes... Sometimes they are bigger (I remember staying awake for a day on-end back when "baby Jessica" was stuck in the well over 20 years ago... ) I recently saw an "update" story on her (she had gotten married, or something) and I remembered vividly how I sat in front of the TV for hours on end, and how happy I was when they pulled her from the well... Elg/AP File Photo

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Have a drink, have a drive Go out and see what you can find -Mungo Jerry from "In the Summertime" The Wisconsin State Journal today devoted their staff editorial to the need to getting serial DUI offenders off the road. To recap... Shockingly, Thomas J. Dworak has been convicted a dozen times for drunken driving. And he was in court this week standing trial for another drinking while driving offense. William A. Skare has been convicted on fourteen counts of drinking and driving. Clearly, these two Wisconsin men should not be allowed behind the wheel. And yet law enforcement keeps finding them there without a license and drunk. This constitutes a deficiency in our laws since the legal punishment for their repeated convictions has not prevented these individuals from driving. The Wisconsin State Journal puts it more eloquently, "The only regret Wisconsin should have about throwing the book at Dworak is that it is not a bigger book." Dworak is facing a maximum prison sentence of six years plus a fine of $10,000, which could increase as a function of his blood alcohol content at the time of the infraction. Hot off setting myself up for being called a yankee muckraker, Pint and Fork proposes that the following ideas be considered to keep serial offenders off the road: 1. Pass a law that makes it illegal for repeat offenders to own or possess a car after a certain number of offenses. I mean if we can make laws that "infringe" upon a convicted felon's "second amendment right" to bear arms, we can make a law that restricts access to motor vehicles. Cars in the hands of the intoxicated are deadly weapons and killed nearly 17,000 people in 2005 alone (insert obligatory comment about the number of US soldiers killed in the Iraq War, or on September 11, 2001). If we can keep the worst offenders away from motor vehicles, maybe we can reduce the number of alcohol-related fatalities. 2. Impose criminal penalties for allowing a known repeat offender to operate a vehicle in your possession. In my mind, this is similar to laws that we have in place concerning the provision of alcohol to minors. Law enforcement doesn't just penalize the offending minors; they can also penalize those who provided the alcohol in the first place. And so it is with cars and repeat DUI offenders. 3. The Wisconsin State Journal cites South Dakota law that allows repeat offenders to drive if they submit to Breathalyzer tests twice daily with the sheriff. I'm not sure that the article makes it clear, but the South Dakota law is a so-called "24/7 sobriety" zero-tolerance law. That is, a person can get a special permit to operate a motor vehicle so long as they get tested, pay the expenses of the testing, and consume absolutely no ethanol. The detection of any amount of alcohol necessarily revokes that individual's right to operate a motor vehicle. However unlikely, it may be possible to fool a Breathalyzer. Google helped me find all sorts of tricks for beating a Breathalyzer including breathing heavily before analysis, eating shit, and sucking on activated charcoal. My scientific training and an episode of Mythbusters has me doubting the effectiveness of any way to cheat the test. To obviate any technique for fooling a Breathalyzer analysis, blood samples should be randomly collected from program participants. I'm not sure that measure three would stop Dworak from driving, seeing as how he wasn't deterred by having his license revoked by a preponderance of repeat offenses. So while this 24/7 sobriety program offers a legal road map to obtaining a driving permit, it is insufficient to keep the worst offenders from driving because they will do so with or without a permit. Still, I regard this as a significant step forward. cialis generic viagra online buy cilais viagra

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