Domain: physorg.com
Stories and comments across the archive that link to physorg.com.
Comments · 719
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Re:e-ink
Sorry... Slashdot messed up my links
Printed RFIDs
Thad Starner is a Borg
Cheers! -
If that's the case, then I am a dog, too!
I did an mp3 compression experiment with Coldplay "clocks". When compressed via mp3 to 128kbps, it sounds awful. Very noisy, and the note beginnings aren't clear. They sound TOO SOFT. Instead, when compressed to 320kbps, it sounds MUCH, MUCH better, and the "ding" effect when each note is hit, is heard much more clearly. The explanation is that a piano note contains a lot of high freq. harmonics (even if it's not a high note), and these are lost in the mp3 compression. Now, most MP3 music found on the internet is 192kbps, and the last time i checked, a lot of it was encoded at 128.
And that's WITHOUT taking into account the dynamic range loss in modern music (eew).
In short: Yes, the quality loss can be recognized by a human - specially one with music training. Of course, if you're the type of person who plays his iPod too loud with his earbuds, then your ear is already damaged enough so you won't be able to tell any difference. Too bad for you. -
Re:BadAstronomy has covered it already...
Covered? The "coverage" consists of:
- the claim that no meteorite remain from Tunguska has ever been found (proof by bold assertion)
- a comment that the writer couldn't find the foundation's website. Gee, I wonder if the writer was searching for websites in Russian?
- mockery and sarcasm as soon as the subject of aliens arises. After all, scientists know that aliens can't be visisting the earth, because the Fermi Paradox says so.
I don't think that's particularly good coverage
Anyway, here is a 2004 story from what looks to be a reputable science website on the discovery of the meteorite, with photo
Hmm, the PhysOrg story is just a press release by the foundation, there is an official statement in the comments below the story stating "this new theory was announced at the press conference on results of the recent expedition to the crash site. It is not our own conclusion, but theory made by scientists who claim they found some proving evidences. As scientists, we truly believe that even some irrational theories have the right to be announced."
If the Bad Astronomer is not good enough for you, how about articles from Space.com and MSNBC which were written in August 2004, when the foundation claimed to have found the alien spacecraft parts. Neither article gives much credence to the claim that the team's claimed dicovery. The foundation said at the time that they would be providing evidence (the recovered "spacecraft parts") but 3 years later they have yet to do so. The Bad Astronomer did not write a lengthy article because any rational being already knows that this foundation is full of shit. Extraordinary claims require extraordinary proof, and they have provided none. -
Re:BadAstronomy has covered it already...
The photo isn't there, but there is there is a link to a supposed photo.
I'm rather unimpressed by the photo (158 pixels wide is rather small to recognize anything except a bunch of guys standing around a half-buried object in the forest somewhere).
If this is "evidence", it's pretty weak. And what the heck have they been doing with it for the last 3 years? It isn't that hard to figure out whether something is or is not a meteorite, or is or is not a piece of, say, a discarded Russian rocket stage (Tunguska is downrange of the Baikonur Cosmodrome). If it were a real meteorite, it would be the first one found in the vicinity of the Tunguska event, so it would be significant scientific news. Where are the details of the find?
This has less to do with preconceived notions than the virtual absence of any documentary evidence that the thing actually is a meteorite. -
Re:BadAstronomy has covered it already...
Covered? The "coverage" consists of:
- the claim that no meteorite remain from Tunguska has ever been found (proof by bold assertion)
- a comment that the writer couldn't find the foundation's website. Gee, I wonder if the writer was searching for websites in Russian?
- mockery and sarcasm as soon as the subject of aliens arises. After all, scientists know that aliens can't be visisting the earth, because the Fermi Paradox says so.
I don't think that's particularly good coverage
Anyway, here is a 2004 story from what looks to be a reputable science website on the discovery of the meteorite, with photo
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Re:I have a theory...
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Re:Global Warming?
Good call... here's some info. Calls out both gravitational heat and left-over planetary formation heat as being in the 5-10% range each with the bulk of heat generated by radioactive decay. Be that as it may, my point above was that drilling holes and tapping that heat energy does not affect the source of that energy.
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Re:Boyle's Law is why the core is hot.
Ummmmmmmm, no. The earth's core is hot mostly because of the decay of radioactive isotopes within the earth's core: http://www.physorg.com/news62952904.html "the vast majority of the heat in Earth's interior--up to 90 percent--is fueled by the decaying of radioactive isotopes like Potassium 40, Uranium 238, 235, and Thorium 232 contained within the mantle. These isotopes radiate heat as they shed excess energy and move toward stability. "The amount of heat caused by this radiation is almost the same as the total heat measured emanating from the Earth." "
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It is cooling down.From: http://www.physorg.com/news62952904.html "We don't think this original heat is a major part of the Earth's heat, though," Marone says. It only contributes 5 to 10 percent of the total, "about the same amount as gravitational heat."
To explain gravitational heat, Marone again evokes the image of the hot, freshly formed Earth, which was not of a consistent density. In a gravitational sorting process called differentiation, the denser, heavier parts were drawn to the center, and the less dense areas were displaced outwards. The friction created by this process generated considerable heat, which, like the original heat, still has not fully dissipated.
Then there's latent heat, Marone says. This type arises from the core's expanding as the Earth cools from the inside out. Just as freezing water turns to ice, that liquid metal is turning solid--and adding volume in the process. "The inner core is becoming larger by about a centimeter every thousand years," Marone says. The heat released by this expansion is seeping into the mantle.
For all this, however, Marone says, the vast majority of the heat in Earth's interior--up to 90 percent--is fueled by the decaying of radioactive isotopes like Potassium 40, Uranium 238, 235, and Thorium 232 contained within the mantle. These isotopes radiate heat as they shed excess energy and move toward stability. "The amount of heat caused by this radiation is almost the same as the total heat measured emanating from the Earth."
Sometime billions of years in the future, he predicts, the core and mantle could cool and solidify enough to meet the crust. If that happens, Earth will become a cold, dead planet like the moon.
Long before such an occurrence, however, the Sun will likely have evolved into a red-giant star, and grown large enough to engulf our fair planet. At that point, whatever heat is left in the mantle will hardly matter.
So there you go. It is cooling down very slowly so there is plenty of energy for us to use. Also if you know about the end of the universe, you will understand that eventually we will not have enough energy to survive anyway. http://en.wikipedia.org/wiki/Heat_death -
There's a lot wrong with the article itself.
I can't believe this ridiculously poorly written article ever hit the presses. I've never owned a chipped system, but I'd have bought a chipped XBOX over an iTV or whatever in a heartbeat if it weren't for the risk of this sort of petty nonsense and the fact that the open sourced Neuros OSD hit the market and my living room at the same time I last considered such a purchase. Submitted the following to the Associated Press:
I'd like to submit a correction for the article reprinted here, written by one "Federal Agents Go After Gaming Pirates Discussion at PhysOrgForum": http://www.physorg.com/news105194834.html
Your author not only prominently quotes Myers saying that modchips have only "one purpose," facilitating piracy, but implicitly states the same fallacy the paragraph before. The Wikipedia article and every vendor go to great lengths to point out numerous uses that would have been perfectly legitimate and perfectly legal prior to the 1996 DMCA, and still perfectly moral and ethical and permissible in many other countries.
Modchips enable open source developers with every right under their license to Linux to port that operating system to the XBOX, to create full-fledged media players that beat the iTV to market by YEARS, ala the XMBC. Additionally, these modchips have allowed hobby game developers to do just that for decades. Other modchips do NOTHING aside from disable region code lockouts on consoles and DVD players.
This article is a joke. The incredible disregard shown by the facts of the situation shown by your reporter should have serious consequences - Would it have killed the lazy fellow to Google this term that was so apparently new and foreign to him? -
Apple's Market share..
Off topic, but related to the iPhone
Dont you think its funny that slashdot didnt run the story that on tuesday Apple's shares fell to the lowest they have ever been in seven years... Funny that dont you think?
http://www.physorg.com/news104518387.html
After all be it from slashdot to make Apple look bad....
If that was a Micro$oft share drop they would have been all over it in a heartbeat
Bub bye slashdot.. -
Re:Fascinating subject
Fresh data: http://www.physorg.com/news104501218.html
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Re:This is a climate change thing.And?
Oh. I thought when you said rare, you meant a couple of times every hundred years.
I just did some searching, and found that there were two in the last six months.
Here and here. One off the coast of Australia, and another around New Zealand.
Is two enough for a pattern? No, but it is noteworthy. According to this item it seems that squid in general, (off California's coast) are behaving oddly. They think it may be due to the reduction of natural predators, but who knows?
-FL -
The Paper & ArticleWhat Bojowald's work does, as I understand it (the paper as I write this is not out yet, so I am going by my limited knowledge of LQG and other theories like it) is simplify the math enough to be able to trace some properties of the Universe backwards, right down to T=0, which he calls the Big Bounce. I caught this story on PhysOrg yesterday and subsequently found the full text from the Journal of Nature Physics. While Mr. Bojowald has many papers currently up for review, I believe the precise paper is available on Arxiv.
As Bad Astronomer noted, this isn't the first time something like this has been proposed. I think the first time I read about it was in a book by George Gamov and then subsequent work/proposed theories done by Roger Penrose & the well known Stephen Hawking.
Considering past results of my comments on matters I have little formal education on, I'll won't bother to remark on this work. -
Slight Clarification
I read about this in PhysOrg yesterday and they speak more about something the last paragraph of Scientific American only mentions. The fact that they wouldn't use this enzyme to remove HIV infections but instead to figure out which cells have been infected. The biggest problem in treating HIV is that it can go dormant and undetected for so long during which the host can infect others. It sounds horrible, but even being able to destroy all the cells infected with the virus is worth something though it may often prove fatal to the host. I don't think this is a 'cure' or 'vaccine' merely something that makes HIV treatments much much more effective.
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Re:Confusing signal for causeThe funny thing about all this is that the referred article talks about an area that activates when we detect something that is good for others and the same area activates when we detect something that is good for us. Then again, we have this other information that ties altruism to social-relationship-handling areas of the brain. It looks like many areas of the brain activate on altruism. To settle everything on pleasure seems, to me, simplistic. If it was just that, we wouldn't put ourselves at great risk of or suffer grave injuries to help someone we don't even know: the pain of losing a limb or your life is greater than the reward your altruism provides (at least usually). And yet, again and again we find people taking risks to help someone else.
I'm sorry, the "pleasure response" doesn't quite cut it, IMHO. Oh, by the way, I may have drifted off-topic: my main point of contention was that athloi's references were misinterpreted. You think the researcher reached the wrong conclusion, I don't. It's up to you to prove he did.
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Paper
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Um...
Ok, I admit it. I read the article.
He talks about the dual screen, which is a neat idea and not one I had thought of before. However, he also talks about the small size of the phone, and gives example dimensions in the sketch which seem to show a screen of about 5.3 cm by 5.3 cm. The highest resolution OLED has ever achieved is 200dpi which would result in a resolution of 418x418, and it's more likely that the screen will be the much more common and standard 72dpi with a whopping resolution of 150x150. How exactly is a UI designer supposed to fit the ability to "navigate full-sized pages in desktop mode using an overview window and open tabs to navigate to other pages" in such a small number of pixels?
I love the ideas that are going into this phone, but the engineering reality is that small screens suck for large applications like web browsing. Everyone wants a full QUERTY keyboard, but no one wants a big phone. Everyone wants a giant screen with a ridiculous resolution, but they want it to fit in their pocket, and they don't want any moving parts.
The best compromise might be a pair of Bluetooth eyeglasses that project a virtual screen in front of the user, with the controls on the phone, that can be used for tasks that are more demanding of real estate, like web browsing, reading ebooks, editing documents, viewing pictures, or reading/sending email. A microphone and speaker could even be integrated so the glasses could be used for phone calls as well. With two virtual screens, 3D effects would be possible, and when combined with GPS and accelerometers, could even overlay a HUD on top of the real world. Imagine navigating on the sidewalks of NYC with arrows overlaid in front of your eyes, giving you directions, or walking around a cocktail party letting your facial recognition software (or even Bluetooth identities in other peoples' cell phones) apply a name from your contact list floating above a person's head, MMORPG-style.
The era of squinting at a 150x150 screen to read your email may be coming to a middle. -
The universe, an atomic explosion away
At least mathematically, there are already solutions for accelerating to velocities close to c, without being smashed in the process. It involves getting a boost from an atomic explosion to deploy a large mass. The large mass then generates a gravity field that would pull the spaceship along.
Dr. Franklin Felber has proposed a new antigravity solution that will enable space travel near speed of light by the end of this century, he predicts. http://www.physorg.com/news10789.html/
The math is sound and Dr. Felber is no sci-fi author.
It seems that the only problem left is how to de-accelerate once we get to the our target. -
Re:Absolutely
See El Nino may calm 2006 hurricane season and The 2006 Hurricane Season Was Near Normal for explanations.
The fact that we notice an increasing trend in average global temperatures, and that we know from basic subjects like physics that this increased energy will translate into more severe weather, doesn't mean that we suddenly become perfect weathermen able to predict the next 6 months with perfect accuracy. The failure of a short-term prediction like that has absolutely no bearing on the validity of the global warming phenomenon.
2006 may have been normal, but 2005 was the most active Atlantic hurricane season in recorded history. It doesn't make sense to base decisions about the future of the human race on what amounts to one lucky year. There'll be more lucky years in future, too. But at the same time, the incidence of Katrina-like years, and worse, is going to go up. And that's just one of the effects that will be felt. -
Re:dry powder explanation doesn't work
we had a brief refresher on the process of sublimation before we waded into the polar ice caps.
Maybe you need a refresher on the phase diagram: the average surface pressure on Mars is just about the triple point (0.006 atm), which means that you get liquid water when frost (= pure water) warms up in the valleys. Furthermore, even at lower pressures, ice that sits on a surface and warms up will develop a layer of liquid underneath it, even if the surface sublimates.
Where's a good corroborating source for that
You mean like trying it out perhaps?
Forgive me for being skeptical, but I don't think any reputable source for such a statement exists.
Forgive me for being blunt, but any source that says that liquid water cannot exist anywhere on the surface of Mars is full of shit If you take ice, put it under 0.007 atm and raise the temperature to 0.1 C, the water will go through a liquid phase when melting; this isn't optional. It happens only in some areas and seasons, but it does happen.
Anything that might break through to the surface will immediately freeze and sublimate
Water that "breaks through the surface" probably contains significant impurities, lowering its vapor pressure and melting point, so it will stay liquid under a wider range of conditions. -
Re:Privacy shcmivacy
What country has sane gun laws? Japan? Australia?
If you care do do a bit of research you'd find that Australian gun laws changed after the Port Arthur Massacre, and semi-automatic weapons were banned. The results? No mass shootings since 1995.
http://www.smh.com.au/news/national/gun-deaths-in- rapid-decline-since-buyback/2006/12/13/11656857524 21.html
http://www.cbc.ca/world/story/2006/12/14/australia -gun.html
http://injuryprevention.bmj.com/cgi/content/short/ 12/6/365
http://www.physorg.com/news85298565.html
Now while it is true there's been an increase in armed robberies in Australia in the last 11 years, it must be remembered that it has always been illegal to carry handguns here, so there has never been the deterrent of an armed citizenry; the change in laws had absolutely no effect in that regard. -
Re:Losses?
A little more searching at http://physorg.com/ reveals the tech works on using coupled resonanance--it seems the non-radiative magnetic field remains largely bound to the transmitter, unless it interfaces with the receiver. There was a mention of room-size distances still being sufficient to power a laptop.
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Re:Cancer..
Just use it to power a microwave and make some curry! http://www.physorg.com/news5098.html
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Re:Bit O' Trolling
The whole kitten caboodle is fuzzy.
Actually, it's 'whole kit and caboodle'. No biggie.
It isn't just controversial, it's outmoded.
From your own cite: "Surely a tree is the right model for most multi-cellular animals and plants," Doolittle explained... So, again... how come the genetic and phylogeny trees match up so well?
So your point is that now you're changing your argument?
I said "a similar 'pinch point'". The cheetahs were just shy of being wiped out. Down to (a minimum of) 5,000 reproducing females is low, but at least an order of magnitude (and possibly two orders) larger than the cheetahs. And the cheetah population was a couple orders of magnitude larger than the supposed human pinch point described in Genesis (eight people total, four reproducing females at most). (The tradition in Islam's a bit better, that there were ~80 people on board, but still everyone's supposedly descended from Noah's three sons.) That's not "similar". I'll grant that there was a pinch point, though.
[Human immunological diversity] has less to do with a difference in the number breeding pairs there were and everything to do with their adapability to the environment.
Okay, then, can you explain in detail how human adaptability to the environment - compared to the cheetah, a similarly-sized mammal - creates genetic diversity in the major histocompatibility complex? I'd be fascinated. It's not like cheetahs have an entirely different immune system, like plants or whatever.
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Re:Bit O' Trolling
You might want to hip yourself to isochron dating before you suggest that there's any rationally perceptible chance that the age is off by six orders of magnitude.
And yet again, you force words in my mouth that were not spoken. WHEN did I suggest that there is a serious chance that the age is off by six orders of magnitude? Quote me. Specifically, where did I say it?
It seems to me that you are simply hearing what you want to hear. And THAT is how you are forcing a confrontation when none exists.Ah, and here's the real meat - you don't want that to be true. Your use of the term 'macroevolution' is a revealing code word.
Oooo. A "codeword". Explains everything, doesn't it? (Excuse me while I roll my eyes.)
But as to evolution after the origin of life - Why is it that the genomes of all life, when compared, form a nested tree where branches and mutations can be traced in detail and with quite rare ambiguity, and by remarkable coincidence that tree matches up essentially perfectly with the independently generated (indeed, generated before genetics) "tree of life" based on physical classification?
And here we see that you have no idea what you're really talking about, but you're going to defend it to the end, anyway. From the tree of life website:
The rooting of the Tree of Life, and the relationships of the major lineages, are controversial. The monophyly of Archaea is uncertain, and recent evidence for ancient lateral transfers of genes indicates that a highly complex model is needed to adequately represent the phylogenetic relationships among the major lineages of Life. We hope to provide a comprehensive discussion of these issues on this page soon. For the time being, please refer to the papers listed in the References section.
Darwin's "Tree of life" is not useful to the modern evolutionary scientist, as a variety of new research into the factors that change life (such as recombination, gene loss, duplication, and gene creation are a few of the processes whereby genes can be transferred within and between species) make the concept of the Tree of Life outmoded. More info: http://www.physorg.com/news92912140.html
And even that's silly. Look at cheetahs. They apparently went through a genetic 'pinch point' about 10,000 years ago. Their genetic diversity is so low that they can accept skin grafts from each other without rejection - only one other species is known to be able to do that. If humans went through a similar 'pinch point' anywhere in the last 100,000 years, how come transplant rejection is such a problem?
And again, you demonstrate that you know enough to be dangerous, but not enough to actually know what the hell you're talking about. Here:
Humans have remarkably little genetic diversity, especially in comparison to our closest living relative, the chimpanzee. Indeed, there is substantially more genetic difference among individuals within chimpanzee troops in West Africa than among all living humans on earth. As shown in Figure 1, this is due to a series of bottlenecks in human evolutionary history. Geneticists studying many different parts of the human genome have concluded that the past effective population size (that is, the number of reproducing females) averaged only 10,000 individuals over the last one million years, and was as low as 5,000 around 70,000 years ago. Compare this to the approximately one billion reproducing females alive today, and it becomes clear just how narrow these bottlenecks were.
Hey, I'm not the one forcing the confrontation.
If you'll pardon my crassness, bullshit. You're intentionally forcing an argument because you belive you already understand both sides of the argument, and y
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Brilliant URL. Stuff 'em - slashdotters.
PATHETIC whiners! Let them eat well flamed spam!
//70.87.202.210/videos2/ugc/070520-203657-accident 89675w.wmv JERSEY CRASH:
TURNPIKE THUGS SUE YouTube and all sorts
claiming copyright of taxpayer funded images.
So it's now in DEMAND ... THE MISSING VIDEO. //70.87.202.210/videos2/ugc/070520-203657-accident 89675w.wmv Just one of many BLOGS with more URLs:
http://forum.physorg.com/index.php?showtopic=15199
THE VIDEO: //70.87.202.210/videos2/ugc/070520-203657-accident 89675w.wmv
IF THEY WANT IT SO BADLY ... GIVE IT BACK!
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Re:Blu-ray the winner?
The story I heard was that walmart bought 2 Million HD-DVD players to be sold around $300.
Yeah, apparently you missed the debunking of that rumor.
Fuh Yuan, who originated the rumor, also issued their own retraction. This was not even a "no comment" by either side, it was a full on "this story is not true" by both Wal-Mart and Fuh Yuan.
Don't believe everything you read on the internet, guys. -
Re:Good thinking
It doesn't need to be impossible. It just needs to take longer than the expected lifetime of the universe.
And how long is that exactly?
Yes, it would take the expected lifetime of the universe, if technology and research stood still from this point forward! -
Arr, Matey...
http://www.physorg.com/newman/gfx/news/woodall-hy
d rogen3.jpg Thar's Gold In them Waters! -
Re:How?
Finally someone who understands that this is not simply a "supply and demand" equation like the 60 second "news" stories tell us. Oil and gasoline are publicly traded commodities, and their prices are subject to those who buy and sell them long before retail. I was not able to find an online transcript, but during this discussion on C-SPAN, http://fora.tv/fora/showthread.php?t=965, Forbes and Pickens agreed that the speculative trading in oil and gasoline was responsible for the current increase in increase in the price of crude oil and gasoline, not supply and demand. In short, if it were not for traders running up the price, like stock at an IPO of a new "hot" tech company, oil would be around $40-$50 per barrel.
Whether the discussion is about the price of gas and telecommuters or global warming, there are always posts about how we should use mass transit, walk, or bicycle, instead of a using a personal motor vehicle. Now, I absolutely believe that we humans do affect the climate with our machines. The fact that the temperature variation was 2 degrees Fahrenheit greater in the days after Sept. 11 2001, when all civilian and commercial air traffic was grounded, http://www.physorg.com/news8899.html, I think absolutely proves that we do affect the climate.
The price of gasoline, and the voiced changes planned to prevent global warming both impact the same function in our lives, transportation. Whether we move food stuffs, goods, or people, we pay at the pump and with the climate. Would you like to take a bus on vacation, with your schedule dictated by consensus of the other groups on the bus? Have you gone grocery shopping on a bus or train, and if so, with children? Public mass transit places serious limitations on your ability to move from place to place.
I have no idea of the math/efficiency, but how cleanly would we generate electricity, enough to power all of our transportation needs? Would all electric vehicles, even just in the urban areas, be enough of an improvement to offset their inconvenience? Remember, we're thinking globally, not just in the immediate area. Whether coal, oil shale, natural gas, or hydroelectric is used to generate the electricity, it all impacts the environment. The transmission of electricity to the charging stations for each vehicle also has an impact (installation, maintenance, inspection, transmission).
The solution is a source of energy for our machines that is more efficient than electricity. Once again, it will be an egotistical nerd who will come up with the answer.
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Actual press releaseAlthough this thread is old, here is the NASA press release.
Here is another article on the subject.
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Re:Can bacteria survive the re-entry temperature?
Yes, several experiments with living contents survived the Columbia crash, including several simple cans full of nematode worms that survived 2300G impacts. Consider that the most likely sterilizing agent will be heat, and the fragments will, as you say, be going much faster than Columbia was: the heat on the leading edge extremely high (vaporizing) but the heat in crevices much lower because of the thermal conductivity of the material. If it's going fast and makes it to ground without burning up, they're more likely to survive than when it's on an initially surviveable glide path.
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Re:In order to help technology progress
You could help make leaps and bounds in neuroscience. http://www.physorg.com/news4703.html
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Re:head scratching
You seem to not be paying much attention to what's happening in astrophysics right now
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From http://www.physorg.com/news97326842.html:
"there is another major downside of a lower oxygen abundance. Models of the solar interior once predicted that sound waves in the Sun traveled at certain speed, a value that agreed well with the measured speed. Because the speed depends on composition, this is another way that scientists learn about the processes that take place in the Sun, what elements it is made of, and in what quantities. Now, with the Sun having half as much oxygen, carbon, nitrogen, and neon, the sound speed derived from the models doesn't match the measured speed well. "Exactly what this means is not very clear, but it casts doubt on the correctness or at least the accuracy of models of stellar interiors, which are a cornerstone of modern astrophysics," he said. -
Re:Bendable screens
For bendable LCD screens, look at this article ( http://www.physorg.com/news5142.html ).
1. This is not true. If you have a LG, Samsung, Motorola cell phone, then you are using the current technology, OLED (organic LEDs). Please look-up Samsung. On the "open market," Samsung has released their OLED screens (2005; http://www.physorg.com/news5318.html). A possible outcome for the technology presented here is increasing the number of pixels/cm, smaller screen devices.
2. See item before, cell phones uses lithium batteries that last for about 2-6 hours depending on type of OLED screen. The next generation will use even less energy and possibly last for 8-12 hours, see Samsung.
3. Yes, see item 1.
4. No, see item 1. -
Re:Bendable screens
For bendable LCD screens, look at this article ( http://www.physorg.com/news5142.html ).
1. This is not true. If you have a LG, Samsung, Motorola cell phone, then you are using the current technology, OLED (organic LEDs). Please look-up Samsung. On the "open market," Samsung has released their OLED screens (2005; http://www.physorg.com/news5318.html). A possible outcome for the technology presented here is increasing the number of pixels/cm, smaller screen devices.
2. See item before, cell phones uses lithium batteries that last for about 2-6 hours depending on type of OLED screen. The next generation will use even less energy and possibly last for 8-12 hours, see Samsung.
3. Yes, see item 1.
4. No, see item 1. -
Re:No scientific evidence, huh?
I don't see any articles that you've mentioned that look to be anything more than anecdotal arguments. A student or teacher's perception is hardly useful for anything more than suggesting that further study is warranted. The only way to draw conclusions about this sort of thing is with solid statistical evidence that gamers are more likely than the general public to be violent, of which I have never seen. There is, however, evidence to the contrary. You also haven't stated what journals these articles appear in. Not all journals are created equally. Many are somewhat less than neutral on certain topics.
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Re:How about LEDs then
I'm not sure where you got your numbers from, but LEDs have made some major leaps and bounds in the past few years. CREE claims 50-80 lumens/watt in their production power LEDs http://www.cree.com/products/xlamp.asp, and as high as 100 with experimental designs.
Osram recently announced a 1000 lumen LED (really 6 LED dies packed into one device) that will be sent to market this summer. http://www.physorg.com/news93198212.html -
Here's a much better written article
Here's a much better article. That blog submitted by the op was cut and pasted rather poorly.
Innervation is the key to making this stuff work right. If they can hook up enough sensory and motor nerves to these prosthetic limbs, they will come to feel like a part of the body, though the nervous system may need to adjust itself a bit.
I would expect that the ultimate solution will be a biological limb grown from the patient's own stem cells. Nerve hook-up will still be a major issue, because we don't yet know how to repair severed axons, but perhaps stem cells will take care of that issue as well. Goodbye, paralysis and multiple sclerosis and Lou Gehrig's Disease! -
doesn't matter, both companies are screwed
doesn't matter, both companies are screwed
http://www.physorg.com/news93863377.html
remember this article? I hope both companies are forced to drop further. -
Re:Dewey B. Larson?
Yes, Larson's model was 6-dimensional: a 3-D space with a reciprocally related 3-D time. However, it involved some novel concepts like "scalar motion" and was based on Euclidean geometry. In Larson's system, "directions" are primarily magnitudes (scalar quantities), not our notion of vectors.
Here's a collection of multi-dimensional time theories:
http://forum.physorg.com/index.php?showtopic=5522 -
Re:Nuclear Sense of Smell vindicated?
Maybe this is what you're looking for: http://www.physorg.com/news89542035.html
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3d chip design breakthrough?
Geniune(r) Experts of slashdot,if may i ask to u, what is difference between samsung's 3d chip design and ibm's?
news on samsung's breakthrough...http://www.physorg.com/news8083824
5 .html/--
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Re:Source of protein
For the most part, it has long been assumed that all dinosaur fossils had little to no organic material inside them. However, there was an incident, something like a year ago, when they couldn't fit a particularly large T-rex bone inside a helicopter, and cut it instead. They noticed that the fossil still had a bit of give on the inside and it looked like fresh tissue. A new study was initiated, and they dissolved the mineralized portion of the bone (and of others). What was left was the springy organic material -- even blood vessels were intact. They were not only able to study the proteins, but they were even able to tell that one of the dinosaurs studied was a brooding female.
Organic preservation like this is still believed to be a rare phenominon, but I'd expect many more ancient fossils to be inspected for organic remains from now on. Too bad DNA is as unstable in the long term as it is, though. -
Fog screen display on SeaQuest DSV
In the tv series SeaQuest DSV they had a real 'holographic' display in the captain's quarters, a very simple process that looked pretty neat, a wide, thin jet of what looks like dry ice is sprayed downwards whilst an image is projected onto the 'virtual' screen of fog - SeaQuest Hologram jpg
A company has already produced a similar display which looks much clearer than the SeaQuest one: http://www.physorg.com/news2591.html -
Comcast Weans Hogs Off Their Packet Teat
I don't mind paying for what I use, but I'm looking for a list of cable and DSL providers that won't leave you high and dry like Comcast does if you go over the official or unofficial limits.
Well, since it's highly unlikely my similar story I submitted this morning will be accepted after this is the on the front page, I'll just submit it to Slashdot as a comment.
The telecommunications giant Comcast has severed its services to internet hogs who use more bandwidth than others. From the article,Carreiro said he received a message from a Comcast Security Assurance representative in December, who warned him that he was hogging too much of the company's bandwidth and needed to cut down. When Carreiro contacted customer service about the call, they had no idea what he was talking about and suggested it was a prank phone call. Unconvinced, Carreiro contacted Comcast several more times, but was again told there was no problem. A month later, he woke up to a dead Internet connection. Customer service directed him to the Security Assurance division, which Carreiro said informed him he would now be without service for one year.
This is quite alarming to me, considering that I am forced into using a particular ISP based on some deal my neighborhood made many years before I moved here.
And, if I may elaborate, I feel I am a hog though I have never ever been threatened with this action before. What interests me is that they have my bandwidth capped and even that cap seems to fluctuate with how much my neighborhood is using. But, I'm pretty sure that the cable modem I have is physically capped at a low level because I've read stories of people uncapping them and being pretty much black listed. If that's what these "hogs" are doing, then I have little sympathy for them. The only time I had an uncapped connection was when I was in Bailey Hall at the University of Minnesota my freshman year. They had just installed ethernet and I soon discovered that they trusted me a little more than they should have. An unproductive dumbass freshman with a bass amp/speaker combo, a computer, a modded dreamcast and an uncapped connection to mIRC/morpheus/gnutella/etc made for some interesting nights ... rest assured that rooms adjacent to N410 knew the 8 bit emulated glory of contra theme song as I destroyed Red Falcon night after night.
Back to the topic, though, I have often used BitTorrent while playing World of Warcraft and using Ventrillo with no problems. Me and my roommates pay for the highest upload/download rates but, as I've said before, we never get close to those numbers.
Here's a better question, how does your ISP handle telephone calls by unsatisfied customers who complain that in the middle of the day using a third party site, their bandwidth is pinched FAR BELOW what they've been paying for? In my case, as a current customer of Cox, I can speak from first hand experience that those calls go largely unnoticed--although I've had different results from different providers at different locations. -
Re:what happened to hydrogen?
Happens that is very inefficient.
According to Ulf Bossel, fuel cells researcher, if you take into account all the conversion efficiencies of the process, hydrogen may not make sense as an energy storage solution. LINK: http://www.physorg.com/news85074285.html -
Re:Summary is misleading...
A Fender? Not likely, it looks more like a B.C. Rich, if anything. Didn't check out the Flying V.
I was disappointed the article didn't mention this IBM effort. Another IBM logo, but the whole thing is 3.3 x 8.8 nm. Still not as small as Hitachi's, but smaller than the other IBM logo they cited. They used an atomic force microscope, which is one of the cooler-sounding lab instruments... -
Stable structure found in lab fluid experiment
Anyone see a similarity between to this observed effect? http://www.physorg.com/news66924222.html