Website review: Smithsonian Magazine | Science &Nat...
Someone discovered this in Science/Tech
•8 reviews since Jan 22, 2008
science
•smithsonianmag.com/science-nature/phenom-2008...
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Reviews of this website
bonus-level rated 3 months ago- I have to agree with inamorty on this one. Fahrenheit is the stupidest unit ever. It's a bit like Celcius but water freezing and boiling point are 180 degrees apart, and after that let's raise it so we don't have to go negative as much. And miles too. For everyday use, pick Celcius, scientific articles like this should go Kelvin. </rant>
- max2pick rated 6 months ago
- the questions posted are really intriguing to answer...
- alice44 rated 7 months ago
- From the page: The record-breaking lows were among the latest feats of ultracold physics, the laboratory study of matter at temperatures so mind-bogglingly frigid that atoms and even light itself behave in highly unusual ways. Electrical resistance in some elements disappears below about minus 440°F, a phenomenon called superconductivity. At even lower temperatures, some liquefied gases become "superfluids" capable of oozing through walls solid enough to hold any other sort of liquid; they even seem to defy gravity as they creep up, over and out of their containers. Very Interesting
- ashoe27 rated 7 months ago
- From the page: "The speed of light, as we've all heard, is a constant: 186,171 miles per second in a vacuum. But it is different in the real world, outside a vacuum; for instance, light not only bends but also slows ever so slightly when it passes through glass or water. Still, that's nothing compared with what happens when Hau shines a laser beam of light into a BEC: it's like hurling a baseball into a pillow. "First, we got the speed down to that of a bicycle," Hau says. "Now it's at a crawl, and we can actually stop itâ€"keep light bottled up entirely inside the BEC, look at it, play with it and then release it when we're ready."" Good grief, that's amazing!!
- inamorty rated 7 months ago
- SI units ftw
- neutrinos rated 7 months ago
- Slightly dated =)
- lebrewski rated 7 months ago
- From the page: "Where's the coldest spot in the universe? Not on the moon, where the temperature plunges to a mere minus 378 Fahrenheit. Not even in deepest outer space, which has an estimated background temperature of about minus 455°F. As far as scientists can tell, the lowest temperatures ever attained were recently observed right here on earth. The record-breaking lows were among the latest feats of ultracold physics, the laboratory study of matter at temperatures so mind-bogglingly frigid that atoms and even light itself behave in highly unusual ways. Electrical resistance in some elements disappears below about minus 440°F, a phenomenon called superconductivity. At even lower temperatures, some liquefied gases become "superfluids" capable of oozing through walls solid enough to hold any other sort of liquid; they even seem to defy gravity as they creep up, over and out of their containers. "
- profoundmusing rated 8 months ago
- It might seem that absolute zero is worth trying to attain, but Ketterle says he knows better. "We're not trying," he says. "Where we are is cold enough for our experiments." It's simply not worth the trouble--not to mention, according to physicists' understanding of heat and the laws of thermodynamics, impossible. "To suck out all the energy, every last bit of it, and achieve zero energy and absolute zero--that would take the age of the universe to accomplish."
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