Ever Read Hyperion,
by Simmons? In that story, the earth was accidentally destroyed by a man-made black hole. We are now one step
closer. Physicists may have created a black hole in a lab at the RHIC (Relativistic Heavy Ion Collider
). H. Nastase has posted a paper
on the possibility. Fascinating discovery, but there's no real danger of destroying the earth. This might be a good time to check up on some of the myths
surrounding black holes. (Found via that other site, /.
posted by teece
on Mar 17, 2005 -
"A theory that can't predict anything is not a scientific theory," Woit says.
That would be string theory, which was going to be the theory of everything, but apparently can't even agree how many dimensions there are. "Those who dabble in alternate-universe speculations might be just modern versions of '16th century theologians (who) speculated that spirits and angels emerge from the extra-dimensional universe,' says Krauss
, who is also an outspoken foe of creationist teaching in schools."
posted by raaka
on Mar 16, 2005 -
When an UT Austin student finds a stash of graded freshman physics homework
, he decides to pitch in and add his own comments to those of the TA. Our children is might not be learning, but at least they're getting to play with lasers!
posted by robocop is bleeding
on Feb 9, 2005 -
- follow physicists from around the world as they experience the World Year of Physics 2005.
posted by Gyan
on Feb 1, 2005 -
Does relativity have any practical significance? In fact, relativity had to be taken into account
by the designers of the Global Positioning System. The GPS satellites are affected both by special relativity
(since the satellites are moving, clocks aboard them appear to run slower as seen from the ground), and by general relativity
(since the satellites are farther away from the mass of the earth, clocks appear to run faster as seen from the ground). The net effect of both is that clocks aboard GPS satellites would gain 38 microseconds per day relative to the ground, if relativistic effects were not corrected for--a figure which can be confirmed by using Google calculator
posted by DevilsAdvocate
on Nov 30, 2004 -
The physicist Shariah Afshar has used a beautifully simple experiment
, which no-one seems to have thought of before, to disprove Bohr's principle of complementarity
, something which has been pretty much unchallenged for 80 years. He may also have gone some way towards showing that there is no such thing as a photon, and that Einstein's Nobel prize should be revoked. So, big stuff. What do you physicists think?
posted by Pretty_Generic
on Jul 29, 2004 -
Getting back into the groove
: In the corner of a California university laboratory, two men are battling against time to perfect a machine that will read old recordings - using special microscopes to scan the grooves - and software that can convert those shapes into sound. Their work could bring history to life.
posted by starscream
on Jul 26, 2004 -
The Matthew effect "It was Merton who identified and named the tendency always to assign exclusive scientific credit to the most eminent among all the plausible candidates. At least I hope it was he, though I'm sure Merton, who invented many wonderful jokes himself, would have been delighted if the credit for it turned out to be misattributed to him."
Or is this called the flypaper effect
? The question remains: Who popularized the phrase 'Shut up and Calculate!'
posted by vacapinta
on May 15, 2004 -
Time to replace your old Periodic Table. ...a joint American-Russian team has found two new elements—numbers 113 and 115 on the periodic table—hinting at an impending breakthrough in creating novel forms of matter that will test our understanding of atomic behavior.
posted by mcgraw
on Mar 29, 2004 -
Jaron Lanier talks
about philosophy, computer science and physics. Suppose poor old Shroedinger's Cat has survived all the quantum observation experiments but still has a taste for more brushes with death. We could oblige it by attaching the cat-killing box to our camera. So long as the camera can recognize an apple in front of it, the cat lives.
posted by kliuless
on Nov 20, 2003 -
The elegant universe.
A 3 hour PBS NOVA documentary on string theory [in 24 ~5-10 minute chunks of real player or quick time video]. Welcome to the 11th dimension.
posted by srboisvert
on Nov 14, 2003 -