See also stories tagged with Friction
Search results for friction
Inventor Doesn't Dare Say 'Perpetual Motion Machine'
Feb 07, 2008 |
4.4 / 5 (264) |
52
Thane Heins knows the track record of inventors that claim to make breakthroughs in power generation methods, especially when they claim to defy the second law of thermodynamics. Every so often, a (usually ...
Probing Question: Are there upper and lower limits to temperature?
Jun 07, 2007 |
4.5 / 5 (108) |
0
Most people have heard absolute zero described as the lowest possible temperature, but what does that mean? Is it really the coldest cold, or just the lowest temperature that we can measure? Is there a corresponding ...
Liquid Mirror Telescopes on the Moon
Space & Earth / Space Exploration
Oct 09, 2008 |
4.6 / 5 (86) |
14
A team of internationally renowned astronomers and opticians may have found a way to make "unbelievably large" telescopes on the Moon.
Experiment to Clarify Ancient Physics Discovery Yields More Questions
Aug 28, 2007 |
4.5 / 5 (84) |
0
In approximately 600 B.C., the Greek philosopher Thales of Miletos discovered that rubbing certain materials together, such as amber and wool, can cause both to become electrically charged, one positive and one negative. ...
Scientist float levitation theory
Aug 06, 2007 |
4.6 / 5 (77) |
0
St Andrews scientists have discovered a new way of levitating tiny objects - paving the way for future applications in nanotechnology.
Carbon Nanotube Windmills Powered by 'Electron Wind'
Jul 08, 2008 |
4.7 / 5 (65) |
12
Theoretical physicists from Lancaster University in the UK have designed a nanomotor that operates by a novel mechanism: an electron wind.
Another piece in the dark matter puzzle
Oct 05, 2007 |
4.1 / 5 (73) |
11
Most scientists agree that most of the matter in the universe is dark. Dark matter, which is undetectable through direct observation, can only be inferred because of its effects on the matter that we can see.
Can expert reasoning be taught?
Feb 09, 2007 |
4.5 / 5 (63) |
0
In addition to mastering a large body of knowledge, successful researchers must acquire a host of high-level cognitive skills: critical thinking, "framing" a problem, ongoing evaluation of the solution as it ...
Dark Energy And The Inverse Square Law
Jan 25, 2007 |
4.5 / 5 (61) |
0
“Newton’s inverse-square law has been around for a while,” Daniel Kapner tells PhysOrg.com. “But, by testing this law, we’re looking for new physics.” The new physics Kapner and his colleagues are looking for in their recent ...
Nano-boric acid makes motor oil more slippery
Aug 06, 2007 |
4.7 / 5 (57) |
0
One key to saving the environment, improving our economy and reducing our dependence on foreign oil might just be sitting in your mother's medicine cabinet.
Theory of Physics Explains Human Patterns
Jun 12, 2007 |
4.5 / 5 (60) |
0
Why does a railway network look like a river? Why do the streets of old Rome look like a leaf? Because whether their shape is determined by the interactions of molecules or the choices made by individual humans, all of these ...
NASA to Attempt Historic Solar Sail Deployment
Space & Earth / Space Exploration
Jun 27, 2008 |
4.3 / 5 (54) |
12
"Hold your hands out to the sun. What do you feel? Heat, of course. But there's pressure as well – though you've never noticed it, because it's so tiny. Over the area of your hands, it only comes to about a millionth of an ...
Superconductor magnet spacecraft heat shield being developed
Nov 26, 2009 |
4.8 / 5 (44) |
28
(PhysOrg.com) -- European space agencies and an aerospace giant are developing a new re-entry heat shield that will use superconductor magnets to generate a magnetic field strong enough to deflect the superhot ...
Microswimmer propels itself with near-zero friction
Jun 04, 2007 |
4.5 / 5 (47) |
0
Scientists have found that a very slender micro-sized swimmer can propel itself without friction by surface treadmilling. The microswimmer moves by generating backward surface motion at the front end of itself, which is then ...
Scientist answers how Peruvian meteorite made it to Earth
Space & Earth / Space Exploration
Mar 11, 2008 |
4.2 / 5 (46) |
7
It made news around the world: On Sept. 15, 2007, an object hurtled through the sky and crashed into the Peruvian countryside. Scientists dispatched to the site near the village of Carancas found a gaping ...
