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Here's the famous footage of the Apollo 15 astronaut that dropped a hammer & feather on the moon to prove Galileo's theory that in the absence of atmosphere, objects will fall at the same rate regardless of mass.
Via G. Panagiotakopoulos 
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Using biological building blocks found inside a living cell, researchers have created a material that moves itself.
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When you see a tree, a big, tall, heavy one, and you wonder where did it get its mass, its thick trunk, its branches — the instinctive answer would be from the soil below, plus a little water (and, in some mysterious way, sunshine), right?
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The heat-death of the universe need not bring an end to the computing age. A strange device known as a time crystal can theoretically continue to work as a computer even after the universe cools. A new blueprint for such a time crystal brings its construction a step closer.
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In a new paper, researchers hypothesize the existence of mirror particles to explain the anomalous loss of neutrons observed experimentally.
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Batman Physics. EDIT: I didn't expect this post to become popular and result in some smarter people exposing my awful math. So here's a disclaimer: I simplified the scenario, rounding up the g and not taking into account drag ... Via Barzanallana
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From
phys
Physicists have trapped and cooled exotic particles called excitons so effectively that they condensed and cohered to form a giant matter wave.
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Everything you thought you knew about electrostatics is probably wrong. Make two metal spheres positively electrically charged, bring them close together, and what happens? They’ll repel one another, because like charges repel – right? Wrong!
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Astronomers from the University of Bonn in Germany have discovered a vast structure of satellite galaxies and clusters of stars surrounding our Galaxy, stretching out across a million light years. The work challenges the existence of dark matter, part of the standard model for the evolution of the universe. Articles about ASTRONOMY: http://www.scoop.it/t/science-news?tag=astronomy
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From
phys
Physicists have, for the first time, demonstrated in an experiment that the decision whether two particles were in an entangled or in a separable quantum state can be made even after these particles have been measured and may no longer exist. Articles about PHYSICS: http://www.scoop.it/t/science-news?tag=physics
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From
phys
In a new study, Sorli and Fiscaletti have shown that two phenomena of special relativity - time dilation and length contraction - can be better described within the framework of a 3D space with time as the quantity used to measure change (i.e., photon motion) in this space.
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International Space Station Expedition 30 astronaut Don Pettit demonstrates physics in space for 'Science off the Sphere.' Through a partnership between NASA and the American Physical Society you can participate in Pettit's physics challenge and view future experiments here: http://www.physicscentral.com/sots
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The combination of several quantum states that are local can yield a nonlocal state.
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From
phys
Now two physicists – James Hill and Barry Cox from the University of Adelaide in Australia – have shown that Einstein's theory of special relativity can be logically extended to allow for faster-than-light motion. They're quick to point out that their finding in no way contradicts the original theory, but simply provides a new aspect of it. Read more at: http://phys.org/news/2012-10-physicists-special-relativity.html#jCp
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Who's faster over 10 meters - the fastest sprinter in the world, or gravity? Also, explore a map of the big bang! http://www.bigbangregistry.com MinutePhysic...
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![[VIDEO] Quantum Tentacles and Flying Saucers: A Rare Look at Quantum Mechanics in Action | Science News | Scoop.it](https://img.scoop.it/6RBqkmLNYZXzIjs0vdoEBjl72eJkfbmt4t8yenImKBVvK0kTmF0xjctABnaLJIm9)
Α rare macroscopic view of the magical properties of quantum mechanics. Sharing the stage with fellow physicist Brian Green, Almog conducts the first public demonstration of an ethereal phenomenon he calls quantum levitation, sending a thin wafer super-chilled below -301 degrees F zipping around a circular track like a miniature flying saucer.
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An explanation of the image, as taken from Heller Gallery: The Transport series renders electron flow paths in a "two dimensional electron gas" (2DEG), inspired by the experiments of Mark Topinka, Brian Leroy and professor Robert Westervelt of Harvard University.
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From
vimeo
Footscray City College Science Students use the Photron high-speed camera to shoot balloons at 3000 frames per second.
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From
phys
'Tractor beams' of light that pull objects towards them are no longer science fiction. Haifeng Wang at the A*STAR Data Storage Institute and co-workers have now demonstrated how a tractor beam can in fact be realized on a small scale.
olsen jay nelson's comment,
May 27, 2012 12:27 AM
Ah, I should have examined your history more thoroughly than I did, lol!
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A battery powered Tesla coil, in the shape of a rifle. Build details here: http://hackerfriendly.com/the-tesla-gun/ Sparks are quite tricky to film. There is...
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From
phys
As Colbeck and Renner explain in their paper published in Physical Review Letters, there are two prominent interpretations of the wave function dating back to its origins in the 1920s. In one view, the wave function corresponds to an element of reality that objectively exists whether or not an observer is measuring it. In an alternative view, the wave function does not represent reality but instead represents an observer's subjective state of knowledge about some underlying reality.
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From
phys
Researchers from the Complutense University of Madrid (UCM, Spain) have mathematically shown that particles charged in a magnetic field can escape into infinity without ever stopping.
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Here's a practical application for your physics education: using math to successfully beat a traffic ticket in court. Dmitri Krioukov, a physicist based at the University of California San Diego, did just that to avoid paying a fee for (purportedly) running a stop sign.
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I originally made this in 2007.For pictures and CAD info, please see http://www.phys.washington.edu/users/sbtroy/Double_Pendulum/Double_Pendulum.html...
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There has been much debate over the years on whether this footage is real, or was faked in a studio. Decide for yourself!