News tagged with physical laws

Making quantum cryptography truly secure

Quantum key distribution (QKD) is an advanced tool for secure computer-based interactions, providing confidential communication between two remote parties by enabling them to construct a shared secret key ...

Jun 14, 2011
5 / 5 (1) 1 | with audio podcast

The physics of animation

From drawings to computer animation, the magic of cartoon movies allows audiences to explore a fantastical and imaginary world. To make animated characters life-like on the big-screen, the laws of physics ...

Jun 14, 2011
5 / 5 (4) 1

For computer chip builders, only one way to go: Up

In the race to build a faster computer chip, there is literally nowhere to go but up. Today's chip surfaces are packed with the tiniest electronic switches the laws of physics allow, but Intel Corp. says it ...

May 05, 2011
5 / 5 (8) 8

Physicists study mechanics of 'crackling'

(PhysOrg.com) -- Everywhere around us, things "crackle" -- from Rice Krispies in a puddle of milk, to crumpled pieces of paper, to the Earth's crust from earthquakes. Physics is helping us understand what this familiar noise ...

Jan 27, 2011
4 / 5 (4) 0 | with audio podcast

Best yet test of Lorentz invariance

The more crucial a physical law is, the more important it is to keep testing it. One of the most important laws formulated in the last century or so is Albert Einsteinэs principle of invariance, which says that there ...

Oct 25, 2010
4.9 / 5 (15) 17 | with audio podcast

Bringing down the electric grid

Last March, the U.S. Congress heard testimony about a scientific study in the journal Safety Science. A military analyst worried that the paper presented a model of how an attack on a small, unimportant part o ...

Oct 12, 2010
4 / 5 (10) 12 | with audio podcast

Tiny generators turn waste heat into power

The second law of thermodynamics is a big hit with the beret-wearing college crowd because of its implicit existential crunch. The tendency of a closed systems to become increasingly disordered if no energy is added or removed ...

Sep 28, 2010
4.5 / 5 (10) 2 | with audio podcast