Physics
Physics Classroom
For One Tiny Instant, Physicists May Have Broken a Law of Nature
This image of a full-energy collision between gold ions shows the paths taken by thousands of subatomic particles produced during the impact. For a brief instant, it appears, scientists at Brookhaven National Laboratory on Long Island recently discovered a law of nature had been broken. Action still resulted in an equal and opposite reaction, gravity kept the Earth circling the Sun, and conservation of energy remained intact.
How Quantum Suicide Works"
A man sits down before a gun , which is pointed at his head. This is no ordinary gun; it's rigged to a machine that measures the spin of a quantum particle . Each time the trigger is pulled, the spin of the quantum particle -- or quark -- is measured.