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1 day ago · Astronomy. Photons are odd little beasts. They can act like waves. They can act like particles. They are teeny tiny messengers of force. They are carriers of energy. But most of all, they’re ...
1 day ago · The first is quantum field theory, which is a synthesis of many key developments in physics: quantum mechanics, which describes how microscopic particles behave, classical field theory, which describes how long-range forces can permeate space, and special relativity, which revises Newtonian mechanics and our notion of space and time to account for the constancy of the speed of light.
2 days ago · The speed of light isn’t just a random number; it’s a fundamental property of the universe. It’s the speed at which light travels through a vacuum, and it’s roughly 299,792,458 meters per second. That’s about 186,282 miles per second! Why is the Speed of Light Important? The speed of light is more than just a fast number.
3 days ago · At the Department of Nuclear Science and Engineering, the third-year doctoral student studies various facets of astrophysically relevant fundamental plasma physics under the supervision of Professor Jack Hare. It’s an area of research that Varnish arrived at organically. Thomas Varnish: Studying plasma behavior in the context of astrophysical ...
4 days ago · Optics. Can light go backwards? Researchers push the limits of our understanding of light. Also see amazing new applications of light energy. Full-text, images, free.
3 days ago · LED, in electronics, a semiconductor device that emits infrared or visible light when charged with an electric current. Visible LEDs are used in many electronic devices as indicator lamps, in automobiles as rear-window and brake lights, and on billboards and signs as alphanumeric displays or even.
4 days ago · For nearly 50 years, physicists have dreamed of the secrets they could unlock by raising the energy state of an atom's nucleus using a laser. The achievement would allow today's atomic clocks to ...
