Killjoy physicists have long pointed out the sheer unlikelihood of building a working light saber. But now, they’ve taken a small step toward realizing the dream of Star Wars fans worldwide, by figuring out how to get photons to stick together like molecules in a super-chilled gas.
Normally, light zips through a vacuum at a blazing 186,282 miles per second. But as a new experiment by Scottish physicists has shown, this isn't always necessarily the case.
Back in 1934, a team of physicists came up with an idea for how one might create matter from light. Put simply, just slam two photons into each other to get an electron and a positron, a.k.a. matter. And now, some 80 years later, a team of physicists have a plan to carry out the experiment in real life.
Ever since the late 17th century, it's been understood that to every action there is an equal and opposite reaction. That's Newton's Third Law of Motion. But a group of German scientists recently came up with a trick that appears to break that law, one that lets light accelerate all by itself. And it could bring us…
Everyone knows that quantum physics is weird—but it just got weirder. Because a team of scientists from the University of Jerusalem have used quantum entanglement to allow two photons that never existed at the same time to communicate with each other.
First you're taught that light is wave. Then you get a little older and your teacher explains that it's actually particles called photons. Wait, which is it then? Particles? Waves? Both? Neither? This video should help explain.
This is the entire view sky as seen from Earth, taken by the Planck observatory during a whole year. In the center, the microwave radiation of our galaxy, the Milky Way. But that's not the important part.
I don't understand quantum mechanics. Physicists don't even really understand it. But somehow, information was successfully teleported over a full meter, which means we're that much closer to making Star Trek a dorktastic reality.