At Long Last, Mathematical Proof That Black Holes Are Stable
[ad_1] In 1963, the mathematician Roy Kerr found a solution to Einstein’s equations that precisely described the spacetime outside what we now call a rotating black hole. (The term wouldn’t…
Particle Physicists Puzzle Over a New Duality
[ad_1] Once found, these inscrutable rules have helped particle physicists calculate scattering amplitudes at much higher levels of precision than they could achieve with the traditional approach. The restructuring also…
What an iPhone Lidar Can Show About the Speed of Light
[ad_1] But since this uses the total time of flight for the ball, it gives the total distance the ball traveled—to the wall and back. If you take that distance…
A Minimalist Approach to the Hunt for Dark Matter
[ad_1] In particular, Antypas’ team uses their experiment to search for a class of dark matter known as ultralight dark matter. At its heaviest, an ultralight dark matter particle is…
How to Simulate Walking on the Moon—Without Leaving the Planet
[ad_1] Even if the magnitude of the gravitational force and the buoyancy force were equal, having a different location for the center of mass and buoyancy will mean the object…
NASA Delayed the Psyche Launch. Here’s Why That’s a Big Deal
[ad_1] NASA and the Psyche team declined interview requests until an independent review of the mission delay has been completed. Agency officials will make a decision about next steps based…
How Much Power Does Batman Need for His Ascender Gun?
[ad_1] Everyone has the same comment about Batman: He’s cool because he’s just a normal dude, but he’s also a superhero. It’s true, he doesn’t have superpowers. However, what he…