If Einstein Had Never Been Born, Would We Still Have Nuclear Weapons?

Albert Einstein and his equation E=mc² are famously connected to the modern atomic age. But as nuclear historian Alex Wellerstein writes in this counterfactual account of history, the great physicist mattered less than you'd think in the invention of the nuclear bomb. » 6/28/14 9:00am 6/28/14 9:00am

Astronomers Discover First Direct Proof of the Big Bang Expansion

Somebody's going to win a Nobel Prize. At least that's what the physics community is saying after the announcement on Monday that a Harvard team has found the first direct evidence of cosmic inflation right after the Big Bang. It's more proof that the Big Bang really was the beginning of it all. » 3/17/14 12:20pm 3/17/14 12:20pm

NASA Gravity Experiment Proves Einstein Was Right

Like a beach chair sagging under a sunbather's weight, the fabric of spacetime does indeed warp around the mass of the Earth - just as Albert Einstein predicted. And like a swimmer moving through the water, the rotation of the Earth affects the movement of spacetime itself. A gravity probe whose origins date to the… » 5/05/11 10:40pm 5/05/11 10:40pm

Einstein's Pedometer App Measures Your Aging (or Lack Thereof)

In case you need a science class reminder, Albert Einstein's Theory of Relativity partly concerned the process of ageing—specifically that a stationary person actually ages faster than someone in motion. Using the iPhone's GPS, along with the Lorentz Transformations, this app will details exactly how much "life"… » 4/08/11 7:00am 4/08/11 7:00am

This Animated Video Simplifies Einstein's Complicated Twin Paradox

Einstein's Twin Paradox is super confusing for me, every time I think I fully understand it, I find more questions. The Twin Paradox is a thought experiment in special relativity when one twin travels to outer space while the other twin stays on Earth. When the space bound twin lands back on Earth, he'll find that… » 2/20/11 4:00pm 2/20/11 4:00pm