If the internet has one positive attribute, it’s that it connects people: coworkers building the future together; families living on opposite sides of the world; future lovers flirting over instantaneous chat programs; and, late last week, Slipknot frontman Corey Taylor and me.
The Earth is a round orb, almost four thousand miles in radius, orbiting a star alongside some other orbs of varying sizes. We’ve taken pictures of it. But some folks don’t believe any evidence presented to them by a government agency. Many have come to the conclusion that the Earth is actually flat.
Holding your breath may not be the flashiest feat of athleticism, but performing it at its highest level is still incredibly impressive, especially since it's something we've all done, and can all relate to. The limits to which some can push breath control, in fact, are more impressive than most people probably know.
Here's the latest entry in our "ask the physicist" series. How do you find out if Schrodinger's Cat is alive or dead, for real?
One of the most popular questions from our "ask a physicist" feature was, "What happens if you're driving at the speed of light and you turn on your headlights?" The simple answer: You can't. So quit trying.
Last week the readers of io9 asked their most nagging questions about physics to a real-live physicist. The first question: What is the Universe expanding into?
This weekend you can ask a real, live physicist (me) any question you like - nothing is too stupid, or too weird. And next week, you'll get answers!