For centuries, inventors have been pursuing the concept of a perpetual motion machine—a device that generates its own power and, like the Energizer Bunny on TV commercials, keeps “going, and going, and going…” Here are two real-life objects that are doing just that.
One of the harsh realities of life in space is that in an emergency, astronauts may have to live in their spacesuits for days on end. If that ever does happen, how will they go to the bathroom? That’s the question NASA hopes to answer.
You’ve heard the expression “as slow as molasses moving uphill in winter”? Here’s the story of something even slower.
In honor of the handful of humans who have left the planet, here are some stories about the other unique experiences that astronauts have had. Space Gas As part of the Apollo 16 mission in 1972, astronaut John Young became the ninth person to ever walk on the moon. But he’s the first to have […]
It shouldn’t be so pleasurable but it is: That bizarre taste sensation of super-sour and super-sweet that comes with sour candy. Here’s the science behind how candy makes can make things taste so sour. The main supplier of sour kick: citric acid. It’s found in, well, citrus fruits: lemons, grapefruits, limes, and oranges, for example. […]