Science

Washing Your Hands Leads to Asthma, Says Science (Well, Sort Of)
Visit NBCNews.com for breaking news, world news, and news about the economy Most of us have been taught that cleanliness is the best way to ensure good health. But experts now say that excessive use of things like hand sanitizer and anti-bacterial soap may be responsible for an increase in allergies and asthma among kids.
Thirty Two Metronomes Sync Up Over Time In Video
If you've ever played an instrument, you're probably familiar with the humble metronome. Back and forth, back and forth... but have you ever wondered what it would take to get more than one clicking in sync? Turns out, even with a lot of them, all you really have to do is wait.
Watch 32 Metronomes Sync Up (It’s Science!)
We realize asking people to stare at a bunch of out-of-sync metronomes is kind of a hard sell, but this is actually really cool. For a while it seems like it's not going to happen, then, magically (note: technically physics, not magic), they do. Here's why.
College Professor Sets Off Ping-Pong Ball Explosion
Dr. Roy Lowry wanted to demonstrate a few basic principles of science, notably the behavior of liquid nitrogen under pressure. But how to get that across in a way that even the least scientifically curious student would think of as awesome. Easy: Just add ping-pong balls!