The world's largest oyster is nearly 14 inches long and resides in Denmark, according to the folks at Guinness World Records. And it's still alive and growing, according to Christine Ditlefsen, the biologist at the Wadden Sea Centre whose world record was recently certified.
The oyster was found in October in Wadden Sea National Park, a shallow area off of the North Sea on Denmark's southwestern coast. Its size and shape could be said to resemble a huge plaintain. But when they found it, the Wadden staff compared the oyster to a large and sturdy shoe.
Why does thunder rumble? Acoustic professor Trevor Cox explains that it has to do with the way lightning is a jagged line. "Each little kink is actually generating the sound, and the reason thunder rumbles is because the sound takes different time to come from different kinks because they're all slightly different distances from you," he says.
Ever wonder why your voice sounds so much better when you sing in the shower? It has to do with an acoustic "blur" called reverberation. From classical to pop music, reverberation "makes music sound nicer," acoustic engineer Trevor Cox tells Fresh Air's Terry Gross. It helps blend the sound, "but you don't want too much," he warns.
Originally published on Thu February 20, 2014 1:26 pm
The more you sit, the less physically active you are, which can lead to all sorts of health problems, including an early death.
But too much sitting increasingly looks like a health risk all its own. Researchers at Northwestern University say that for people 60 and older, each additional hour a day spent sitting increases the risk of becoming physically disabled by about 50 percent — no matter how much exercise they get.
The other day, I wrote a post about a cartoonist, Connie Sun, and her thoughts about animals. Her mom heard about it, and called Connie to say "Yea!" and then, because she's an honest woman, she asked, "What is NPR?" Here's what happened next:
I have this conversation all the time. So many people are not aware that NPR writes things, "posts" things. But we are spreading the word. (Going from "What is NPR?" to "NPR is blogs?" — that's progress, I think. No?)