This is SCIENCE FRIDAY. I'm Ira Flatow. You've probably heard of your distant cousins the Neanderthals, but how about a more secretive member of the family tree, the Denisovans? Yeah, ring a bell? No? That's because traces of Denisovans are hard to come by.
This is SCIENCE FRIDAY; I'm Ira Flatow. Five years ago this month, the I-35W bridge in Minneapolis collapsed, sending a full load of rush-hour traffic into the Mississippi River. The disaster injured nearly 150 people, killed 13. The bridge was literally falling apart.
Originally published on Fri August 31, 2012 11:04 am
How a cucumber creates its curling tendril has stumped scientists for centuries, including Charles Darwin and Asa Gray. With the help of time-lapse photography and prosthetic tendril fabricated in the lab, physicist Sharon Gerbode, biologist Joshua Puzey and colleagues figured out why tendrils twist, according to a new study in Science.