Science & Medicine
[LESS INFO] 626 VIEWS | ADDED 15:10:00 08/05/11
When marine biologist Roger Hanlon captured the first scene in this video he started screaming. He studies camouflage in cephalopods--squid, octopus and cuttlefish. They are masters of optical illusion and these are some of Hanlon's top video picks of the animals going in and out of hiding.
[LESS INFO] 458 VIEWS | ADDED 15:10:00 07/29/11
A rooftop farm in Brooklyn grows vegetables and doubles as a green roof, insulating the warehouse below. Green roofs save money on cooling and heating costs and also retain water, reducing the load on sewer systems. Annie Novak, head farmer and co-founder of Eagle Street Rooftop Farm gives us a tour.
[LESS INFO] 553 VIEWS | ADDED 15:10:00 07/22/11
Cilia--the little hairs that propel a paramecium--flap spontaneously, and will synchronize their movements with neighboring cilia. But exactly why they do this has been hard to pinpoint because cilia are complicated structures. So researchers fabricated knockoffs, with fewer components, to see if they could figure out what drives the waving.
[LESS INFO] 516 VIEWS | ADDED 15:10:00 07/15/11
Just Bulbs, on New York City's Upper East Side, sells just bulbs. There are 36,000 different kinds of lightbulbs in the store, says owner David Brooks. And although customers regularly rail about how compact fluorescent bulbs are ugly, Brooks argues that they've been unfairly maligned. They come in six color temperatures and a wide variety of shapes and sizes.
[LESS INFO] 414 VIEWS | ADDED 15:10:00 07/08/11
Malcolm Beck was farming organically in the 1950s, and that's how he got into compost. What started out as a little manure pile on his farm became a 40-acre compost-processing business five decades later. Beck sold his company, Garden Ville, but still works there and is constantly experimenting with different fertilizer formulas--from bat guano to earthworm tea.
[LESS INFO] 469 VIEWS | ADDED 15:10:00 07/01/11
Humpbacks whales blow bubbles around schools of fish to concentrate them for easier capture. Although this hunting technique, called bubble-net feeding, has been documented for decades, just how whales make the nets wasn't well-understood until now, says biologist David Wiley.
[LESS INFO] 629 VIEWS | ADDED 15:10:00 06/10/11
Build them the right home and cells will organize themselves into a tissue, says bioengineer Gordana Vunjak-Novakovic. We stopped by the lab to see a little piece of beating heart muscle they grew in the lab and keep in an incubator in the corner.
[LESS INFO] 491 VIEWS | ADDED 15:10:00 05/20/11
Theoretical physicist and futurist Michio Kaku takes us on a tour of his office, where he writes his bestsellers and records his radio shows. The futuristic 1950s TV show Flash Gordon jump-started his interest in science. Watching it as a kid, Kaku realized that it was the problem-solving scientist, not the chiseled crimefighter Flash, who was really the hero.
[LESS INFO] 472 VIEWS | ADDED 15:10:00 05/13/11
A magnifying glass looks harmless. But combine it with a nice sunny day and you have a weapon of ant destruction and a fire hazard. Even if cheap pyrotechnics isn't your thing, the optics of how this works is relevant to anyone with eyes.
[LESS INFO] 522 VIEWS | ADDED 15:10:00 05/06/11
In 1968, the New Jersey Senate decreed the town of Franklin a geological wonder: "The Fluorescent Mineral Capital of the World." Over 350 different minerals have been found in the area, ninety of which glow brilliantly under ultraviolet light.
[LESS INFO] 446 VIEWS | ADDED 15:10:00 04/29/11
Drop a clump of fire ants into water and they will assemble into a raft that stays afloat for weeks, according to a new study. In other breaking bug news, researchers are investigating how caterpillars roll away from prey as inspiration for the design of a jointless, soft-bodied robot.
[LESS INFO] 432 VIEWS | ADDED 15:10:00 04/22/11
Astronauts are allowed to bring special “crew preference” items when they go up in space. NASA astronaut Don Pettit chose candy corn for his five and a half month stint aboard the International Space Station. But these candy corn were more than a snack, Pettit used them for experimentation.
[LESS INFO] 144 VIEWS | ADDED 15:10:00 04/22/11
About ten years ago, two scientists had a little extra time on board NASA's low gravity aircraft and came up with the idea of popping water balloons. Mechanical engineers Seth Lichter, of Northwestern University, and Mark Weislogel, of Portland State University, use the floating water balls to explain some basic principles of physics.