Wednesday, August 5, 2009

She Dazzled Me With Science!

The Critter. Not the Auto Insurance.
Geckos are very cute. They are also very good at climbing on difficult terrain using a complex adhesive system. It was not known when and how they activate their unique system of traction. However, thanks to those geniuses at University of Calgary and Clemson University in South Carolina, we now have a better understanding of gecko feet. They discovered that geckos' amazing grip is triggered by gravity.
U of C biological sciences professor, Anthony Russel, says "Geckos use microscopic, hair-like filaments to attach to surfaces. Only at certain angles do they switch on their traction system." Geckos must be on an incline in order to trigger their adhesive system, which allows them to climb smooth surfaces at steep angles.
Learn more here.

Kill Tumors with Nanotubes!
Scientists have discovered that injecting nanotubes into tumors and heating them with a 30-second zap of a laser effectively kills kidney tumors in nearly 80 percent of mice. The finding holds a potential future cancer treatment for humans.
I would go into detail of the study, but it's late and I'm tired. So instead, go here to learn more.

Speaking of lasers, check out this nifty video. (Facebook minions may have to go to my actual blog, Lab Geek, to watch.) Its a video of a laser going through a red balloon to pop the black balloon within. The red wavelength of the laser is transmitted through the red balloon and subsequently absorbed by the darker balloon.


Trash Island
There has been a lot of talk the past few months of the Great Pacific Garbage Patch, a floating mass of garbage (mostly plastic) which is twice the size of Texas and covers hundreds (possibly thousands) of miles. Now a gaggle
of scientists from the University of California's Scripps Institution of Oceanography has embarked on a three-week mission to study the patch, trying to evaluate how much is there, what types of trash is most common, and possible draw up prevention strategies. The reasons may seem obvious, but the main one is the alarming amount of plasitic, which slowly degrades and turns into increasingly smaller bits of plastic. Seabirds mistake it for food and they dive down to eat it, as well as various forms of marine life.
Dive in here.

No comments:

Post a Comment