Uncategorized
-
Tsunamis and Other Natural Hazards
The “Natural Hazards” section of NASA’s Earth Observatory Web site has many orbital images of tsunami damage resulting from the magnitude 9.0 earthquake that occurred near Indonesia on Dec. 26, 2004. The site also has links to orbital images of wildfires, floods, and erupting volcanoes. Go to: http://earthobservatory.nasa.gov/NaturalHazards/
- Animals
Mixing Genes: Bird immigrants make unexpected differences
A pair of decades-long studies of birds moving into other birds' neighborhoods show that immigration can have a quirkier effect than predicted by the usual textbook view.
- Physics
Twinkle Toes: How geckos’ sticky feet stay clean
Besides allowing geckos to cling to walls and ceilings, the millions of tiny fibers on the undersides of these lizards' toes clean themselves with each step.
