light

Life Lines

Tag archives for light

Eran Levin, a postdoctoral researcher at the University of Arizona studies Hawk Moths. He used a technique called backlighting to catch them and in the process catches numerous other insects as well. Moths navigate by keeping bright objects like the moon and stars at a constant angle. It turns out that artificial light disrupts the…

The light of death

Dr. Gems, University College London, and colleagues  were studying aging using nematode worms. They discovered that dying nematode worms emit a wave of blue light from dying cells. It was previously thought that damaged components of aging cells collect in lysosomes forming what they call lipofuscin, which fluoresces. His team refuted that long-held belief and…

By injecting the eyes of blind mice with a chemical called AAQ, Dr. Richard Kramer and colleagues at UC Berkeley and the University of Washington have found that the animals are able to detect bright light. When these treated mice were exposed to an LED lamp, they actually turned and ran away from the light.…