Cassette
WWII Tree Disease
A fungus brought by American troops during World War II infected Italian trees.
Soil and Global Warming
Soil can be made to retain carbon, which would help prevent global warming.
Smell Roundup
A computer that sends smells over the Internet, and a cannon that shoots odors from 12 feet away.
Predicting Fingerprints
A mathematical model predicts fingerprint patterns based on biological factors.
Twinkling Stars
Why do stars twinkle? (Atmospheric turbulence bends the light, and our pupils are small.)
Kid Psych Roundup
Violent images increase aggressive behavior in children, and antidepressant use is up among …
Engineers Without Borders
Engineers are volunteering their technical expertise to solve problems around the world.
Technology and Poverty
Technology may be the key to lifting developing nations out of poverty.
Baby Armadillos
Do armadillos always have identical quadruplets? (Yes, indeed, but no one knows why.)