Feature

Normal People Focus Energies on Main Problem

World’s Dry Areas Can Learn from Each Other

Patients’ TB Germs Develop Drug Resistance

Plants That Kill Insects

Chemical Aids Mental Ill

Beer-Proof Piano

Airplane Exhaust Gases Heat Cabins Safely

Front Matter

25,000 Yr. Old Corn Pollen

Filter Tags Germs in Fifteen Hours

Gulf Stream Meanders with Seasons and Tides

In Science Fields