Feature

Circuits May Be Replaced

Subtle Differences Found in “Identical” Chemicals

Digging up the First True Man

Device Measures Cattle’s Stomach Gas Pressure

Nature Ramblings: False Spring

Insect-Eating Mammal Has Toxic Salivary Gland

Books of the Week

“Age of Decision” Is 13

Gyro in Satellite Could Test Einstein’s Theory

USSR Pushing to Develop Electronic Calculators

Drugs Could Eliminate TB

Possibility of Mach 15 in Hypersonic Tunnel