Feature

Front Matter

Ram Jet, Navy’s Newest

Synthetic Oil Lubricates in Hot or Cold Weather

New Molecular Bands on Jupiter and Venus

Bright New Comet

Sparrows and Starlings Build Duplex Nest

Rainmaker Aids Landings

Seven Blind Spots Still Unsolved by Scientists

Removing Brain Tumor Restores Sight

Baby Food to Be Kept in Freezer, Not a Can

Magnetic Detector

“Hams” Reach New High in Radio Frequency