Feature

War Worries Children, Too

Electrically Heated Smudge Pots to Protect Orchards

Salt Injections Ease Pain

Giant Sun Spot Is Biggest in Four Years

Office Discussions Help

Hear Star’s Twinkle Now

Electronic Brains Can Mass Produce Clerical Work

Rhenium Has Bright Future

New Machines and Gadgets

[Photograph]: Powerful Magnet

Measure Oxygen in Oil That Causes Deterioration

Faint Double Star Is Triple