Feature U. S. Calls for Physicists Needed in Defense Program By Science News Magazine Issue: Vol. 38 No. #21, November 23, 1940 Share this:Share Share via email (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Print (Opens in new window) Print Having trouble viewing this? Open in a new window