Tech Today: Semiconductor Research Leads to Revolution in Dental Care 

Toothpaste based on the mineral hydroxyapatite, popular across Asia and much of Europe today, is finding its first foothold in the U.S. But the idea behind this alternative to fluoride-based toothpaste was conceived here in a short-lived NASA field center more than 50 years ago.  While working at NASA’s Electronics Research Center – active in […]