From Super Soakers to heat engines with Dr. Lonnie Johnson
6
votes
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Femtosecond lasers create 3D midair plasma displays you can touch (2015)
8 votes -
The nurse who introduced gloves to the operating room
9 votes -
I found an article that said "The microwave was invented to heat hamsters humanely in 1950s experiments." And I thought, no it wasn't. ...was it?
22 votes -
An invention to counter IEDs
6 votes -
The tempest prognosticator
4 votes -
The most important invention of the 20th century: Transistors
7 votes