PRX - Pieces for Topic: Science
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Bob Kearns invented the intermittent wiper blade - the blades that flash occasionally across a windshield. This simple invention caused him much gr...
- Added: Nov 02, 2009
- Length: 01:20
Determining the dates of Easter and Passover led directly to our modern calendar.
Bought by RadioStPete Florida, Prairie Public, KPTZ, Port Townsend, WA, KZYX, KUFM - Montana Public Radio and more
- Added: Nov 02, 2009
- Length: 02:54
- Purchases: 10
