Happy Belated Metrology Day
It was yesterday. Oh, well.
Rachel Maddow interviews Tom O’Brian, who is the head of NIST’s Time & Frequency division.
Kinda funny (to me) to hear O’Brian to continually use English units in his examples.
Archive for May 21st, 2010
Street Corner Science
Normally, learning your physics on the streetcorner is a dicey thing. But not in Chicago on June 6
Street Corner Science:
Ask a Nobel LaureateFind us in front of the Chicago Wrigley Building on the afternoon of Sunday, June 6 and ask the Nobel Prize winning Physicist, Dr. Leon Lederman, anything you want about science, technology, and the physical world!
Simple Toys
Paintball guns: spool valve vs poppet valve
Rube Goldberg device (full-screen version — it’s modular — complete with annoying music)
A toy I’ve seen. Not sure if/where this is incorporated in functioning machines.
Radial engine and Wankel rotary engine (more engines at a site to which I’ve previously linked)
Geroter aka “Generated Rotor”
SFN RSS
