science

9/12/06 Gil's LotD: Loud speakers, USGS maps

Submitted by gil on

http://www.youtube.com/watch?v=94KzmB2bI7s Cool experiment that uses speakers to lift things.
http://ransom.redjar.org/ All of the USGS topographical maps were bought by this guy and were sent over to the Internet Archive so soon you shall be able to download them for free. Check back for updates. This is cool.
http://mcmcweb.er.usgs.gov/drc/dlgv32pro/ USGS mapviewing software.

9/7/06 Gil's LotD: Jet engines, Heavy things, Poincaré

Submitted by gil on

http://www.ronpatrickstuff.com/ This guy put a jet engine in the back of his Beetle. It works.
http://www.arcanegazebo.net/2006/08/measurements_of_gravity_using.html A story about an undergrad in a lab who decides to take a 230 L DeWar flask full of liquid nitrogen down a stairway in a handcar.