LEAD Link Dump

Miscellaneous Links

http://bear.sbszoo.com/

http://www.unr.edu/NevadaSat/BalloonSats/Balloonsat%20Pages/microtrak.html

http://www.eoss.org/wbaltrak/

http://space.1337arts.com/

http://weather.uwyo.edu/polar/balloon_traj.html

Basic numbers for different lighter-than-air gas http://www.chem.hawaii.edu/uham/lift.html

A source for commercial weather ballons http://scientificsonline.com/product.asp_Q_pn_E_3041755

How helium balloons work http://science.howstuffworks.com/helium2.htm

American Science and Surplus has cheap mylar rolls and other cheap supplies http://www.sciplus.com/recommend.cfm/recommendid/5529

http://twit.tv/kiki34

http://spacehack.org/

List of GPS receivers known to work over 60k feet. http://showcase.netins.net/web/wallio/GPSrcvrsvs60kft.htm

GPS ordering page for cheap GPS equipment. http://www.usglobalsat.com/

High Altitude GPS From Argent Data Systems (Also home of OpenTracker+ and corresponding Arduino Shield) https://www.argentdata.com/catalog/product_info.php?cPath=23&products_id=144&osCsid=af0ae283c8e70f5d0f6f6f0d92be0724

Parachute Links

• Calculating parachute size: http://www.pcprg.com/rocketre.htm
• Calculating parachute size: http://www.pcprg.com/rounddes.htm
• Descent rate calculator: http://www.onlinetesting.net/cgi-bin/descent3.3.cgi