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McGinnis


Scientific Balloons:

http://www.planoballoonfest.org/about_balloons.html

http://www.grc.nasa.gov/WWW/K-12/TRC/Aeronautics/Hot_Air_Balloon.html 

http://www.suzy.co.nz/suzysworld/Factpage.asp?FactSheet=166 

http://business.virgin.net/skyqwest.balloons/pages/information2.htm 

http://www.csbf.nasa.gov/balloons-txt.html 

http://travel.howstuffworks.com/hot-air-balloon.htm 

http://www.centennialofflight.gov/essay/Dictionary/Scientific_Balloons/DI72.htm 

http://www.centennialofflight.gov/essay/Lighter_than_air/early_scientific_balloons/LTA7.htm

http://en.wikipedia.org/wiki/Columbia_Scientific_Balloon_Facility 

http://www.allstar.fiu.edu/aero/balloon2.htm 

http://topweb.gsfc.nasa.gov/balloon/index.html 

http://en.wikipedia.org/wiki/Gas_balloon 

http://www.americanblimp.com/fly.htm
 

Hydrogen: 

http://en.wikipedia.org/wiki/Hydrogen 

http://periodic.lanl.gov/elements/1.html 

http://www.eia.doe.gov/kids/energyfacts/sources/IntermediateHydrogen.html 

http://www.webelements.com/webelements/elements/text/H/key.html 

http://www.hydrogenassociation.org/ 

http://www.hydrogen.co.uk/ 

http://www1.eere.energy.gov/hydrogenandfuelcells/ 

http://www.chemicalelements.com/elements/h.html 

http://www.chem4kids.com/files/elements/001_speak.html 

http://www.bayerus.com/msms/fun/pages/periodic/hydrogen/index.html 

Helium: 

http://www.howstuffworks.com/helium.htm 

http://www.chem4kids.com/files/elements/002_speak.html 

http://www.bayerus.com/msms/fun/pages/periodic/helium/index.html 

http://en.wikipedia.org/wiki/Helium 

http://periodic.lanl.gov/elements/2.html 

http://www.webelements.com/webelements/elements/text/He/key.html 

http://education.jlab.org/itselemental/ele002.html 

http://www.chemicalelements.com/elements/he.html 

http://www.chemicool.com/elements/helium.html 

http://www.webelements.com/webelements/scholar/elements/helium/key.html

 

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