Scientific balloons - Fort Hays State University
Transcript of Scientific balloons - Fort Hays State University
Things that fly…
• Human innovations:
http://martinjetpack.com Daedalus, MIT, 1988 (70 miles, 4 hours)
Things that fly…
• Human innovations: – Airplanes / Jets
– Helicopters
First flight at Kitty Hawk, North Carolina on December 17, 1903
Jacques and Louis Breguet, Gyroplane No. 1, 1907
Things that fly…
• Human innovations: (Hindenburg, 1937) – Hydrogen vs. Helium. http://www.airships.net/hindenburg/interiors
Why do balloons fly?
Archimedes of Syracuse
(212 B.C.)
Buoyancy = weight of displaced fluid
Isaac Newton
(1687)
Buoyancy
Conditions for buoyancy:
1) A fluid must be present (air)
2) An object must be free to move in the fluid (balloon)
3) The object and fluid must be subject to a force (gravity)
A. L. Lehman et. al., Am. J. Phys. 56, 1046 (1988).
Altitude
Mount Everest 5.5 miles
Commercial Jet 6.5 miles
Our balloon 16.6 miles
ISS 230 miles
Radius of Earth 3963 miles
Moon 230,000 miles
Balloon Records
• 1st US transcontinental (& 1st transatlantic) amateur radio HAB (Dec 11, 2011)
California > Mediterranean Sea, 6,236 miles in 57 hours
Near Space Project flight number CNSP-11
(call sign K6RPT-11, www.aprs.fi)
Future Goals
• Cosmic rays
• Video streaming in real time
• Collect bacteria at high altitude
• Payload stabilization with gyroscopes/CO2 cartridges
• Panoramic images, fish eye lens, etc.