The Space Shuttle Program: Bob Thompson Q&A @benwl

Plasma Ben | The Space Shuttle Program: Bob Thompson Q&A @benwl | Uploaded 14 years ago | Updated 11 hours ago
Space Center Lecture Series hosts Bob Thompson in Space Shuttle Program Management, Sept. 18, 2009.

Space Center Lecture Series aims to bring the wonder and excitment of space, science and exploration to the public in the form of monthly lectures from renowned scientists, engineers, physicians, and astronauts. From plasma rockets of the future, to scientific expeditions to the South Pole, to heroic repair missions of the international Space Station, to past and future missions to the lunar surface. The lecture series is a grassroots series and is always free and open to the public. If you would like to donate to our continued lectures, please visit:

www.SpaceCenterLectureSeries.com

Boiling water with a soldering iron in microgravity

$Plasma Exhaust From The VASIMR VX-200i, HD This is one test firing in a series of experiments with the VASIMR VX-200 plasma rocket prototype. The rockets 1st stage (a Helicon plasma source) was fired at 30 kW using a state-of-the-art solid state RF power supply, and the rockets 2nd stage was fired at 109 kW using a second solid state RF power supply. Argon gas was used as the propellant, and gives a distinctive purple/blue/UV glow. The second half of the video is slowed down to 1/10 speed during the firing of the second stage. The plasma diagnostics that can be seen in this video are situated on an x-y motion stage capable of moving side to side 200cm and in an out 500cm with 0.5mm precision. Because of the extreme temperatures and heating within the plasma exhaust, the diagnostics are all constructed out of refractory metals, high temperature ceramics, or graphite (or all three). The rocket and everything else seen in this video is located within a vacuum chamber, used to simulate the vacuum environment of space. Two cameras mounted within the vacuum chamber record a simultaneous top view and side of the VX-200 plasma exhaust. The VX-200 is the precursor to the VF-200, a flight demonstration unit that is intended to fly on the International Space Station (ISS). http://www.nasa.gov/home/hqnews/2008/dec/HQ_08-332_VASMIR_engine.html www.adastrarocket.com$