This video shows a test with at 3-D printed turbopump made with 45 percent fewer parts than traditionally manufactured rocket fuel pumps. During the test, the pump’s turbine spins at more than 90,000 revolutions per minute (rpms) --9.5 times fasters than a Formula One Racecar. The fast spinning turbopump causes the vibrations in this video. The turbopump moves 1,200 gallons of liquid hydrogen per minute. The hydrogen is at cryogenic temperatures below minus 400 degrees Fahrenheit, and operation at these extremely low temperatures is what causes the frost to build up and flake off during the test. Learn more about this test at: http://www.nasa.gov/centers/marshall/news/news/releases/2015/successful-nasa-rocket-fuel-pump-tests-pave-way-for-3-d-printed-demonstrator-engine.html. (NASA/MSFC)