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The increase in pressure in this rolling simulator is more intense than which the astronauts undergo when they actually take off per rocket.
(Chocolate Jacques instructive chromos, picture-album "Race to the Stars", 1960's)
A two-stage light-gas gun launched models into the Atmospheric Entry Simulator at approximately 13,600 miles per hour. The design differs from earlier light-gas guns by the addition of the second shock tube and relocation of the piston. The blast tank attenuated most of the gun’s gas effects before they could enter the test section.
Credit: NASA
Image Number: A-24639.6
Date:
(c. 1956) Alfred Eggers, Jr., standing beside the Small-Scale Atmospheric Entry Simulator, a pilot counterflow ballistic tunnel built to validate his concept that a model shot through air that was flowing in the opposite direction through a hypersonic nozzle would simulate the conditions a spacecraft might encounter re-entering the Earth’s atmosphere. Its successful operation led to the construction of the larger, faster Atmospheric Entry Simulator.
Credit: NASA
Image Number: A-23513
Date: Circa 1956
Find out what happens during an earthquake by creating your own using this interactive 3D seismic waves simulation developed by ForgeFX. An actual earthquake will always create Primary, Secondary, and Surface waves, using this 3D simulation students can isolate waves to understand the different types of seismic activity. Select the type of wave, the strength of the waves, the angle, and the zoom levels for the simulation to run. Waves can be played forward and backwards through time, in textured or wire-frame 3D models, all controlled by the user of the simulation.
Find out what happens during an earthquake by creating your own using this interactive 3D seismic waves simulation developed by ForgeFX. An actual earthquake will always create Primary, Secondary, and Surface waves, using this 3D simulation students can isolate waves to understand the different types of seismic activity. Select the type of wave, the strength of the waves, the angle, and the zoom levels for the simulation to run. Waves can be played forward and backwards through time, in textured or wire-frame 3D models, all controlled by the user of the simulation.