Ponder humanity’s spacefaring future from the safety of your computer screen.
’s Reaver engines, but unlike previous excursions, this project required quite a bit of preplanning. First off, The Slow Mo Guys only had one chance to nab the shot, since rockets traditionally use up huge amounts of fuel and resources—a single SpaceX Falcon9 rocket, for example, usesThat single attempt also needed to be positioned, rigged, and timed to begin filming at enough of a distance that wouldn’t injure anything, or anyone.
All that prep work definitely paid off, judging from the footage. At 2,000 frames-per-second , viewers may be surprised to see an initial, bright green flame. This is produced as a rocket fuel mixture called combusts upon coming into contact with oxygen and air. After the initial green burst comes the yellow and orange flames—but with such a slow framerate, you can actually seeflames responding to the shockwaves generated by the engine thrust. According to Free, a rocket engine can generate upwards of 45,000 lbs of thrust in a vacuum at temperatures as high as 5,500 F.Andrew Paul is Popular Science's staff writer covering tech news. Previously, he was a regular contributor to The A.V.
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