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At 8 minutes in, the producer announces that his experiments are solid evidence that space travel is fake. What he should have done is admit that he is a flake.
The fan didn't work because there was no air to move. It didn't address the primary theory of thrust, "For every action, there is an equal and opposite reaction".
The NASA rockets work in space because they carry large tanks of liquid oxygen, rather than the tiny amount that would be released by a chemical reaction. I have a more plausible theory, If you were to heavily strike the producer of this video upside the head with a pickaxe handle, it would ring like a gong for several minutes.
"How do you tell a communist? Well, it's someone who reads Marx and Lenin. And how do you tell an anti-communist? It's someone who understands Marx and Lenin."
Rocket thrust doesn't work by pushing against something (ie: air). The fuel and oxygen are mixed at high pressure in the engine then ignited. The resulting high pressure/high speed reaction escapes through the cone of the engine. The vehicle reacts by moving away from this high pressure/high speed ejection. The gases aren't pushing against anything, the vehicle is reacting to the high pressure behind it, caused by the high pressure gases being expelled.
Propellers and turbines work on a different principle. An example that best illustrates this but in a slower way, would be a wood screw. The screw isn't moving deeper into the wood because it's pushing against the air behind it as it turns. A propeller isn't any different than a screw, it just doesn't have a continuous thread like a screw. A jet engine at its simplest, is nothing more than a tube full of extremely high speed propeller blades.