The video features a YouTuber, Mehdi, refuting claims made by Hitmen Notoriety, a conspiracy theorist who believes space travel is a hoax. Mehdi specifically addresses Hitmen's assertions that plasma thrusters and rocket propulsion do not work in a vacuum, using his own experiments and existing scientific knowledge to disprove these claims. Mehdi explains that plasma thrusters generate thrust by accelerating ionized gas atoms, and that rocket propulsion works in a vacuum because it relies on the principle of equal and opposite reaction, as described by Newton's third law. Mehdi also provides evidence of satellites and the International Space Station (ISS) orbiting the Earth, which he claims is proof that space travel is real.
Here are the extracted facts:
1. Hitmen Notoriety is a Youtuber who claims space travel is a hoax.
2. Plasma thrusters are a type of propulsion engine that creates thrust using plasma.
3. Plasma is ionized gas.
4. Mehdi's Tesla coil generates plasma at the end of the needle by ionizing the air.
5. The ionized air glows and heats up, causing the air to expand and push the needle around.
6. In a vacuum, there is no expanding air, so the needle doesn't move.
7. Plasma thrusters use a tank of liquid gas that is turned into ionized gas atoms, which are accelerated through electric fields to generate thrust.
8. Cody's Lab is a YouTube channel that conducts experiments, including one that showed gunpowder doesn't ignite in a vacuum.
9. However, when the gunpowder is contained in a plastic bottle, it can ignite and produce thrust in a vacuum.
10. Newton's third law states that for every action, there is an equal and opposite reaction.
11. A rocket can generate thrust in space by expelling hot gas, which creates a reaction that propels the rocket forward.
12. The Saturn V rocket that took the Apollo spacecraft to the moon had a total weight of 2.8 million kilograms.
13. The first stage of the Saturn V rocket outputted 15,000 kilograms per second at supersonic speeds.
14. The International Space Station (ISS) can be seen with the naked eye on a clear night.
15. The ISS can be tracked using a detector app, which can predict when and where it will appear in the sky.
16. The ISS is the brightest satellite in the sky and can be recorded using a camera with decent zoom.
17. Other satellites can also be seen passing above one's head, but they may be too dim to be recorded by a camera.