>>2905626 (flat earther from old bread)
You will never be taken seriously until you are correctly able to differentiate between your, you're, and yore. It is an instant indicator of a low level of education and nobody will read what you have to say. Take 15 goddamn minutes and master this 1st grade material or else stop posting here.
Is Jair Bolsonaro globalist or populist or neither? Basically I'm asking if the good guys view this as a good thing or not.
When you burn a rocket engine, the craft is "pushing off" of the burning fuel which exits the engine at extremely high velocity and pressure. Newtonian physics teaches us that every action has an equal and opposite reaction–if you push something away from you, it pushes back against you at the same time. In space, this is even more effective because you are not contending with drag (which reduces your maximum forward velocity) and gravity is less of a factor (which would otherwise tend to pull you toward the surface, regardless of the other components of your net vector) so once you get moving, it is much easier to stay moving and your maximum velocity is thus MUCH higher (in atmosphere it is limited by how much air drag your total acceleration can overcome: when they reach equilibrium you will attain a constant speed based on how hard you're thrusting).
The burning fuel acts as a medium for the craft to "push off" of, since no atmosphere is available to perform this function (on an aircraft you burn fuel to rotate a propeller whose geometry results in Bernoulli effects which pull the craft forward because the pressure in front of the prop blades is much lower than the pressure behind them, while the wings generate upward Bernoulli effect to counteract gravity and allow the craft to climb). You can also just use a jet engine, which functions very similarly to a rocket engine: it creates thrust by ejecting high-speed, high-pressure burning fuel.
Need a practical demonstration? Try holding an active fireman's hose by yourself. You will get wrecked, because the mass and force of the water leaving the hose generates powerful net thrust against you. The water is not pushing against the atmosphere–the water is pushing against YOU when it leaves the "system" comprised of you and the hose. The same thing would happen with even greater force if that system were operating in a vacuum.