You're probably thinking of things like propellers that rely on air or water. Propellers are like the wings that give the plane lift but instead give "lift" in a forward direction, they rely entirely on air to work (or water if you're in a boat). Thrusters used on spacecraft don't rely on fluids. Just as with propellers, in order to gain momentum in space you must change the momentum of something else. This is part of the law conservation of momentum which states that momentum cannot be created or destroyed (for most applications), only transferred from one form to another (which fits in well with relativity). Since there is nothing else to manipulate in space to push you forward, you usually rely on whatever you can carry with you. This means most spacecraft rely on an energy source and a "reaction mass", or propellant, to basically "shoot away" from.
It doesn’t say gravity doesn’t exist. They’re just saying it’s a level deeper than you think. Gravity isn’t earth pulling anything towards it, it’s earth bending spacetime, and objects following that warp in spacetime.
Veritasium and Quin's chat IQ balances each other out.
chat is just being contrarian on purpose to trigger him.
Imagine how nutty of a POE build Einstein would theory craft in POBFork POOGERS
Never include Quin's cooked assed chat in any sort of video having to do with science, please.
chats iq is the equivalent to how many people think they are funny. Meaning 1.
Veritasium: where can you find a mass large enough?
Chat: YOUR MOM
2Header pretending to be a 5Head because he already saw the video, i bet he cant even name the 7 base SI units
Memorizing trivial information = smart btw
@@1g. trivial = celebrities. laws of the universe =/= trivial
Imagine someone couldn't even do simple math looking at the equation and be like "exactly" "yep i totally understand and agree with that"
Well in simple words gravity is the effect of curve space time
Except the man falling from the building is going be a pile of meat mass on the ground in a couple of seconds.
Chat is smarter than einstein PogU
How does thrust in spaceship work if there is no air in the space??Anyone knows?
you don’t need air or atmosphere to have thrust
You're probably thinking of things like propellers that rely on air or water. Propellers are like the wings that give the plane lift but instead give "lift" in a forward direction, they rely entirely on air to work (or water if you're in a boat). Thrusters used on spacecraft don't rely on fluids. Just as with propellers, in order to gain momentum in space you must change the momentum of something else. This is part of the law conservation of momentum which states that momentum cannot be created or destroyed (for most applications), only transferred from one form to another (which fits in well with relativity). Since there is nothing else to manipulate in space to push you forward, you usually rely on whatever you can carry with you. This means most spacecraft rely on an energy source and a "reaction mass", or propellant, to basically "shoot away" from.
@@LongToad thanks for explanation
@@marcinsojka2206 in short, it's newtons third law. if you throw a big rock in space, you start moving in the opposite direction as the rock.
smart enough to not be a flat earther. but cooked enough to believe gravity doesn't exist.
It doesn’t say gravity doesn’t exist. They’re just saying it’s a level deeper than you think. Gravity isn’t earth pulling anything towards it, it’s earth bending spacetime, and objects following that warp in spacetime.
And you're smart enough to believe Earth has curvature...
But you're cooked enough not to believe Gravity is just curvature of spacetime.
That's Newtonian physics