Comments by "H. " (@LocPH.) on "Veritasium" channel.

  1.  @imodium438 The reason the atmosphere is kept is because there is a force holding it back - gravity. This is the same reason things fall down and not up. If you don't believe in gravity, please explain to me why things fall one way.
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  2.  @imodium438  You don't have any idea of what you are talking about. I won't go into the argument whether gravity is proven or not, but your explanation makes no sense. The reason a boat floats on water is because of density, and also gravity. The lower you go in water, pressure increases. This is the reason why less dense object get pressed upwards. But you forget what causes that higher pressure. Why would it have higher pressure if it has no force affecting it? Explain that with a person jumping and then falling. Also, moving in a direction requires no medium. If you've ever been shooting from a gun, you know it has recoil. This is how rockets work - they "shoot" out high momentum gasses similar that to a bullet, which then creates a force that makes the rocket move.
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  3.  @imodium438 Wow this is amazing. So you are the right one to tell me that I don't know how things work. Listen, first off, gases from a gun do not create any type of pressure in the "air" that makes the recoil! You haven't even explained how it creates it so I need to assume you mean in front of the gun. High pressure gasses flow out of the gun and hit the lower pressure air outside – the pressure isn't increased from there! All types of acceleration of mass requires a force, like when you accelerate in a car. This will of course create counterforce on the pavement under the tires – friction. If the pavement was a carpet it would be "thrown" away from the tires and if you tried holding it you will feel a force – acting in the opposite direction of where the car accelerates! If you would jump up from a weak table it will probably break, a counterforce. Gasses being accelerated out of a nozzle will have a force accelerating them, which means a counterforce will act against the rocket! Also, "Experiments in vacuum chambers have proven miniature rockets wont propel & wont even ignite" what experiments? Show me those experiments if they exist. Secondly, what do you mean with electromagnetic and dielectric forces? What do they have with typical objects to do? How would that explain things falling downwards ? Thirdly, "water pressure is caused by density alone as water is denser than air but not denser than rock so it's sandwiched between the air & the rock weighing down on itself." How? What is sandwiched? What do you mean by weighing down on itself? You don't seem to understand that water cannot have higher pressure in one part of itself and lower in the other – just like you said earlier with the atmosphere and vacuum of space – a force is required to have high pressure regions . Same with a person falling, he is being dragged down to the the earth. If there is no gravity acting on him, then where do the forces come from? My friend, before schooling people to read you should maybe teach yourself about basic physics!
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  4.  @imodium438  And please man. I really don't want to talk bad about you, so I hope we can discuss this subject without any talking about ignorance and such. I respect your opinion - but I have a different one - but let us be kind to each other.
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  5. The reason why helicopter blades on earth spin at "only" 500 rpm is because of their size or length. That little helicopters has much smaller blades and therefore it'll spin faster. Look at similar sized helicopters on earth like rc helicopters; they also spin at 2000 rpm+. Tip speed is the actual indication of speed, not rpm. That's a relative term
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  6. well he got it
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  7. 👌
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  8. When the fishy smell turns out to be a good feeling.
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