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/sci/ - Science & Math

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>> No.11803961 [View]
File: 184 KB, 800x1000, 800px-Shuttle_Main_Engine_Test_Firing.jpg [View same] [iqdb] [saucenao] [google]
11803961

>no shock diamonds in space
this is empirical proof that god is either a dickhead or doesn't exist

>> No.9410839 [View]
File: 184 KB, 800x1000, 1488123003210.jpg [View same] [iqdb] [saucenao] [google]
9410839

Will physics always be explainable by a mathematical framework? If there proof that it always will be? If there was something that existed outside any possible mathematical framework, what would that mean? Is it some sort of transcendental aspect of reality or just something that coincidentally falls outside of mathematics?

>> No.8704644 [View]
File: 181 KB, 800x1000, 800px-Shuttle_Main_Engine_Test_Firing.jpg [View same] [iqdb] [saucenao] [google]
8704644

I have a really intresting question that i have been thinking about for months. i thought i will ask you guys.

what makes the jet engine and the rocket fly? I mean i understand that mass comes out at high speed and that is how they fly, but it makes no sense.

take a propeller, for example, it pushes the air backward and that causes the propeller to be pushed forward. i can get that.

now take a jet engine. air comes in one end and then is ignited and then the air speed up and goes out the other end. now why would that cause the jet engine to move forward. i mean the air escaping is not pushing against any thing at all. this air was sped up the the heat produced by the burning of fuel. this is working nothing like the propeller. the same is true for a rocket engine. the rocket is not pushing against anything in space. so why is the rocket moving forward.

a similar thing happens with bullets and recoil. the rifle only recoils once the bullet has left the barrel. why is the recoil of pushing the bullet not enough? why does the barrel rise? it is the same thing as a rocket engine. but how are they working?

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