Message from @racecartacocat

Discord ID: 616113800458010625


2019-08-28 03:34:02 UTC  

it gradually decreases in pressure with altitude

2019-08-28 03:34:04 UTC  

which proves that it is possible to go into space

2019-08-28 03:34:12 UTC  

Via rocket

2019-08-28 03:34:22 UTC  

so there's no huge pressure difference between the edge of our atmosphere and the beginning of a near-vacuum that is space

2019-08-28 03:34:36 UTC  

Oh yeah well my unicorn knows how to use a time machine

2019-08-28 03:34:41 UTC  

?

2019-08-28 03:35:14 UTC  

Rockets don't thrust in vacuums unless you can create a medium to push off

2019-08-28 03:35:24 UTC  

They thrust off themselves

2019-08-28 03:35:28 UTC  

And then it wouldn't be a vacuum

2019-08-28 03:35:35 UTC  

it's not a perfect vacuum

2019-08-28 03:35:40 UTC  

You simply cannot demonstrate it

2019-08-28 03:35:46 UTC  

rockets work

2019-08-28 03:35:46 UTC  
2019-08-28 03:35:52 UTC  

by seperating matter from the craft

2019-08-28 03:35:57 UTC  

this creates kinetic energy

2019-08-28 03:36:02 UTC  

Even if you COULD demonstrate it, your medium doesn't exist

2019-08-28 03:36:04 UTC  

that applies thrust to the craft

2019-08-28 03:36:08 UTC  

So you created a boat with no water

2019-08-28 03:36:09 UTC  

no medium is required

2019-08-28 03:36:16 UTC  

think about it like this

2019-08-28 03:36:19 UTC  

let's say

2019-08-28 03:36:27 UTC  

you are in space, floating, right

2019-08-28 03:36:40 UTC  

no gravity, for all practical purposes a vacuum

2019-08-28 03:36:43 UTC  

now imagine

2019-08-28 03:36:50 UTC  

If you think that small tube is a vacuum you are not being honest with yourself

2019-08-28 03:36:56 UTC  

in front of you, is a large block

2019-08-28 03:36:59 UTC  

if you push off the block

2019-08-28 03:37:07 UTC  

you and the rock will both move in opposite directions

2019-08-28 03:37:13 UTC  

the same is happening with a rocket engine

2019-08-28 03:37:27 UTC  

the fuel mixes with oxidizer and is ignited to expand in a chemical reactipno

2019-08-28 03:37:29 UTC  

reaction*

2019-08-28 03:37:32 UTC  

It cannot maintain its differential

2019-08-28 03:37:43 UTC  

therefore you are pushing off pressure

2019-08-28 03:37:47 UTC  

this moves the fuel out of the rocket chamber, essentially "pushing" against the rocket

2019-08-28 03:37:53 UTC  

^^

2019-08-28 03:38:06 UTC  

the rocket moves because of the force applied to it

2019-08-28 03:38:17 UTC  

not because it applies force to a medium

2019-08-28 03:38:19 UTC  

Good explanation

2019-08-28 03:38:28 UTC  

Couldn’t have said it better

2019-08-28 03:38:34 UTC  

Notice the rocket doesn't move until it has created smoke