https://dash.harvard.edu/bitstream/handle/1/8852146/Vaccination%20is%20widely%20considered%20one%20of%20civilization%E2%80%99s%20greatest%20modern%20medical%20achievements.pdf?sequence=6&isAllowed=y

there's the vaxx article

oh sorry

i was told to post this in lounge I'll move it

https://dash.harvard.edu/bitstream/handle/1/8852146/Vaccination%20is%20widely%20considered%20one%20of%20civilization%E2%80%99s%20greatest%20modern%20medical%20achievements.pdf?sequence=6&isAllowed=y

damn say

same*

not say sorry

lol is anyone here flat earther im round earther willing to debate civililly

m8 this was made in 1922

I could be totally wrong but

ah the vacuum argument

as in?

exactly

plus

the atmosphere isn't a constant pressure

it gradually decreases in pressure with altitude

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

?

it's not a perfect vacuum

rockets work

by seperating matter from the craft

this creates kinetic energy

that applies thrust to the craft

no medium is required

think about it like this

let's say

you are in space, floating, right

no gravity, for all practical purposes a vacuum

now imagine

in front of you, is a large block

if you push off the block

you and the rock will both move in opposite directions

the same is happening with a rocket engine

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

reaction*

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

the rocket moves because of the force applied to it

not because it applies force to a medium

the smoke is from the burning of fuel

kind of what happens

the engines have to throttle up first

so you get some fumes

the rocket is also

restrained

so that the engines can throttle up

it is then released from clamps

and if its engines produce more thrust than it has gravitational attraction to the earth

it will immediately begin moving upwards

the smoke has nothing to do with a pressure differential

no

it's coincidence, not causation

yes, smoke is present

that's because when you burn carbon based fuels

they tend to smoke

so the fuel that is creating thrust

also happens to be creating smoke because it's basically a kerosene fire

I haven't watched the video but I assume that you are watching a space ship launch off from the ground right

?

I mean

if it needed a medium to move

it would have the atmosphere to push off of so

smoke isn't necessary

space isn't a perfect vacuum

no large area in the universe is

no but there's not a huge difference in pressure

simply put

if you go up to 100km

which is around where space is agreed to begin

but still has a thin atmosphere

it's not like

the air is pressurized at one atmosphere

and then immediately switches to a near perfect vacuum

gravitational attraction pulls gases toward the earth, and the compression forces from the gasses on top

provide higher pressure at sea level

and with less gas on top the higher up you go, the lower the pressure

in fact, the earth's atmosphere may extend, at an indescribably small thinness, hundreds of thousands of kilometers away from sea level

But you get to a point in deep space

where the amount of matter in a given space

is so miniscule, that the degradation it causes in movement and orbits is negligible over any reasonable amount of time

in fact, the ISS has to perform periodical boosts to keep its orbit high enough every couple months

as it loses 2-4 m/s in that time frame from orbital degradation

as they are only I think 450 km or so above the surface, so there's still a little bit of atmosphere to be slowed down

but geosynchronous satellites, which are around 1500 km up, are more subject to gravitational forces from the moon than the atmosphere

it's basic physics

did you not

listen

to a single word that we just said

well guess what

one, that analogy is completely unrelated and two, the earth has existed for 4 billion years my guy

ikr

the atmosphere's change of pressure is gradual

that's why plane cabins are pressurized

if you stuck your head out of a commercial plane, you'd probably freeze to death and/or suffocate

that's why it's hard to breathe on mount everest and not on the beach

yeah you have to acclimate to the thinner air to be able to go up to even some of the first base camps

without oxygen supply

If anyone else wants to argue about flat earth I'm still open to having a debate

I don't even know why I come on these servers