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Forum » Satellites orbiting Earth is impossible - gtfih!! (math inside)
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Thread: Satellites orbiting Earth is impossible - gtfih!! (math inside)

post 1620285551 10-24-2020, 02:02 AM
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Satellites orbiting Earth is impossible - gtfih!! (math inside)

If you have a hockey puck on frictionless ice moving left...
... and you pull a string and give it velocity going down:


then the total speed increases:


So at every instant in time, a "satellite" would have this happen to it, and it would shoot off the "earth" because the speed would keep increasing
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post 1620286061 10-24-2020, 02:17 AM
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Originally Posted By Rajc⏩
didn't get your point but aight i'll believe you brah
Don't believe me think about it, this is like... 6th grade math probably in Europe
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post 1620286071 10-24-2020, 02:17 AM
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Wincel solved it boys.

Imagine having so little life left that you have to create alts for days to spam a forum full of boys because that's 99.95% of your life. 0.05% is jerking off to mature massage porn.

EDIT: Spot sold to Waymill. Never go without a day of pleasuring yourself with reinforced metal goodness

post 1620286121 10-24-2020, 02:18 AM
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Originally Posted By Schnitzl⏩
Wincel solved it boys.

Imagine having so little life left that you have to create alts for days to spam a forum full of boys because that's 99.95% of your life. 0.05% is jerking off to mature massage porn.
Damn right I solved it
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post 1620287621 10-24-2020, 03:16 AM
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Bump
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post 1620290111 10-24-2020, 05:10 AM
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Stop
You have my word as a Schons.
post 1620304701 10-24-2020, 10:19 AM
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Bump
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post 1620305781 10-24-2020, 10:30 AM
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There are different layers to our atmosphere. If you completely leave the gravitational field of our planet you fly off

If you stay in the gravitational pull you “fall” over earth such as most satellites and the ISS.

If you stay long enough eventually you end up in a “decaying orbit” which brings you closer to earth until you eventually fall back down. This is how most satellites are recovered after there lifespan is over.

In order to avoid a decaying orbit you periodically use propellant to increase speed and stay in the desired orbit.

And the reason you don’t just keep increasing speed is air resistance. Once you get close enough to earth you rapidly decelerate
post 1620306291 10-24-2020, 10:36 AM
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Originally Posted By JayGrand⏩
There are different layers to our atmosphere. If you completely leave the gravitational field of our planet you fly off

If you stay in the gravitational pull you “fall” over earth such as most satellites and the ISS.

If you stay long enough eventually you end up in a “decaying orbit” which brings you closer to earth until you eventually fall back down. This is how most satellites are recovered after there lifespan is over.

In order to avoid a decaying orbit you periodically use propellant to increase speed and stay in the desired orbit.

And the reason you don’t just keep increasing speed is air resistance. Once you get close enough to earth you rapidly decelerate
Hmm seems NASA was clever enough to claim satellites orbit inside the atmosphere (which they do since they are weather balloons)

If we consider something without atmosphere - say the Ball Earth "orbitting" the Ball Sun

Why doesn't the Earth fly off, if the momentum is increasing?
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post 1620306691 10-24-2020, 10:40 AM
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jesus christ wincel, do you even understand basic newtonian physics?
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post 1620306921 10-24-2020, 10:41 AM
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Imagine getting physically mad that Trump mixed up 17x6 and then spewing this bullchit.

Wincel played himself.
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post 1620306971 10-24-2020, 10:42 AM
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A satelite is in continuous free fall op.
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post 1620308611 10-24-2020, 11:00 AM
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Originally Posted By bannedjpg⏩
Hmm seems NASA was clever enough to claim satellites orbit inside the atmosphere (which they do since they are weather balloons)

If we consider something without atmosphere - say the Ball Earth "orbitting" the Ball Sun

Why doesn't the Earth fly off, if the momentum is increasing?
Because the sun has more gravity than our tiny earth. The orbit is decaying just very slowly. I can’t be the first person to tell you that one day our earth will be eaten by the sun.
post 1620309841 10-24-2020, 11:16 AM
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bump waiting for proof

why Earth is able to "orbit" the Sun even if every second its speed is increasing
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post 1620310251 10-24-2020, 11:19 AM
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https://www.livescience.com/52488-ce...al-forces.html

Have you gotten the psychological help you need yet?
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post 1620311501 10-24-2020, 11:33 AM
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bump
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post 1620316001 10-24-2020, 12:25 PM
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In on mindless OP thread. Never did get an answer to that pesky Polaris issue, hmm.
Originally Posted By JayGrand⏩
Because the sun has more gravity than our tiny earth. The orbit is decaying just very slowly. I can’t be the first person to tell you that one day our earth will be eaten by the sun.
Sure it may be engulfed by the sun, but not because of the way you seem to be thinking, of an earth slowly spiraling in a decaying orbit towards the sun as it is now. No, it’s because the Sun will eventually become red giant, and a whole host of consequences happen with this. If the sun wouldn’t do this, the orbit of the earth as is, is quite stable.

The answer to the OPs non-point, as usual, results from a misunderstanding of basic physics and vectors. Force perpendicular to velocity along a path (as say, gravity affecting an object in circular orbit), does not change the speed, but rather direction.

In fact the work done to the object is 0 when the force is perpendicular to motion:

∫(F•ds, A->B) = 0 since vector F is orthogonal to vector ds.

But no work done = no change in kinetic energy = no change in speed. No, an object in circular orbit does not continually change speed. It does change direction.
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post 1620316261 10-24-2020, 12:28 PM
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^Always enjoy reading your answers. Hope you will always stick around on the misc. Will rep on the r/c!
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post 1620316321 10-24-2020, 12:29 PM
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Didn’t read, but fact is the average person (including OP) has 0 understanding of satellite physics in orbit

For instance many actually believe satellites move slowly in the perspective of the viewer on the ground and can actually remain inert like a drone (srs)
post 1620319881 10-24-2020, 01:13 PM
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bump still no proof?
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post 1620330981 10-24-2020, 03:17 PM
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bump
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post 1620331761 10-24-2020, 03:27 PM
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space isnt real
post 1620333091 10-24-2020, 03:40 PM
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bu mp
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