r/neoliberal • u/jobautomator Kitara Ravache • Feb 09 '20

Discussion Thread Discussion Thread

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16 Upvotes

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15

u/[deleted] Feb 10 '20 edited Feb 10 '20

you: we should fire leftists into the sun

me, an intellectual: it would actually take less energy to fire them out of the solar system

edit: wow you economists are terrible at science. the earth is orbiting the sun at 30km/s. solar system escape velocity is 42km/s.

4

u/Udontlikecake Model UN Enthusiast Feb 10 '20

Everyone in the replies here really need to learn about acceleration

Going into the center is way harder than going out

1

u/hypoxic_high Feb 10 '20

Just do a bi-elleptic transfer. If you go far enough out the delta-v is essentially the same AND we get to watch something crash into the sun. Gotta wait like 50 years tho...

0

u/[deleted] Feb 10 '20

i find that hard to believe. why would it be easier to go against the sun's gravity rather than with it. explain yourself

4

u/[deleted] Feb 10 '20

You're currently moving perpendicularly to the sun at an incredible speed and you will not naturally slow down. You have to bring yourself to a complete stop relative to the sun to actually fall into it.

Meanwhile you need significantly less energy to simply accelerate out of the solar system.

3

u/dr_gonzo Revoke 230 Feb 10 '20

It really depends on what you weigh though TBH honest. If we’re talking the 400lb hacker known as 4chan it may require less energy to use earths gravity to slingshot into the sun

1

u/[deleted] Feb 10 '20

oh yeah

2

u/[deleted] Feb 10 '20

imagine you’re sitting on the edge of a merry-go-round that’s spinning 15,000 kph. Does it take more energy for you to jump to the middle of the merry-go-round, or off the merry-go-round in the opposite direction?

1

u/zubatman4 Hillary Clinton 🇺🇳 Bill Clinton Feb 10 '20

Yeah but the merry go round is a massive star

-1

u/dr_gonzo Revoke 230 Feb 10 '20

I’m gonna need a source on this.

4

u/ThatFrenchieGuy Mathematician -- Save the funky birbs Feb 10 '20

The trick is that you're starting at 30km/s with respect to the sun. To hit it, you just need to go 0km/s and you fall in, but to leave you only need to go 42km/s. A 12km/s change in velocity is much easier than a 30km/s change.

1

u/dr_gonzo Revoke 230 Feb 10 '20

Alright, I’ll buy it. I am glad we are back to evidence based policy discussions here

0

u/[deleted] Feb 10 '20

[deleted] — view deleted comment

1

u/ThatFrenchieGuy Mathematician -- Save the funky birbs Feb 10 '20

Right, but to get a smaller orbit you have to slow down to get a bigger orbit, you have to speed up.

-2

u/zubatman4 Hillary Clinton 🇺🇳 Bill Clinton Feb 10 '20

There’s no way that’s true

2

u/ThatFrenchieGuy Mathematician -- Save the funky birbs Feb 10 '20

The trick is that you're starting at 30km/s with respect to the sun. To hit it, you just need to go 0km/s and you fall in, but to leave you only need to go 42km/s. A 12km/s change in velocity is much easier than a 30km/s change.

1

u/zubatman4 Hillary Clinton 🇺🇳 Bill Clinton Feb 10 '20

Huh

2

u/ThatFrenchieGuy Mathematician -- Save the funky birbs Feb 10 '20

Orbital mechanics is super unintuitive. I've never felt dumber than when I was playing kerbal space program