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ate all the Oreos posted:if that were true we'd have fallen into the sun billions of years ago. we have enough orbital velocity that not only do we not fall into the sun, but we're millions of miles away from the sun. that's a ton of velocity, and the only way to actually reach the sun would be to cancel out most of it somehow. if you just "fly towards the sun" your orbital velocity will cause you to shoot right past it, since you're constantly moving tangentially to the direction you're trying to go. ahhhh yeah that makes sense. thanks
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Aug 31, 2018 18:58
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Rex-Goliath posted:this is really counter-intuitive and i’m v interested in knowing more https://www.theatlantic.com/science/archive/2018/08/parker-solar-probe-launch-nasa/567197/ maybe someone posted that already? w/e I think that's the recent better one that laid out the obvious-in-hindsight explanation for why you gotta go fast to catch back down
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Aug 31, 2018 19:00
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Rex-Goliath posted:this is really counter-intuitive and i’m v interested in knowing more a surprisingly good reddit post. https://www.reddit.com/r/space/comments/1ktjfi/deltav_map_of_the_solar_system/?st=JLIB1E50&sh=e1346aaa 
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Aug 31, 2018 19:02
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wtf?? that’s not how the solar system is shaped?????
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Aug 31, 2018 19:03
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whoever made that really screwed up
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Aug 31, 2018 19:03
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orbits are so god drat cool, thanks, i want to ksp now
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Aug 31, 2018 19:11
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it blew my mind when i finally understood why each orbit has exactly one correct orbital velocity
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Aug 31, 2018 19:12
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you don't have to actually touch the mass of the sun to be instantly killed by it, coming pretty close will do the job
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Aug 31, 2018 19:13
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yeah, if you can wait around long enough just hang out outside a bunch without sunscreen on.
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Aug 31, 2018 19:14
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hams were going to get a geosynchronous satellite up a couple years back but then TROMP happened and everybody's just launching mil and spy sats and we lost our slot  woulda been amazing. 5,000 digital audio channels for the entire western hemisphere with a fixed antenna (satellite antennas aren't expensive or touchy, but their tracking systems are)
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Aug 31, 2018 19:15
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Jonny 290 posted:it blew my mind when i finally understood why each orbit has exactly one correct orbital velocity imo KSP is an excellent way to get an intuitive understanding of orbital mechanics
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Aug 31, 2018 19:16
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hobbesmaster posted:a surprisingly good reddit post. https://www.reddit.com/r/space/comments/1ktjfi/deltav_map_of_the_solar_system/?st=JLIB1E50&sh=e1346aaa i always love being reminded that the difference between "reached the moon" and "oh gently caress now we're out in a solar orbit" is only like ~90 m/s or 200mph
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Aug 31, 2018 19:17
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spankmeister posted:imo KSP is an excellent way to get an intuitive understanding of orbital mechanics Maybe Elon should play it
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Aug 31, 2018 19:18
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pocket mortys takes up too much time
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Aug 31, 2018 19:20
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There's also a fantastic board game called High Frontier that features an extremely detailed map of the solar system and various burn/landing paths. No firing yourself into the sun though.
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Aug 31, 2018 19:23
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infernal machines posted:this is what happens when you let programmers call themselves engineers no you see making cars is like playing starcraft you just need a high apm
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Aug 31, 2018 19:31
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gschmidl posted:No firing yourself into the sun though. drat
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Aug 31, 2018 19:31
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losing a tremendous amount of orbital velocity is one way of putting it the broke-my-brain-on-physics way of thinking of it, though, is that you need to lose a shitload of orbital angular momentum
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Aug 31, 2018 19:33
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Zlodo posted:no you see making cars is like playing starcraft you just need a high apm s/making cars/managing software projects/ ==> "do we work at the same company?"
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Aug 31, 2018 19:34
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didn't spock get fired into the sun in one of the movies? we can just do that. make it happen team! no, I've already made the decision. my decisions per hour is very high.
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Aug 31, 2018 19:35
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https://twitter.com/spies_please/status/1035579745013059585 https://twitter.com/spies_please/status/1035580716669718529
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Aug 31, 2018 19:49
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https://twitter.com/flubbus/status/1034999835617837056 i love to post
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Aug 31, 2018 20:39
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What part of NEVER NOT POST did you miss?
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Aug 31, 2018 20:46
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Aug 31, 2018 20:59
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Aug 31, 2018 21:52
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Rex-Goliath posted:i love to post same!!! 
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Aug 31, 2018 22:49
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lol
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Aug 31, 2018 22:55
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as not great as seveneves was, the bits about orbital mechanics were really interesting and not things of ever thought about.
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Aug 31, 2018 23:06
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Sep 1, 2018 01:33
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haha. very good.
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Sep 1, 2018 01:39
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quoted so i could see what it was registered as. wasn’t disappointed
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Sep 1, 2018 01:41
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Rex-Goliath posted:quoted so i could see what it was registered as. wasn’t disappointed lol. same.
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Sep 1, 2018 01:45
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that's amazing
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Sep 1, 2018 01:51
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Sep 1, 2018 02:48
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Rex-Goliath posted:quoted so i could see what it was registered as. wasn’t disappointed You can mouseover a smiley in a web browser or long-press it in the app
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Sep 1, 2018 02:51
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Sagebrush posted:You can mouseover a smiley in a web browser or long-press it in the app or you can
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Sep 1, 2018 02:52
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spankmeister posted:imo KSP is an excellent way to get an intuitive understanding of orbital mechanics ksp is the first single player game that I ever enjoyed playing subnautica is the second
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Sep 1, 2018 02:54
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FAT32 SHAMER posted:ksp is the first single player game that I ever enjoyed playing mine was super mario brothers
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Sep 1, 2018 02:57
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Jonny 290 posted:orbits are so god drat cool, thanks, i want to ksp now ksp was brilliant years ago, wonder what's happened to it still remember the precise moment when everything about orbital physics finally clicked, and why relative maneuvers work the way they do [tho normal/antinormal burns are still loving perplexing to me as axes go, at least as far as understanding the result] ... long as i got some utility doing the actual MATH anyway, i can figure out the routes 
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Sep 1, 2018 03:00
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Sagebrush posted:You can mouseover a smiley in a web browser or long-press it in the app that’s not as fun though
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Sep 1, 2018 03:13
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