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Elder Postsman posted:so if the trolley is moving and air is going into the portal on the front of it, and out the other portal into clear air, that would significantly reduce air resistance on the trolley this is how Culture ships work in atmosphere
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Aug 23, 2023 06:07
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It's B bitch. The portal game conserves your speed/momentum when u jump in and motion is relative ala albert loving eigenvalue
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Aug 23, 2023 06:53
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i'm trying to remember if it conserves your motion relative to the portal specifically or to the level as a whole. i think it might be the latter.
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Aug 23, 2023 07:22
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idk you fall in hole fast and come out fast
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Aug 23, 2023 07:31
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right, but is that because you are moving fast relative to the portal, or because you are moving fast in the world? your velocity remains the same but the direction changes when you pass through, so where's the frame of reference? 
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Aug 23, 2023 07:43
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man that was an effective nerd snipe
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Aug 23, 2023 07:50
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i think there are no moving portals even in portal 2. supposedly they’re implemented but have really wonky physics
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Aug 23, 2023 07:51
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Sagebrush posted:right, but is that because you are moving fast relative to the portal, or because you are moving fast in the world? your velocity remains the same but the direction changes when you pass through, so where's the frame of reference? it's u vs portal. All frames of reference are relative. That's relativity binch
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Aug 23, 2023 07:52
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I think it has to be B, imagine it's a metal rod, if it doesn't enter and exit at the same speed relative to the portal it would be deformed since locally space is continuous
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Aug 23, 2023 07:57
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Beginning to think there might be some problems with these new "portal" inventions
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Aug 23, 2023 07:58
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Sagebrush posted:i'm trying to remember if it conserves your motion relative to the portal specifically or to the level as a whole. i think it might be the latter. It has to otherwise you'd be creating energy by going from stationary (tied to tracks) to flying. Unless the tram transferred momentum to you but that doesn't make sense. frame of reference has to be global or wrt to the tram but if wrt to the tram the portal exit is also moving at the same speed as the people so it would still be 0 for the people. I think Powerful Two-Hander fucked around with this message at 08:50 on Aug 23, 2023 |
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Aug 23, 2023 08:40
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well-read undead posted:man that was an effective nerd snipe yeah, good derail
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Aug 23, 2023 08:40
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Powerful Two-Hander posted:It has to otherwise you'd be creating energy by going from stationary (tied to tracks) to flying. Unless the tram transferred momentum to you but that doesn't make sense. the one thing we know from the portal games is that locally across the portal distances are not distorted. If they don't come out of the portal fast then they'd be crushed going into it. this may create other problems like violating conservation of momentum but so be it
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Aug 23, 2023 08:43
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ultrabindu posted:https://twitter.com/jsrailton/status/1694009058452181494 
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Aug 23, 2023 09:12
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lol the implementation of this would be hilarious, imagine getting a headline of "tiktok to be banned in the UK", but also every company spamming the government with patch notes for CSS updates not to mention this implicitly banning web based apps and half the internet
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Aug 23, 2023 10:01
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today on elderly plutocrats legislating technology...
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Aug 23, 2023 10:13
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among other issues, every single data leak etc. would be blamed on the govt, "we had a fix but were waiting for approval"
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Aug 23, 2023 11:51
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the us is probably going to try this poo poo too.
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Aug 23, 2023 13:34
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well-read undead posted:man that was an effective nerd snipe 
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Aug 23, 2023 15:30
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Midjack posted:the us is probably going to try this poo poo too. probably not at the federal level, at least not with the current executive branch. i could totally see it happening at the state level, though
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Aug 23, 2023 23:20
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vaguely reminds me of Pompeo's "Clean Network" initiative it's still going on, albeit much quieter under the current US administration https://en.wikipedia.org/wiki/The_Clean_Network please ignore the implication that networks outside of this are unclean
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Aug 24, 2023 00:16
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well-read undead posted:today on elderly plutocrats legislating technology... not directly related but elderly people that didn't have the expertise in cyber security resulted in rooftop rooftop solar PV permit applications in berkeley having to be submitted electronically IN PERSON ON A USB DRIVE for about 3 years (2014-2017ish). for 3 years the berkeley building department was just plugging random usb drives into their city computers also if anyone wants a blueski invite, i've got one, PM me.
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Aug 24, 2023 02:47
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polyester concept posted:I want to say it is A, but also, the people are moving through the portal at a high rate of speed relative to the portal, so maybe it is B. hmm yeah but where do they get their momentum from? if they were flying at the train, they’d keep their own momentum so to end up flying out the portal they’d need to get momentum from somewhere?
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Aug 24, 2023 03:20
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PokeJoe posted:It's B bitch. The portal game conserves your speed/momentum when u jump in and motion is relative ala albert loving eigenvalue yeah except where does their momentum come from? f=ma and they’ve just accelerated a shitload so something has to supply that force if you said that the train loses some momentum and gives it to the victims then yeah spose that works
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Aug 24, 2023 03:22
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p=mv binch velocity is relative so it's no different than the people hitting a stationary portal at train speed
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Aug 24, 2023 03:32
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That's the theory of relativity. For real, pretty much
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Aug 24, 2023 03:32
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imagine instead of a train it was a piece of plywood with a portal on each side. meaning the exit is also moving at the same speed as the entrance portal. would you agree this portal arrangement is fundamentally no different than a hoola-hoop? if so, you would expect the portal to travel around the people and they would remain in the exact same position on the other side, because the exit portal is also moving, canceling out any relative movement. with that in mind, it might make more sense that they would be thrown out of the exit if it was stationary
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Aug 24, 2023 04:19
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hmm I think maybe it IS B BUT not because any of you convinced me! I concluded all by myself by imaging if someone lowered a hoop over your head slowly. you’d slowly rise out of the other portal. maybe though because you were being pushed rather than velocity being given to you but my other theory is a third party observer goes from seeing a moving train and still people - and then observes the people moving relative them. if velocity is relative, where did that increase in relative velocity come from ? the portal portee relationship is not symmetrical
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Aug 24, 2023 05:35
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i’m convinced it’s both AND neither at the same time
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Aug 24, 2023 05:36
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echinopsis posted:i’m it’s A
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Aug 24, 2023 05:38
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it is
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Aug 24, 2023 05:46
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Okay but if I stick my dick thru the portal will the trolley suck me off Let's stick to the important questions gang
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Aug 24, 2023 05:48
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Farty Crabcakes posted:Okay but if I stick my dick thru the portal will the trolley suck me off well in that scenario we have to redo all the math because quantum mechanics apply
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Aug 24, 2023 06:15
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well-read undead posted:well in that scenario we have to redo all the math because quantum mechanics apply
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Aug 24, 2023 06:19
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Farty Crabcakes posted:oh if you think it's small now just wait till I'm finished way to invent another unsolvable problem 
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Aug 24, 2023 06:32
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well-read undead posted:way to invent another unsolvable problem 😎 👉👉
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Aug 24, 2023 07:42
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Farty Crabcakes posted:Okay but if I stick my dick thru the portal will the trolley suck me off oh so that's why it's called A Streetcar Named Desire
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Aug 24, 2023 08:14
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MiniFoo posted:oh so that's why it's called A Streetcar Named Desire
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Aug 24, 2023 08:17
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Farty Crabcakes posted:Okay but if I stick my dick thru the portal will the trolley suck me off TROLLEY PROBLEM SUCKED ME OFF?!?
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Aug 24, 2023 08:36
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haveblue posted:the correct answer is they get splattered by the trolley, you can’t portal a moving surface  Powerful Two-Hander posted:TROLLEY PROBLEM SUCKED ME OFF?!? 
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Aug 24, 2023 12:16
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