Velocity Raptor: a simple physics Flash game where the physics simulates special relativity. Lorenz contraction, time dilation, red shifts, visual distortions … people seem to get stuck on level 30, though Gwern made it to level 31. It’s one thing to look at equations, it’s another to get a feel for it. I strongly recommend this to everyone.
Frankly, Agent Higgs shows way less than Velocity Raptor—neutrinos pass through matter, particle-antiparticle, what else? Velocity Raptor has even fully-relevant puzzles with colour keys...
I would say that the level 30 is hard as the plain arcade, special relativity is not that relevant. If only the game allowed you to save midlevel, many more people would pass level 30.
Level 31 is easier because one of the arcade-hard tricks is removed.
ETA: Looks like level 34 is impassable without true arcade skills… It is the first level where you have both periodical obstacle and time limit
You need time dilation to get across the water trap doors, so it’s relevant in that sense.
Mind you, I wouldn’t have made it to level 30 without the space bar and the dead stop whenever you hit an obstacle. Dump all your momentum from relativistic speeds for free!
Well, actually it doesn’t truly matter, as you just need to have enough speed anyway. The fact that two parts of the trap always look simultaneous is funny, of course.
Holy shit… after playing that for a while, whenever I quickly move my eyes the page I’m reading appears to stretch along the direction of the saccade and shrink along the perpendicular direction.
This was tons of fun. Doing the wildcard levels in seen view was crazy!
I wish it had general relativity too.
Edit: also, for people wondering about the seen view, the episode of the cosmos called Journeys in Space and Time has a really awesome scene about what it would actually look like to move a significant fraction of the speed of light. Does anyone know of any (possibly more modern) other attempts to do this?
Hi all, I’m Andy, the guy who made the game. I stumbled across this posting and am glad people are both enjoying the game and thoroughly infuriated by it :)
I had that scene in Cosmos vividly in mind as I created VR. It’s amazing how well that series stands up to the test of time.
They have a bunch of videos and explanations, too. In fact, the big inspiration for this game came from an exhibit that group built. It was in a museum years ago, and you’d physically ride a stationary bike around their simulation. A giant screen in front of you showed what you’d see as you rode through the streets of Bern (supposing light was traveling at 5 mph). It was completely interactive, and completely rad.
I’ve got other links posted if you’re interested in more, but that’s the one that sticks out to me.
Well you managed to entertain a lab full of astrophysicists and me for longer than I care to admit, so that was awesome ty.
It would be neat in a game to have objects/stuff that emits light outside of visible light that can only be seen by humans when they’re doppler shifted into visible range.
I quite like that idea. Make the objects invisible (instead of black, as they are now). That could lead to some nice puzzles. I’ll keep that in mind for the future, thanks!
I can’t wait for the first time a student goes into Phys 200 and passes easily because quote “It’s just like the time I was an ice skating raptor, dodging bullets while on fire and doppler-shifting doors open” unquote.
My only wish is that you add a little more to the congratulation screen for master of relativity. Even just a picture of the same raptor with a party hat on top would be awesome. You know, just to show that the poor raptor is doing okay after running into so many walls at a significant fraction of C.
If you change the game, please, please add possibility to save progress inside level. It would make the arcade-hard SR-easy levels somewhat more feasible. I gave up when I was offerred to do the fire-snow-run among timed trapdoors.
Well done. I can’t tell though if what we’re seeing is perceived view what happened n ticks ‘ago’, where n is the distance we were from the trap n ticks ago in our current speed or at the previous speed. General relativity would have it as the former, but it seems like everything catches up instantly when you stop, rather than the area of altered perception spreading when you stop spreading outward at the local speed of light.
Nah, general relativity is specifically about gravity. In this game, acceleration is treated just like you’re changing reference frames really quicklike. The twin paradox can be thought of that way, although Einstein did it with gravity too.
In a moment of rare compassion for the player, I minimized the colors the shifted. I didn’t want to be held responsible for people getting sick all over their keyboards. :)
Velocity Raptor: a simple physics Flash game where the physics simulates special relativity. Lorenz contraction, time dilation, red shifts, visual distortions … people seem to get stuck on level 30, though Gwern made it to level 31. It’s one thing to look at equations, it’s another to get a feel for it. I strongly recommend this to everyone.
That sounds, like, offensively speciest towards Gwern! Or something.
Technically, we don’t have incontrovertible proof that Gwern isn’t a mostly-friendly AI that consumes a lot of anime.
My exact thought. Very few baseline humans are such… data whores.
Gwern is obviously a P-zombie. Just try looking at his pineal gland and you’ll find no soul.
He also has a particle physics one: Agent Higgs.
Frankly, Agent Higgs shows way less than Velocity Raptor—neutrinos pass through matter, particle-antiparticle, what else? Velocity Raptor has even fully-relevant puzzles with colour keys...
I would say that the level 30 is hard as the plain arcade, special relativity is not that relevant. If only the game allowed you to save midlevel, many more people would pass level 30.
Level 31 is easier because one of the arcade-hard tricks is removed.
ETA: Looks like level 34 is impassable without true arcade skills… It is the first level where you have both periodical obstacle and time limit
You need time dilation to get across the water trap doors, so it’s relevant in that sense.
Mind you, I wouldn’t have made it to level 30 without the space bar and the dead stop whenever you hit an obstacle. Dump all your momentum from relativistic speeds for free!
Well, actually it doesn’t truly matter, as you just need to have enough speed anyway. The fact that two parts of the trap always look simultaneous is funny, of course.
Yeah. This level is killing me.
ETA: Level 38 is… far far worse. No timing, except in the precision of movements in the final stretch.
Holy shit… after playing that for a while, whenever I quickly move my eyes the page I’m reading appears to stretch along the direction of the saccade and shrink along the perpendicular direction.
This was tons of fun. Doing the wildcard levels in seen view was crazy!
I wish it had general relativity too.
Edit: also, for people wondering about the seen view, the episode of the cosmos called Journeys in Space and Time has a really awesome scene about what it would actually look like to move a significant fraction of the speed of light. Does anyone know of any (possibly more modern) other attempts to do this?
It’s about 20 mins in: http://www.youtube.com/watch?v=abp3q7aYOss
Hi all, I’m Andy, the guy who made the game. I stumbled across this posting and am glad people are both enjoying the game and thoroughly infuriated by it :)
I had that scene in Cosmos vividly in mind as I created VR. It’s amazing how well that series stands up to the test of time.
Another neat resource for that ‘seen’ view is http://www.spacetimetravel.org
They have a bunch of videos and explanations, too. In fact, the big inspiration for this game came from an exhibit that group built. It was in a museum years ago, and you’d physically ride a stationary bike around their simulation. A giant screen in front of you showed what you’d see as you rode through the streets of Bern (supposing light was traveling at 5 mph). It was completely interactive, and completely rad.
I’ve got other links posted if you’re interested in more, but that’s the one that sticks out to me.
Well you managed to entertain a lab full of astrophysicists and me for longer than I care to admit, so that was awesome ty.
It would be neat in a game to have objects/stuff that emits light outside of visible light that can only be seen by humans when they’re doppler shifted into visible range.
I quite like that idea. Make the objects invisible (instead of black, as they are now). That could lead to some nice puzzles. I’ll keep that in mind for the future, thanks!
I can’t wait for the first time a student goes into Phys 200 and passes easily because quote “It’s just like the time I was an ice skating raptor, dodging bullets while on fire and doppler-shifting doors open” unquote.
My only wish is that you add a little more to the congratulation screen for master of relativity. Even just a picture of the same raptor with a party hat on top would be awesome. You know, just to show that the poor raptor is doing okay after running into so many walls at a significant fraction of C.
Ooh, a party hat, I like it! Yeah, I agree the player could use a little more positive feedback.
Wow. Hats off to you. This game is exactly the kind of thing I’ve been dreaming of.
You and me both. (And by that you mean literal dreams of being a velociraptor, right?)
If you change the game, please, please add possibility to save progress inside level. It would make the arcade-hard SR-easy levels somewhat more feasible. I gave up when I was offerred to do the fire-snow-run among timed trapdoors.
I’ll keep that in mind. While I (clearly) don’t want the game to be easy… I also don’t want it to be too unreasonably hard.
Well done. I can’t tell though if what we’re seeing is perceived view what happened n ticks ‘ago’, where n is the distance we were from the trap n ticks ago in our current speed or at the previous speed. General relativity would have it as the former, but it seems like everything catches up instantly when you stop, rather than the area of altered perception spreading when you stop spreading outward at the local speed of light.
Have you considered doing Galilean relativity? I don’t think it would make much difference.
In a Newtonian world? No way you could make a game like that. It’d hurt people’s eyes! ;)
It has general relativity for the effect of acceleration, doesn’t it?
Nah, general relativity is specifically about gravity. In this game, acceleration is treated just like you’re changing reference frames really quicklike. The twin paradox can be thought of that way, although Einstein did it with gravity too.
Ah.
Was fun. Difficulty falls off after level 34, so keep trying :)
I wish that at level 35+ the color of the background tiles doppler shifted. Thus if you were going too fast you wouldn’t be able to see >:D
A diabolical player after my own heart!
In a moment of rare compassion for the player, I minimized the colors the shifted. I didn’t want to be held responsible for people getting sick all over their keyboards. :)