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god needs to fix this in his next patch.
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This is really simple but has such an awesome effect. Fill a bucket full of water and place it about 5 feet off the ground. Place a subwoofer about 1 foot lower than the bucket. Run a plastic tube from the top bucket down in front of the subwoofer. Tape the tube to the front of the speaker. Then aim the end of the tube to an empty bucket on the floor. Get the water flowing from the top bucket. Now just generate a 24 hz sine wave and set your camera to 24 fps and watch the magic happen. Basically your cameras frame rate is synced up with the rate of the vibrations of the water so it appears to be frozen or still. Now if you play a 23 hz sine wave your frame rate will be off just a little compared to the sine wave causing the water to "move backward" or so as it appears. You can play a 25 hz sine wave and cause the water to move slowly foward.
Really fun experiment. You should definitely give it a try.
Thanks to JacobTMcgarry for giving me the OK to create my own version based on his original video:
www.youtube.com/watch?v=8GkHePfcpbY&context=C40ee253ADvjVQa1PpcFPcnUpDiHo1h6TW6wYQ8_-x5nQPWexhDR0=
Tags: wtf science
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#12
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sidathon (10/30/2012) [+]
(4 replies)
Well fucking done, you broke physics. God needs to sort this one out in patch 6.6.6
#28
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mullacllahdoow (10/31/2012) [+]
(4 replies)
It wouldn't look quite so impressive if we weren't seeing it at a fixed frame rate, it's similar to the effect that watching a recorded tyre has (at certain speeds it looks like it's not moving/turning backwards) the sound wave makes the water flow irregular, and so if the camera frame rate is 60fps then there is a water drop in that location every 1/60th of a second for the "froze in mid air effect".
For the time when it was going in reverse, it was falling just a little slower than that, so the next drop was slightly above the previous, but it looked like the same drop going backwards.
For the time when it was going in reverse, it was falling just a little slower than that, so the next drop was slightly above the previous, but it looked like the same drop going backwards.
#11
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itsmypenis **User deleted account** (10/30/2012) [-] So reverse mountain is a possible thing to have. All we need now are clouds that we can live on.
#9
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sanditroll (10/30/2012) [+]
(2 replies)
This effect is probably possible only with a camera i dont think it would look like this in person. This is probably due to the frequency corresponding in a way with the cameras framerate. the same effect can bee seen when a helicopter is filmed , sometimes it looks like the blades are just standing still.
