Click to expand

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:


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Views: 12265
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Submitted: 10/30/2012
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What do you think? Give us your opinion. Anonymous comments allowed.
#1 - jayzerhaze (10/30/2012) [-]
#12 - sidathon (10/30/2012) [+] (4 replies)
Well 			*******		 done, you broke physics. God needs to sort this one out in patch 6.6.6
Well ******* done, you broke physics. God needs to sort this one out in patch 6.6.6
#8 - skwaab (10/30/2012) [-]
Genuine "wut"

This has made me re-evaluate my life.
User avatar #28 - mullacllahdoow ONLINE (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.
User avatar #25 - talkingmouth (10/31/2012) [-]
the patch is coming out 21.12.12
#11 - itsmypenis **User deleted account** has deleted their comment [-]
#26 - theautopsygremlin (10/31/2012) [+] (1 reply)
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User avatar #9 - 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.
#34 - slickwilly (10/31/2012) [-]

I came to fix physics. but..
User avatar #27 - darktoucan (10/31/2012) [-]
there is no way this can work unless its an optical illusion
User avatar #24 - Maroon (10/31/2012) [+] (1 reply)
so is it an optical illusion?
#23 - fpsnoob (10/31/2012) [-]
And here I was, feeling pretty confident in my understanding of how **** works. Way to take a **** on all my hopes and dreams op
User avatar #18 - chaossniper (10/31/2012) [-]
its like a strobe
User avatar #13 - ticticboom (10/30/2012) [-]
life is a discontinued program
User avatar #5 - maxmekker (10/30/2012) [-]
are you black by any chance? i think you broke the laws of physics O_O
#3 - sparkysniper (10/30/2012) [+] (2 replies)
reversing video is a cool thing to do i guess
#4 to #3 - anonymous (10/30/2012) [-]
its actually the same effect as when you see the wheels of a car go in reverse at high speeds
no video editing tricks nescesary for this
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