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Sound waves manipulating water
Posted on 1/23/15 at 6:05 pm
Posted on 1/23/15 at 6:05 pm
Posted on 1/23/15 at 7:05 pm to TomyDingo
Mildly interesting. Looks like camera tricks towards the end though.
Posted on 1/23/15 at 7:09 pm to TomyDingo
Incredible???
It's just a slow-mo of water coming out of a wiggling hose!
It's just a slow-mo of water coming out of a wiggling hose!
Posted on 1/23/15 at 7:46 pm to TomyDingo
The effect is amazing but inasmuch as it has an intelligible scientific explanation it's far from "incredible".
Posted on 1/23/15 at 7:55 pm to goldenbadger08
quote:
The effect that you are seeing can't be seen with the naked eye. The effect only works through the camera. However, there is a version of the project you can do where the effect would be visible with the naked eye. For that project, you'd have to use a strobe light.
For this project you'll need:
A powered speaker
Water source
Soft rubber hose
Tone generating software
24 fps camera
Tape.
Run the rubber hose down past the speaker so that the hose touches the speaker. Leave about 1 or 2 inches of the hose hanging past the bottom of the speaker. Secure the hose to the speaker with tape or whatever works best for you. The goal is to make sure the hose is touching the actual speaker so that when the speaker produces sound (vibrates) it will vibrate the hose.
Set up your camera and switch it to 24 fps. The higher the shutter speed the better the results. But also keep in the mind that the higher your shutter speed, the more light you need. Run an audio cable from your computer to the speaker. Set your tone generating software to 24hz and hit play.Turn on the water. Now look through the camera and watch the magic begin. If you want the water to look like it's moving backward set the
frequency to 23hz. If you want to look like it's moving forward in slow motion set it to 25hz.
Posted on 1/23/15 at 8:08 pm to TomyDingo
This what you got on a Friday night ?
Posted on 1/23/15 at 9:51 pm to TomyDingo
quote:
Science rules
frick you. O'Doyle rules.
Posted on 1/23/15 at 11:53 pm to livewire
quote:
Incredible??? It's just a slow-mo of water coming out of a wiggling hose!
There's no slow-motion or reverse motion in that clip.
It is all the stroboscopic nature of the video.
Since the video camera shoots 24 frames per second, anything that oscillates at 24Hz would appear stopped.
And anything that oscillates at slightly under 24 Hz would appear to move backward.
Posted on 1/24/15 at 8:07 am to djangochained
quote:
This what you got on a Friday night ?
Yeah, what's it to you?
Posted on 1/24/15 at 8:16 am to TomyDingo
I can't stop staring at it.
Posted on 1/24/15 at 8:16 am to Chillini
quote:
Mildly interesting. Looks like camera tricks towards the end though.
Entirely what it is. Looks that way because it's a 24 hz wave and shot at 24 fps
Posted on 1/24/15 at 10:48 am to colorchangintiger
This is cool as Hell!!!
People keep saying it is a camera trick, it is not a camera trick (but you need a camera to do it).
It is invisible to the naked eye. I guess if you looked through a fan that was spinning with blades passing at 24 blades a second would do the same thing, or did it in a pitch dark room with a timing light.
The 23 hz is not played in reverse. It just appears that way.
All you would see with the naked eye is a hose bouncing back and forth with water following suit.
People keep saying it is a camera trick, it is not a camera trick (but you need a camera to do it).
It is invisible to the naked eye. I guess if you looked through a fan that was spinning with blades passing at 24 blades a second would do the same thing, or did it in a pitch dark room with a timing light.
The 23 hz is not played in reverse. It just appears that way.
All you would see with the naked eye is a hose bouncing back and forth with water following suit.
This post was edited on 1/24/15 at 10:51 am
Posted on 1/24/15 at 11:34 am to TomyDingo
Wasn't Amazing Water & Sound Experiment #1 filmed in the Harz Mountains?
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