Posts tagged with ‘water’

Watch the future of computer-generated fluid dynamics

Computer generated water has come a long, long way, but it’s still not quite perfect. This demonstration of PhysXInfo’s new Position Based Fluids system comes pretty damn close to mimicking the complexities of moving water.

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Bending water into all kinds of wacky shapes using soundwaves

A stream of water appears to form a corkscrew shape and even move backwards in this video by science & illusion enthusiast Brusspup. The effect is achieved by playing a 24hz sine wave sound on a speaker, running water past the speaker, and filming the water at 24 frames per second (the effect is not visible to the naked eye). The water appears to move slowly forwards or backwards by raising or lowering the sound frequency.

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Evening future tech: Cutting a water droplet using a superhydrophobic knife on superhydrophobic surfaces

Just as the title says, here’s a video of a single water droplet being neatly sliced with a superhydrophobic knife.

At 2,000 frames a second, a water drop is anything but mundane

Check out that bounce.

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Submitted by Delsyd

Trippy sciencey video of the day: Static flow of water using sound

You’re actually seeing 25 different drops [or segments of the stream] every second… the waveform being played through the speaker is vibrating the pipe in a uniform way, so the drops exit the pipe uniformly, the frame rate of the camera is synced with the speaker so the drops appear static, [and] the short shutter speed means the drops appear sharp and frozen in mid air [a longer shutter speed, in contrast, would capture more of each droplet’s movement, causing it to appear blurry].

How to suspend a glass of water in place without a cup

All it takes is a little practice. I’m doing it right now. You can’t see it, but I totally am. It’s super easy and I suggest you try it right now.

Dean Kamen’s newest invention is a portable machine that turns almost any liquid into drinking water

Rarely does something come along at just the right time that has the power to save millions of lives and the power to prevent future wars. With Dean Kamen’s Slingshot, I honestly don’t think that’s an exaggeration. With 3% of the Earth’s water as drinkable, and with drinking water drying up little by little every day in parts of the world, many have predicted that majors wars in the coming decades won’t be fought over oil, but water.

But with a device no bigger than a water cooler and that uses very little electricity, the Slingshot can turn sludge, sewage, sea water and almost any water-based liquid into clean, potable water. 

Thanks to Delsyd for the link