Mesmerising Proof That You Can Make A Droplet Of Liquid Levitate

Fluid dynamics ftw.

1. If you put a droplet in an ultrasonic field, you can make it levitate.

And do some other cool stuff, too.

2. Increasing the acoustic pressure flattens the drop.

3. And by changing the strength of the field, you can turn it into a star with different numbers of points.

4. The higher the field strength goes, the more points the star gets.

10. Until it all gets a bit too much.

11. Watch the full video and read an explanation here.

There’s also a pre-print scientific paper available on

12. h/t @arcadia_eg0

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Kelly Oakes is science editor for BuzzFeed and is based in London.
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