Waves, Bubbles and Reactions in a Free Sphere of Water





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Uploaded on May 5, 2007


First waves in a large free sphere of water in weightlessness are examined.

A large free sphere of water 130mm in diameter. A puff of air is put radially directed from side and we look at the resulting waves.

There is combination of surface waves and body waves that go through this spere.

Then water droplets in a bubble in a sphere are examined.

A sphere of water in weightlessness, 75mm in diameter with an air bubble of 35mm inside.

Water droplets are injected into the bubble and the resulting collisions are examined.
Most of the collisions are elastic. But once in a while a collsion will result in a mass transfer with the interface.

Finally effervescent antacid tabled in a water sphere is examined.

A sphere of water, 15mm in diameter, with an effervescent antacid tabled.

Bubbles form rapidly from chemical reaction.

This experiment was done at International Space Station by Don Pettit from NASA.

It's Never too Late to Study:
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