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Home Space

Astronauts Submerge a GoPro camera Inside a Floating Ball of Water On The ISS

Dragos Mitrica by Dragos Mitrica
November 7, 2014
in Space, Videos
Reading Time: 1 min read
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photo credit: GoPro in water by Steve Swanson, Reid Wiseman, and Alexander Gerst. Screen capture from YouTube.

Curious about how water surface tension “behaves” in microgravity, astronauts onboard the International Space Station decided to stick a GoPro camera inside a floating ball of water. They filmed the results in 2D and in 3D:

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The crew “submerged” a sealed GoPro camera into a floating ball of water the size of a softball and recorded the activity. The video was filmed in the Summer of 2014 by Steve Swanson, Reid Wiseman, and Alexander Gerst, who also appear in the video.

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In space, liquids aren’t affected by gravity, and therefore they maintain a somewhat spherical shape. Instead, it’s surface tension which dictates how they behave. Surface tension is a contractive tendency of the surface of a liquid that allows it to resist an external force. Hydrogen bonding between water molecules naturally pulls them together, resulting in a spherical configuration that minimizes surface area. You can also see the results in 3D below, but you need 3D glasses to view the video properly:

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Tags: International Space Stationsurface tensionvideo
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Dragos Mitrica

Dragos Mitrica

Dragos has been working in geology for six years, and loving every minute of it. Now, his more recent focus is on paleoclimate and climatic evolution, though in his spare time, he also dedicates a lot of time to chaos theory and complex systems.

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