Floating Hourglass

Name: Floating Hourglass
Uploaded: 2012-05-18T09:29:50+00:00
Description: Two perspex tubes, filled with water. (In fact a little bit of water has evaporated over the years, so the tubes are not quite full any more). Each...

Collected by reddit on May 18, 2012

Two perspex tubes, filled with water. (In fact a little bit of water has evaporated over the years, so the tubes are not quite full any more). Each...

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