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Reblogged from ak47

tataralandscape:

bluprint:

Who knew that by just replacing the sand in an hourglass with soapy liquid you could defy the laws of space, time, and physics and make it appear to flow in reverse? But that’s exactly what happens with this Awaglass timer.

Click below to see the video and how it works:

shinodddddnezzzからリブログ: