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5 Minute Newton Gravity Timer

GWS035-1

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Newton's Gravity Glass is a sand-filled hourglass suspended in a liquid-filled glass cylinder.

Measures 5 minutes of time with either blue, yellow, or purple color liquid. A perfect corporate gift!

The Gravity glass is an awesome desk-topper and a question-generating eductional tool. When the cylinder is flipped, the sand within the hourglass moves down while the hourglass itself floats up

8" tall

Hourglass inside the cylinder is a 5 minute timer.

Hourglass Sand Timer Accuracy

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