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Newton's Gravity Glass is a sand-filled hourglass suspended in a liquid-filled glass cylinder. The chrome Gravity glass is an awesome desk-topper and a question-generating educational tool. When the cylinder is flipped, the sand within the hourglass moves down while the hourglass itself floats up. Standing 8" tall, this metal timer is sturdy and well crafted. Watch it in action!: https://youtu.be/TytJDURrVyo
Specifications:
- 1.5"D x 8"H
- Approximately 1-2 minute with white sand
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