Metal Liquid Hourglass

Only one left!

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!: Newton's Gravity Glass Video

Specifications:

• 1.5"D x 8"H
• Approximately 1-2 minute with white sand
  

Hourglass Sand Timer Accuracy

Shipping Info

Returns Info