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
Hourglass inside the cylinder is a 5 minute timer.
Timer was given as a gift and recipients loved it! Blue color quite attractive. They had never seen a gravity timer before.
Service was prompt and packaging was perfect no damage in transit.
The 5 Minute Newton Gravity Timer I orginally received had evidently cracked so water was in the sand. I returned it and received a replacement which is great! I can't wait to give it to my sister who saves hourglasses. This will be a unique addition to her collection.
Thank you again.
Replacement was received most likely quickly. I was away for three weeks and just returned home last night. I opened my mail today and the timer is in perfect shape!! Thanks again.
This is our best selling hourglass and it's easy to see why - cherry finished wood contrasting with white sand, this sand timer is a classic and sells out every...
Filled with vibrant red sand this is a heavy, substantial piece. The hourglass is encased in acrylic, protecting it from breaking, making it an ideal gift for children (or children...
Timeless pieces, hourglasses are a fun and useful way to keep track of your phone calls, let you know when dinner is ready or as a time management tool for...