Magnetic Sand Timer
-
Product Description
What's the secret? A powerful rare earth magnet is hidden in the base. Set the device on its stand and watch the metal grains arrange into a beautiful, spiked sculpture. A different pattern is formed each time you turn it over as the ferrous material is drawn into the magnetic field.
Not intended as a real-time-keeping device; actual times will vary.
-
Reviews
-
-
Product Details
- Product Type: Science & Tinkering Kits
- Collection: Gifts Under $15