Description
- Material---Silver steel. Size: 6.9x4.5 inch
- Shows Newton's law of conservation of energy, novel and interesting, simple design but works great!
- A great gift for children, arouses and develops their interest in physics. Just put the steel little man on the cylinder base, and give it a gently push, then it will swing like a tumbler. It also balances on other places, you can have a try
- Great decoration for bedroom, office and computer table, it can be a great gift to your families or friends.
- Swing time---The toy continue in perpetual motion for ONLY 2-3 minutes due to the resistance of the air and friction. It swings and slow down the speed when time passed and finally stop.
Attractive design makes a lovely present. Note: This is a sand timer made. It is not a precision timing device, so there is time deviation. Give as a gift or keep to yourself for the perfect cup of tea every morning
