Kit with a Leonhard Euler commemorative medal: On the mirror platform, it spins like a top for up to 1 1/2 minutes with increasing speed and volume.
If you give an upright coin a skilful push, it spins faster and faster until it suddenly comes to a halt with a splash. Thanks to its optimised properties, the dancing disc spins for a particularly long time and is very noisy.
This cardboard kit for a Dancing Disc is a tribute to the brilliant mathematician Leonhard Euler and his memory. He was the first to summarise the spinning process in several mathematical formulas, the Euler equations.
The Dancing Disc is significantly larger and heavier than a normal coin. In addition, the edges of the disc have been optimised to minimise friction losses. This allows it to spin longer and more impressively. Professionals can keep the disc oscillating for over 2 minutes. The kit includes a round mirror that is slightly curved inwards, helping the stainless steel disc to stay close to the centre during its dance.
Give the Dancing Disc a good push with a twisting motion. Due to its weight, it tilts slightly more with each rotation, becoming faster and louder. Put simply, the disc gains the energy it needs for its increasingly faster dance from the approach of its centre of gravity to the base: at the beginning, it is upright, and the force required for this is stored as potential energy ("position energy") in the disc. This is released when the disc tilts, and it is converted into rotational energy.
Contents:
- Cardboard kit for framing the mirror platform
- 2 brass foil stickers for attaching to the coin
- Coin disc with a diameter of 7.5 cm, a thickness of 1.3 cm and a weight of 433 g
- Mirror with a diameter of 20 cm
