10cm Steel Rattleback - Physics Fidget Desk Object, Adults Science Gift, 14+

• A rattleback creates one of the most inexplicable phenomena in the world of science. Measuring 10cm in length and made using high-quality steel alloy, the device will swing counter-clockwise with ease, not unlike a top.
• However, once you try to swing it clockwise, you’ll witness a spin-reversal and will rattle until it comes to a complete stop and reverses its direction. An ancient toy also known as a Celtic or Wobble stone that has been enchanting people of all ages for centuries.
• This is an anagyra (rattleback) with a pronounced reversal, the behaviour of this object truly seems to go against the laws of physics.
• METAL: Stainless Steel. SIZE: 10cm

Product description A rattleback creates one of the most inexplicable phenomena in the world of science. Measuring 10cm in length and made using high-quality steel alloy, the device will swing counter-clockwise with ease, not unlike a top. Directions 1. Hold the rattleback in your hand. 2. Swing it counter-clockwise with ease, like a top. 3. Try to swing it clockwise and observe the spin-reversal and rattling behavior until it stops and reverses its direction.