• Quincka – Quincke Rotation Physics Sticker

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Quincka

Quincke Rotation Physics

$4.99 USD
$4.99 USD
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Quincka, a silver-haired field-dancer, holds a spinning glowing disc between two plates.

The Physics

In 1896 Georg Quincke saw that an insulating sphere in an oil, placed in a strong steady electric field, can start spinning on its own. Charges pile up on its surface; above a threshold field the arrangement is unstable and a small tilt grows into steady rotation.

E > Ec → rotation

  • E: applied DC electric field (V/m)
  • Ec: threshold field for spontaneous rotation (V/m)

Quincke rollers are now used to build self-propelled colloids that flock like birds.

Honest caveat: The direction of spin is chosen at random; the effect needs the particle to relax charge more slowly than the liquid.

On the sticker

Quincka holds a glowing cyan spinning disc between two upright plates. Printed text: QUINCKA. Pixel-art kiss-cut vinyl sticker, white, in 2″, 3″, 4″ and 6″ sizes.

Shipping calculated at checkout by destinationMade to order, ships in 2–5 business days

Details

Size3″ × 3″

3″ × 3″ kiss-cut sticker.

Shipping

Shipping calculated at checkout by destination. Printed to order for you.

Delivery times & where we ship

Returns & replacements21 days

Every item is printed to order, so we can’t accept returns or exchanges for change of mind, or if you ordered the wrong size or colour.

Print defect, misprint, damage or the wrong item? We’ll send a free replacement, or a refund if you prefer. Report it within 21 days of delivery with a photo; no need to send it back.

Full refund & replacement policy

Field notes

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