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Seebecka

The Seebeck Effect / V = S ΔT Physics

$4.99 USD
$4.99 USD
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Seebecka, a bearded metalworker, holds a frame of two joined metals glowing hot at one corner.

The Physics

In 1821 Thomas Johann Seebeck joined bismuth and copper in a loop and heated one junction. A compass needle beside it swung. A temperature difference between the junctions drives a voltage, and in a closed loop a current: thermoelectricity. He reported it to the Prussian Academy (Abh. Akad. Wiss. Berlin, 1822–23).

V = S ΔT

  • V: thermoelectric voltage (V)
  • S: Seebeck coefficient difference of the two metals (V/K)
  • ΔT: temperature difference between the junctions (K)

Thermocouples measure temperature this way, and radioisotope generators power deep-space probes with it.

Honest caveat: Seebeck thought he had found ‘thermomagnetism’; the magnet moved because of the current. S itself depends on temperature, so V = S ΔT is linear only over small ranges.

On the sticker

Seebecka holds a rectangular metal frame with a glowing hot corner. Printed text: SEEBECKA with the line V = S ΔT. 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

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