|Thomas Johann Seebeck, Hans Christian Ørsted electromagnetism|
- Thomas Johann Seebeck discovered
- in an electric circuit with a junction of two metals
- that heating or cooling one side of the junction
- resulted in an electric current
- that deflected the arrow of a compass.
- Seebeck thought he had discovered
- a thermomagnetic effect, but Hans Christian Ørsted
- observed that the magnetic deflection
- was a result of the generated current,
- and coined the term thermoelectricity.
Thermocouple and thermopile
- Put a temperature difference across it—
- you generate a voltage
- to measure the temperature,
- which is called a thermocouple,
- or to generate electricity,
- which is called a thermopile.
Not by accident
- It couldn’t have been an accident,
- a circuit tossed together
- from parts remaining from other experiments.
- I have friends who have said
- nothing is accidental.
- Unknowable past lives explain this one.
- Sometimes things click
- when everything makes sense
- and explanations fall into place.