Licht, Waerme, Strahlen / Magnetismus, Elektrizitaet, Induktion / Daemonen und Geister

Licht, Waerme, Strahlen / Magnetismus, Elektrizitaet, Induktion / Daemonen und Geister

Reflection of Heat Radiation
Demonstration device, around 1810

When aligned precisely, the flame of a candle at the focal point of the first concave mirror lights a second candle located at the focal point of the second concave mirror.

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