What is powering the Voyager 1? It has been travelling in the space for almost 50 years.
In: Technology
To explain the batteries in a different way.
Think of a nuclear power plant. A power plant drives a reaction to make uranium or plutonium break down fast, which makes heat, which boils water, which spins a turbine, which spins a generator to make electricity.
A radioisotope thermoelectric generator cuts out all the moving parts from a power plant at the expense of not getting a lot of power out of the unit. On the upside the battery lasts for a very long time. You basically have something that stays “hot” (or warm enough) and something cold and you use the difference to make electricity
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