Transistors

We've made more of them than any other man made thing.

Amazing.

Graphic: Transistor Production Has Reached Astronomical Scales - IEEE Spectrum:

In 2014, semiconductor production facilities made some 250 billion billion (250 x 1018) transistors. This was, literally, production on an astronomical scale. Every second of that year, on average, 8 trillion transistors were produced. That figure is about 25 times the number of stars in the Milky Way and some 75 times the number of galaxies in the known universe.

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