Transistors
Since John Bardeen, Walter Brattain, and William
Shockley created the first transistor in 1947,
these electrically controlled switches have come
out in many different forms. Here, two new old
stock germanium transistors look on with pride at
a much smaller, cheaper silicon transistor.
The smallest transistor created so far was just
2.5 nanometres wide. You could fit approximately
9,273,600,000,000,000 of them on this page.