Mechanical watches, for example, are analog computers in which the seconds, minutes, and hours needles in the clock are driven by the constant and periodic rotation of interconnected gears.

Researchers at Cornell University have developed an electronic chip that they describe as a "microwave brain." The simplified ...

A slide rule is another example. Although special-purpose, complex analog computers are built, almost all computers are digital. Digital methods provide programming flexibility. See digital computer.

Here is another little analog computer example. Instead of the 100-kΩ resistor going from the summing point of A4 to the output of A3, we could have a 50-kΩ resistor going to the tap of a 50-kΩ ...

We have to wonder, if digital computers didn’t work out, what the state of the art would be today in analog computing. After all, we had an analog laptop in 1959. Sort of.

“In the 1930s, for example, Vannevar Bush—who a decade later would help initiate and administer the Manhattan Project—created an analog “differential analyzer” that computed complex ...

The analog computer of decades-gone-by is something many of us younger engineers never got the chance to experience first hand. It’s pretty much a case of reading about them on these fine pages ...

For example, a pen sticking out of a glass of water looks bent because the water surface refracts or "bends" the light; light traveling from the pen to the viewer from below the water line has a ...