Most of us associate echolocation with bats. These amazing creatures are able to chirp at frequencies beyond the limit of our ...

If you live near Central Park or some other local chess hub, you’re likely never short of opponents for a good game. If you ...

Stephen] has a basement that depends on a sump pump. What that means is if the pump fails or the power goes out, the basement ...

Analog dials used to be a pretty common way of displaying information on test equipment and in industrial applications. They ...

Folaefolc] was craving a new keyboard build a few weeks ago and got inspired by the humble 3.5″ floppy disk. So much so that ...

Most RC planes follow a simple control scheme: elevators for pitch, rudder for yaw, and ailerons for roll. This one-to-one ...

For a lot of electrical and mechanical machines, there are nominal and peak ratings for energy output or input. If you’re in marketing or advertising, you’ll typically look at the peak ...

There’s an old joke that they want to send an exploratory mission to the sun, but to save money, they are going at night. The European Space Agency’s Solar Orbiter has gotten as close ...

Earlier this year [Skyhawkson] got ahold of an Apollo-era printed circuit board which he believes was used in a NASA test ...

MindYourDecisions] presents a Babylonian tablet dating back to around 1800 BC that shows that the hypotenuse of a unit square is the square root of two or 1.41421. How did they know that? We ...

It is hard to imagine that there was a time when having a keyboard and screen readily available was a real problem for people ...

What if GPS had existed in 1565? No satellites or microelectronics, sure—but let’s play along. Imagine the bustling streets ...