Sign up to receive top stories about groundbreaking technologies and visionary thinkers from SingularityHub. 100% Free. No Spam. Unsubscribe any time. SingularityHub ...

The first known use of humans using wind to perform mechanical work with machines dates back to ninth-century Persian windmills. But if we count sailing vessels among those machines, the history goes ...

If you grew up in a snowy climate, chances are you’ve ridden a sled or toboggan when you were young. The downhill part of sledding is great fun, but dragging the thing back up gets boring quickly.