Posted by & filed under Snippets.

Well explained and excellently illustrated post on the history of cranes and lifting devices – from “simple stuff” like the pyraminds to all kinds of ingenuity.

The sky is the limit: human powered cranes and lifting devices

(snip)

We could lift anything without fossil fuels. Nevertheless, apart from their use by some hardcore ecological architects, human powered cranes have completely disappeared, even for the lightest of loads. We prefer lifting things with power machinery and we run (not walk) on a treadmill in the gym to keep in shape.