Playing Outside: How To Build a Backyard Swing Set Crosscut the wood for the steering yoke; cut the curve on its front edge using a jigsaw. Use a 20-tpi blade rated for cutting curves.

That's because, back in 1758, Darwin had designed a carriage steering mechanism that is essentially just like the Ackermann steering geometry that is used (in some form) by almost every modern car.

Journey into the past and discover the essential role of the old wooden wagon cart with wooden wheels in 19th-century agriculture. This video takes viewers on a detailed exploration of vintage ...