Mecanweithiau

Defnyddiau Gwers

Gears and mechanisms Two Opus publications looking at gears and mechanisms.(S.Smith)

Moving toys - cams Cam mechanisms operate levers to create a toy.

Edrych ar bympiau niwmateg Looking at pneumatic mechanisms and how they may cause a lever to move.

Build your own siege engine Design your own siege engine and change variables to try out an interactive mangonel.