(Class 2) place the fulcrum at one end of the lever and the effort at the other, with the load in the centre. The closer together the fulcrum and load are, the easier it is to lift the load.

(Class 2) place the fulcrum at one end of the lever and the effort at the other, with the load in the centre. The closer together the fulcrum and load are, the easier it is to lift the load.

Although it is not known exactly how they erected the great obelisks, it's a pretty sure bet that they used levers in some way. In the following activity you're asked to lift one end of a ...

Lifting equipment supplier SkyJacks has secured an exclusive distribution agreement with US company Atlas Lifting and Rigging ...