September 27, 2010

These kids are going to build 1st class, 2nd class, and 3rd class levers.

2 plates between two beams allow for 2 friction connectors in a beam at right angles.
This is used to make a stable horizontal to vertical connection.

How far the load is away from the fulcrum makes a big difference in the amount of effort need to move it.

A pencil weighs the same as 17 beans.

With a heavy counter weight, large load can be compared.

LEGO Links of Linda Hamilton
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