Thursday, August 22, 2013

Whirlygig!

We tried out this home made propeller in our wind tunnel.
The wind tunnel was made using a variable speed electric fan.

Saturday, August 17, 2013

Hydraulic Car

A few weeks ago we made a hydraulic car.

Unlike air, water can not be compressed. We use this principle to lift the body of a wooden car.

Watch it work:


There are complete instructions on the Community Science Workshop Network website. Search "hydraulic."