Thursday, August 20, 2009 - Lift and Thrust
I always joke that I learn just as much as Cameron, if not more, as we go through our school work.
Today in science, we learned about lift and thrust. I have heard these terms before but never really understood them.
We did an experiment that shows what lift does for the flight of a bird. Because of the shape of its wings, the air on the top of the wing moves faster than that of the bottom. This creates different air pressures. The air on the bottom is pushing more than the air on the top.
When he blew, very hard, across the the top of the straw in the water, it created a lower air pressure. The air pressure on the rest of the water was stronger than that across the top of the straw and Cameron and I were surprised with a spray of water.
AMAZING! The things I never knew!
