2. A Machine That Uses
Friction:
Bicycle- The chains on the bike move the
wheels creating friction so the person is
transported slowly of fast depending on
how much power you pedal.
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3. A machine that
reduces friction
Ball Bearing-
Eight concave sided spindles
rotating on their own axis
preventing sideways movements
by the balls.
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4. A Machine That
Reduces Gravity
Pulleys- Leonardo invented various
types of pulleys, some simple and
others extremely complex. In this
model one person can lift a heavy
load without them straining
themselves due to the distribution of
the weight
5. A Machine That Uses
Gravity
Parachute-
Using gravity when a person uses a
parachute the linen pulls the air
into the pyramid slowing down
their fall.
6. FAV MACHINE
Spring powered car-
Using springs and friction to
move the car. Also, I think that
Leo was WAY ahead of his time
building a prototype of a car
without electricity or horses.
7. Thanks to Mrs. Pratt and Mrs. Gilmore for taking us to this wonderful exhibition
Copyright 2014
Pictures from private source
Special thanks to my brain for remembering this without my notebook
And to Mrs. Jones for letting me have extra time
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