2. A machine that reduces friction
! Ball Bearings
! it makes them run more smoothly even when supporting a heavy load.
3. A machine that uses friction
! Hydraulic Saw
! It uses friction when moving up and down
therefore cutting the piece of wood.
4. A machine that reduces gravity
! Air screw
! It reduces gravity by the air pressure pushing up on the spiral
causing gravity to have a lesser effect on the air screw.
5. A machine that uses gravity.
! Automatic hooks
! Gravity is used when the hooks are released
automatically when the object/s are dropped.
6. Our favourite machine
! Our favourite machine is the naval tank because it shoots multiple cannons at
the same time meaning a higher rate of fire and therefore increasing the
chance of hitting the enemy and knocking the enemies ship faster. It also has a
rotating turret which houses several cannons and can rotate a full 360 degrees.
7. Credits
!
Photographer: Mrs. Pratt and Mrs. Gilmore
Publisher: Will, Ben, Saige, Harry.
Primary source: Leonardo exhibition.
Copyright
If you copy you will spend 8 years in prison or if you're a
twelvie nothing will happen.
!