IDEAS/OPTIONS

DEMO: fire-extinguisher cart with person

DEMO: bending of a wall

DEMO: Hero's engine

CONTENT NOT ON NOTES PAGE

DEMO: Hit nail with hammer.

DEMO: balloon whizzing around

DEMO: propeller on a stick

VIDEO: Launch of shuttle or expendable rocket.

VIDEO: firing a gun or cannon, see recoil

VIDEO: person walking on a floating log