Brownian motion: Like C+55+0, with an aluminum disk added.
4D10.20 • C+55+20
Brownian motion: Like C+55+0, with an aluminum disk added. Projected Image of steel ball 'molecules' and 'smoke particle'. Smoke particle is battered by the steel balls. This mechanical device simulates molecular motion. It consists of steel balls that are 'kicked' by vibrating metal bars, and a larger lightweight disk representing a smoke particle. The device is designed to sit on an overhead projector and project an image of the moving balls on a screen. The intensity of the vibration of the balls is controlled by the variac. Variac KINETIC THEORY AND GAS MODELS.
Related Demos
C+55+0
Mechanical model of a gas: Vibrating balls on OHP. C+55+5
Hexstat probability device. C+55+10
Mechanical model of a gas: Vibrating balls strike piston on OHP. C+55+15
Brownian motion: Smoke particles viewed using TV camera. C+55+25
Stoekle's apparatus: Heated tube with mercury and glass bits. C+55+30
Ruchardt's tube: Ball oscillates in a vertical glass tube on jug. C+55+35
Diffusion of Ammonia and HCl. C+55+40
Osmosis of helium through semi-porous cup. C+55+45
Viscosity of air: One rotating disk drives another. C+55+55
Breathe helium, voice pitch rises; breathe SF6, voice pitch lowers. C+55+60
Equipartition of Energy: Different mass balls bounce out at different times. C+55+65
Applet: Gas Properties C+55+70
Applet: A molecular explanation of pressure C+55+75
Applet: Brownian motion C+55+85
Applet: Maxwell's Demon