September 01, 1996 Filed in:
Demo CornerPatrick Whippey, Department of Physics, University of Western Ontario
pwhippey@julian.uwo.ca
Something wonderful happened in my Physics 21 class just before Christmas last year. There was excitement, wonder, great mutual support, and just plain fun as one hundred and twelve students demonstrated 52 experiments in 52 minutes.
Read More... June 01, 1996 Filed in:
Demo CornerEknath V. Marathe, Consultant, STS Education
The sailboat provides one of the most interesting illustrations of vector resolution.
Read More...Tags: Forces
March 01, 1996 Filed in:
Demo CornerMurray D. Kucherawy, A.B. Lucas S.S., London
Effective classroom demonstrations often require tinkering with temperamental equipment. With the permission of the editor, I would like to share a “thought demonstration” that requires no equipment, but which still makes a surprising point.
Read More...Tags: Motion
January 01, 1996 Filed in:
Demo CornerAl Bartlett, University of Colorado
Fill a one-litre graduated cylinder with water; the cylinder should be about 5 to 8 cm in diameter and 30 to 40 cm tall. Take an ordinary glass marble and try to drop the marble into the water in such a way that the marble will fall all the way to the bottom without first hitting the side of the cylinder. The marble makes an audible click every time it hits the glass wall.
Read More...Tags: Fluids, Pressure
