Demonstrate what Relativity is all about to the class.
All one needs is to cut a cardboard disk out of the cardboard. Draw
arrows on each side of the disk indicating the direction you will be
spinning the disk. Draw arrows on the opposite side in agreement with
the same turning direction. Now walk down the center of the class so
they are split in half with you standing in the center of the class.
Hold the wheel pointing in the direction of the walkway down the
center of the class. Now spin the disk to the direction of the front
of the class where the teachers desk is located. Ask each side of the
class which direction the disk is spinning? Clock wise or counter
clock wise? Which side of the class is correct and why? Forward is
also acceptable and if so then why? Can't get any simpler than that
and yet this is what our world around all of us is based on. Our
present and future interactions with our world come from this simple
principle and so will our new technologies. Relativity!
You don't need flair and sparks to get their minds to working. Let
them use the tools at hand as our founding fathers did. The mind is
the best tool of all. Teach it to think not record. Warren
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