The inclusion of tops is a pleasant surprise. The Whee-lo a bigger surprise.
The December issue of Scientific American has 12 suggestions for brainy toys for the kids, submitted by scientists and educators. One of them is a "non-stop top with built-in light show":
I saw the first one of these at Worlds 05 when Taka had one (they are originally from Japan) and I got one in 06 from Grand Illusions, but they have come down substantially in price (an Amazon.com seller has it at $11.74). It always surprised me that it worked so well.
This is what Sciam says:
"The battery-powered to has a motor with an eccentric-weight inside that keeps it spinning until the battery turnsout. Matt Moses, who just earned his Ph.D. in mechanical engineering at John Hopkins, asks these questions when showing it to students:
1. Would the top work if you spun it on a friction-less surface?
2. Suppose you were in orbit inside the International Space Station. If you spun it in midair, would it still work?
3. If the weight inside were not eccentric - that is, if it were perfectly balanced on the motor - would the top still work?
4. Does the weight spin in the same direction the top is spinning in or in the opposite direction?"
I thought I knew how this thing worked, but question 3 has got me thinking . . .
I heard a radio news piece about Beyblades yesterday morning.
I heard something about national and world contests but it was the alarm clock and I was half asleep. I need to look it up.