Bruce gets the "logo" for the math-magic section of the museum
The high-voltage electricity shop
Cool electromagnets and filings
You can click on the first 4 images to get HUGE images
A geartrain ending in granite.
The times for 1 rev are: 15 Seconds, 12.5 minutes, 10.4 Hours,
21.7 Days, 2.97 Years, 148.5 Years,
7,427 Years, 371,000 Years, 18 Million Years,
928 Million Years, 46 Trillion years and finally, 2.3 Billion years!!!
Cool pattern generator
Spinning strings and lights
Blowing fabric and lights.