Today I tested about fifty different substances and thoughts using the technique pioneered by Thomas Lethbridge and met with much success. By perusing and comparing Lethbridge’s results with mine, one can see that the rates for many of the same things are either identical or off by about an inch to an inch-and-a-half at most.
Click on the link below to watch my demonstration of obtaining a “rate” for a particular substance or object with a pendulum:
Obtaining inch-rates for things with a pendulum