Re: is the magnetic field really moving?

In article <g77kr22qe8@[EMAIL PROTECTED]
>, phil-news-nospam@[EMAIL PROTECTED]
 
wrote:

> 
> If the magnet (full circle) is rotated around Faraday's stationary disk,
what
> is the disk "seeing" from the field?


Here is a simple experiment. Take a round disk of aluminum. Drill a 
small hole through its center. Suspend it from a fixed point using a 
fine nonmagnetic wire or monofilament. A drop of acrylic cement might 
help. This makes for a sensitive torsional pendulum.

Drive a disk magnet such as rare earth magnet to twist the pendulum in 
case the field moves with the magnet. The disk magnet should be 
magnetized along its thickness and mounted parallel to the aluminum 
disk. Use a glass ****eld to keep the pendulum from turning by windage. 
You also have to make sure that a magnetic field from the turning source 
does not reach the aluminum.

Compare the deflection of the pendulum that way to what it is when a bar 
magnet is mounted its north-south direction parallel to the aluminum 
disk.

Go win a Nobel prize.

Bill