1. Rotate a cylindrical magnet on its long axis below a stationary
copper disk and current will not be induced into the disk.
2. Glue the disk to the end of the magnet and rotate both of them
together and a current will be induced in the disk.
3. Rotate the disk and keep the magnet stationary and a current will be
induced into the disk.
These observations were made by I believe Maxwell.
What does this tell us? Well, as I observed several years ago, it tells
us that the field in the cylindrical magnet does not rotate as the
magnet itself rotates about it=92s long axis. Now the first question I
have is why has every one who has ever constructed one of these devices
for testing gone to the trouble of rotating a god awful heavy magnet
instead of just rotating the disk? I think DePalma=92s device had a
cylindrical magnet weighing on the order of hundreds of pounds. I
believe I have also read, on the old Keely Net BBS, about an engineer in
India who works for one of the state run utilities, and whose name I
will not even attempt to spell, constructed a similar device. Claims
have been made that he was able to extract several kilowatts of usable
power from this version of the homopolar generator again by rotating a
heavy magnetic cylinder. Picking current off of the edge of a disk with
a brush is hard to do because the brush erodes quickly due to the high
linear velocity of the disk rim.
My friend told me that homopolar generators are used on submarines for
generating power to run the electrical induction motors to spin the
screw. Remember, nuclear subs use reactors to boil water, not to spin
the propeller. So the technology of the homopolar generator is actually
used and I understand that there are electrical welders that use the
same generators in motor generator sets.
Now here is where your unique observations (my son is going to love me
for this because we have not performed any useful experiments for over a
year) are invaluable. Instead of rotating a heavy disk and extracting
current with a set of brushes I=92ll bet a wire cage, as you described,
shaped to intersect the magnetic field not only at the end of the magnet
but along side the magnet where each wire provides a closed path to a
slip ring assembly that allows power to be taken and rectified.
I'm in the process of moving from Southern California to San Jose
(silli-con valley). My workshop will be back in operation around Jan =929=
9
then the boy and I are back in operation. BTW, he loved one of your
responses in a private email about building an anti-gravity vehicle
where you said that all of us believers would someday be able to fly
over the non-believers and spit on them. He was thinking about his non
believing brother (sibling rivalry and all).
Thanks for keeping the faith.
Pat
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