Stefan Hartman provided this url to the freenrg list
about possible way to extract energy from a 'magnetic
battery';
"My experiment : I took the magnetic tape out of one
audio cassette (metal type, which is pre-magnetized in
longitudinal direction) and wrapped it around an
aluminium rod (length: 1 m, round diameter: 8 mm),
which was clamped in a drilling machine for that
purpose.
The tape was wrapped back and forth, making several
layers, and leaving some free space at the rodīs ends.
(The intention is, to imitate the kind of magnetic
field, that appears with electric current. The amount
of flux in such a field depends on the length of the
conductor and the distance to it. Therefore a long and
thin conductor is advantageous. A thinner rod would
have been better.)
Even this "poor" arrangement was successful:
I could measure a DC voltage between the ends of the
rod, even though its resistance is almost zero ohms.
(And even though the audio tape consists of about 85%
plastic carrier material and only a few (< 5) gramms
of magnetic material !)
Actually I expected to find this system
self-amplifying, because the generated current has the
right direction to produce a magnetic field, that
amplifies the generating field.
But unfortunately, it behaves like a self-charging
capacitor : Each time, the voltmeter is connected, the
voltage goes down like a capacitor discharging curve
(from about 50 mV to 10 mV in about 1 minute).
It seems, somehow the magnetic field collapses
(slowly), but obviously it is not destroyed, īcause it
can recover very fast.
That means: to get energy out of this system, the
tapping must be pulsed.
--------------------
Could be just loading the capacitor from too low an
impedance but I thought it interesting that there was
any voltage present in the first place just from tape
wrapped around a form.
===
=================================
Please respond to jdecker@keelynet.com
as I am writing from my work email of
jwdatwork@yahoo.com.........thanks!
=================================
_____________________________________________________________
Do You Yahoo!?
Free instant messaging and more at http://messenger.yahoo.com