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Registered Member #10
Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
Goldsphere wrote ...
.. JlnLabs shows a small one here.
From the rules of this forum: "Free energy, electrogravitics, and all other types of pseudoscience are not allowed on any part of this site, nor are links to sites that deal primarily with these subjects."
Tesla did some homopolar generator stuff and has a patent related to it. The biggest one however, was built here in Australia and stored 500MJ. Just great for those 2MA experiments. I am old enough to remember it being used as a railgun supply.
Registered Member #27
Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
I made it work with a proper PSU instead of a battery. Even at 0.5V it welded the bits together all the time so it was a complete pain. A NiMh battery works a lot better.
Registered Member #103
Joined: Thu Feb 09 2006, 08:16PM
Location: Derby, UK
Posts: 845
I was too afraid to use a nimh, at least with my fingers holding the wire
wrote ... How to impress the family ?
well I tried...not much response even after I built one in 30 seconds in front of my Dad.
"So it's just a motor then?" ... "um....yeah, but this is no ordinary motor." ....... "it... it breaks all known laws of physics as well" ... 10 mins later - "I guess we still have a lot to learn then"
Registered Member #53
Joined: Thu Feb 09 2006, 04:31AM
Location: Ontario, Canada
Posts: 638
I set up the homopolar generator and used my drill to spin it. The results were not amasing but they were results none the less. At 1200rpm I got 1mv at 3-4mA.
Registered Member #10
Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
Bjørn Bæverfjord wrote ...
I made it work with a proper PSU instead of a battery. Even at 0.5V it welded the bits together all the time so it was a complete pain. A NiMh battery works a lot better.
Registered Member #10
Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
IamSmooth wrote ...
I am guessing that there is a magnetic field set up in the screw. What is this exerting a force against to setup the spin?
It's 20 years since I had anything to do with the left hand rule but here goes. Basically the magnetic field is directed in lines of force from North to South ie along the axis of rotation -say your index finger pointing downwards. The current goes in towards the centre of the axis of rotation, like pointing with your middle finger at the magnet. The force exerted on the conductor at the point the wire touches the magnet is your thumb and it moves at a tangent to the contact point of the magnet and hence rotates.
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5000RPM in 5 mins
