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Topic: Newton's Nightmare
Message: Posted by: htmagic (Nov 11, 2016 10:33PM)
I originally got a trick like this quite some time ago that worked using the same principle.
My version was a three foot long 1/2-inch diameter copper tube and a ball bearing.

This is a more modern version of my same trick but the holes allow the audience to see what is going on.
Pretty cool trick and the science behind it is even cooler.
https://youtu.be/99mibzCAmDE
Message: Posted by: Doc Willie (Apr 17, 2017 10:36AM)
I made one up myself from copper pipe and super magnets. It really should be called Maxwell's Revenge. But then I am a nerd.
Message: Posted by: htmagic (Apr 17, 2017 11:44AM)
Yeah, when I do the trick, I want to expose it as it blows people's minds.
The science is more cool than the magic in this sense!
Message: Posted by: MrWizard (Aug 18, 2017 04:21PM)
I love this trick the science behind it is fascinating. If you tilt the tube a little it slows it down even more except when the spec tries it. I have another apparatus that really shows off this principal it is called Feel Flux. Uses a large round neodymium magnet and the tube is solid copper very thick it slows the ball down to a crawl super amazing to watch. I recommend getting one if you like this effect. They sell it in aluminum and copper. The copper is a must have it makes it float down the slowest. Rapped in leather it has a great look and feel. But for use as a magic effect Newtons Nightmare is great effect for the price.
Message: Posted by: andrew124C41 (Aug 26, 2017 08:57PM)
[quote]On Apr 17, 2017, Doc Willie wrote:
I made one up myself from copper pipe and super magnets. It really should be called Maxwell's Revenge. But then I am a nerd. [/quote]

I made one of these years, and years ago when neo magnets first came out. I developed a routine with a spherical neo and ball bearing. In fact I wanted to sell it and discussed it with James George but for reasons I don't recall, it never worked out.
Message: Posted by: Jonathan Townsend (Nov 16, 2017 02:14PM)
[quote]On Apr 17, 2017, htmagic wrote:
Yeah, when I do the trick, I want to expose it as it blows people's minds.
...[/quote]

Rather than use magic type methods to have the bearing fall up the tube afterwards? Maybe switch the tube for one that does not have that magnetic property?
Message: Posted by: Ben_Fox (Dec 19, 2017 03:06PM)
Copper doesn't technically have any magnetic properties -- it's a really good conductor of electricity, though. The magnet (and Lenz' law) is what's doing all the work. Indeed, you could even take a horseshoe magnet or the like and show it doesn't stick to the tube to demonstrate the tube doesn't have any funky magnetic properties.
Message: Posted by: Senor Fabuloso (Jan 31, 2018 05:54AM)
I use two of these with a participant where at first they can't get it to slow down but after a bit of by play they can do it too. It's really a hoot.
Message: Posted by: mandrax (Feb 4, 2018 10:34PM)
My kids love this one. great way to give them positive feelings about science.
Message: Posted by: wunceaponatime (Feb 15, 2018 02:36PM)
Any tube that is paramagnetic should work. If it can conduct an electrical current then the effect will work via Lenz's Law as mentioned above. Aluminum, copper, steel all will work.
Message: Posted by: goodingda (May 16, 2018 06:02PM)
I recently bought the Wellington version on ebay for $65, a great deal since list price is $150 and it is like-new. I've been in magic over 50 years and never knew about this principle.
With magic, you never stop discovering things!
Message: Posted by: dalo (Sep 23, 2019 05:34PM)
I have seen these at much lover price than you mentioning here.
Is there some reason for this?

It is a cool effect though.
Message: Posted by: Anverdi-museum (Nov 10, 2019 11:05AM)
A few years back I built a coin version of this based on the Lens Principle, you will find it on this brief video below:


https://m.youtube.com/watch?v=olIf5iS3kyI

Chuck
Message: Posted by: tbaer (Nov 11, 2019 06:30PM)
Is the moon rock and the metal strip the only the difference between the Wellington that costs $150.00 and the one I have that cost $15.00 or is there something I'm missing?