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So many videos I watch on eddy current experiments only explain how they create a repelling magnetic field. However, they can create an attracting field too... Time to tell about both possibilities.

In my new video, I dig deeper into the eddy current effect by exploring the magnetism of aluminium. Even a mundane drink can will demonstrate the two different magnetic reactions of aluminium.

I also test how cylinders made of different elements roll off a magnet. Can you guess which element rolls of a magnet the slowest: Aluminium, copper or silver?

Find out in my latest video!


200x50 mm magnet donated earlier by magnetportal.de

Files

Previews only

Monster magnet meets aluminum can...

Is aluminium magnetic? The simple answer is no. But in this video, I will show how aluminium actually will react in two different ways to a magnet. Using strong magnets and sensitive setups, even soda cans will have visible reactions. Do you know both of them? And can you guess which element will roll off a magnet the slowest: Aluminium, copper or silver? 200x50 mm disc magnet, 50 mm sphere magnet and one of the 150x50 mm disc magnets donated earlier by https://www.magnetportal.de/ My Patreon-page: https://www.patreon.com/Brainiac75 Old video of mine on eddy currents: https://youtu.be/QJyWaliROPo Old video on how to improve eddy currents experiments: https://youtu.be/nz9N_RlFloM Did you miss one of my videos?: https://www.youtube.com/user/brainiac75/videos FULL MUSIC CREDITS Time codes: 0:01 + 11:07 "Long Note Three" Kevin MacLeod (incompetech.com) ISRC: USUAN1100424 Time code: 0:58 "Energizing" Kevin MacLeod (incompetech.com) ISRC: USUAN1900040 Time code: 2:12 "Fluidscape" Kevin MacLeod (incompetech.com) ISRC: USUAN1100393 Time code: 4:36 "Perspectives" Kevin MacLeod (incompetech.com) ISRC: USUAN1300027 Time code: 8:25 "Adding the Sun" Kevin MacLeod (incompetech.com) ISRC: USUAN1900041 All music above licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/ Time code: 7:56 Mix of two tracks: 1) The Shimmering by fran_ky (freesound.org/s/237363) Licensed under Creative Commons 0 license 2) "Spacial Harvest" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/ ISRC: USUAN1100653 #Magnet #SodaCan #DrinkCan

Comments

Martin Croft

The Force is strong in this one

Anonymous

Yay Eddy currents are so cool! I have an experiment to try now, and I hadn't thought of it until this video: I recently got two (400 mm x 400 mm) sheets of (1.7 mm copper)-sandwiched-between-(0.2 mm steel): any guesses whether a magnet dropped over the sheet will fall faster than gravity, slower, or the same? I'll report back when I try! I don't have any extra large magnets, but I'll try with what I've got 🙂 @Brainiac75: If you want to know where I got the sheets I'm happy to put you in contact! It might make an interesting video 🙂 They shipped from Belgium so it's probably cheaper for you (and it's very useful as a baking sheet/griddle/plancha for tortillas, which is why I bought them haha). I'm actually planning to use induction to turn them into a tortilla press, so very similar physics at work!

Brainiac75

Interesting. "Steel" is a broad term. Many of them are ferromagnetic, others are not (like some of the stainless variants), so it's impossible to predict without further info. Do try it and let me know what happens. And yes, I would like to know where you bought them. Though I am more interested in sheets of mu-metal for building a shielded case/cage for my 150x100mm magnet :D