Magnet University - 1

[xXitzGucciXx]

its like in the air and stuff

[Convolutedtear]

maybe I am not sure, but would it be helpful to put in type as your talking (in edit) what magnets and the casing is made of ... I kept getting sidetracked with that question :p are all magnets made of this? etc

[qualitatserzeugnis]

Congratulations !! very professional and easy to understand !

[ecthompson99]

I have a question. Why does the force of magnetism reduce as you add magnets together? I'm looking for the scientific answer.

Also, is there a point where so many magnets are added that the force reverses and begins to reduce the magnetic field? Or does the percentage change just continue to decrease but the net force always increases?

I hope those questions make sense. Thanks!

[Pikefish]

Er... the field strength wasn't decreasing, just that the PERCENTAGE INCREASE was not the same as the magnet volume increase, in the first example it gave 70% more field strength for 100% more volume of magnet.

Eventually you get no increase when you add more magnets because either the NIB or the nickel becomes saturated, or some other composite reason. Either way, it doesn't get any smaller, it just stops getting bigger.

Would have been clearer if he'd just compared the multiples to the single.

[jcobaltss2005]

most likely changes the structure of the field lines so it would depend where you place them, but in my experience it always seems to add power when more magnets are introduced

[hypnotekk]

because of the increasing thickness of the outer layer of the magnet, as your magnets get bigger.

thin magnets have thin casing. therefore, better flux.

[Convolutedtear]

@hypnotekk thanks for clarifiying I was thinking this but wasn't sure :)

[dreckka]

great stuff!!!

[OptimusGonzoo]

dang, they don't teach you any of this stuff in school! awesome video, thanks for making it!

[MrfixitRick]

Thanks for this video...it really helped explain some questions I had about magnet size vs strength.

[SuperMagnetMan]

Part 2 - So the north pole lines induce a north pole alignment on the ferrous material. Therefore the south pole is facing the north pole behind it. I explain this to elementary school kids as being like when they line up to leave the room. Since North is attracted to south, the 2 objects pull towards each other and the rate that they move towards each other intensifies as the distance reduces which is why they accelerate towards each other with blinding speed. I hope this helps.

[SuperMagnetMan]

Part 1 of 2 - interesting question. Since no one really knows what magnetism is, i will start by just referring to it as "lines of magnetism". As the lines of magnetism leave the surface of a magnet they have an alignment where one end is north and the exact opposite end is south. A ferromagnetic material has a physical property where its magnetic domains align themselves exactly as the lines of magnetism hitting them.

[mutwa]

Have you heard of Ed Leedskalnin? I believed he knew what magnetism was. He wrote a free book called, "Magnetic Current." Its free online so maybe you might want to check it out. Good videos btw.

[reelsask]

why do magnets attract metal.