Are the calculators magnet-proof?

[Olivier de Nantes]

There shouldn't be any problem with any modern pocket calculator as long as we talk about static magnetic fields and the calculator isn't moving fast. Reasons are given in post #2. And since the calculator back is made of stainless (austhenitic) steel, it won't even start moving fast on its own. So don't worry, be happy.

+1

[RAPo]

well you need 16 T in order to levitate a frog (https://www.newscientist.com/article/mg ... irrelevant).

Thanks for sharing. 16 T is huge!

see it in action: https://www.youtube.com/watch?v=KlJsVqc0ywM

[RAPo]

well you need 16 T in order to levitate a frog (https://www.newscientist.com/article/mg ... irrelevant).

Flying cars* anyone?

* All the rage in views of the future from the 1930s to the '50s

weel we already have maglev trains. Never say never: https://www.youtube.com/watch?v=ZLkP6S6mKsY

[RAPo]

There shouldn't be any problem with any modern pocket calculator as long as we talk about static magnetic fields and the calculator isn't moving fast. Reasons are given in post #2. And since the calculator back is made of stainless (austhenitic) steel, it won't even start moving fast on its own. So don't worry, be happy.

I'll doubt that. There is not such a thing as resistance to diamagnetism https://phys.libretexts.org/Bookshelves ... amagnetism

[Walter]

There shouldn't be any problem with any modern pocket calculator as long as we talk about static magnetic fields and the calculator isn't moving fast. Reasons are given in post #2. And since the calculator back is made of stainless (austhenitic) steel, it won't even start moving fast on its own. So don't worry, be happy.

I'll doubt that. There is not such a thing as resistance to diamagnetism https://phys.libretexts.org/Bookshelves ... amagnetism

Well, you're right in principle but I was talking about a modern pocket calculator: this typically means a device of some 50 to 100 grams. And I implicitely presumed accessible areas where you can operate such a calc - by careful scaling the video you linked I'd guess I'd hardly succeed putting my hand in your frog-levitating magnet. For sake of truth, I admit my above post applies to 99.999999% of the surface of our home planet only (but those who enter the other 0.000001% usually are well aware of the special conditions there). Agreed?

(Else please show me a proper bar of Swiss chocolate levitating. )

[toml_12953]

(Else please show me a proper bar of Swiss chocolate levitating. )

I had one that levitated but chocolate (especially Swiss or Belgian) never lasts long when I'm around (or is that a round?)

[RAPo]

(Else please show me a proper bar of Swiss chocolate levitating. )

Iḿ sure you could put any chocolate bar on this plate: https://www.youtube.com/watch?v=p7AVGPoJYtU,

[Walter]

(Else please show me a proper bar of Swiss chocolate levitating. )

Iḿ sure you could put any chocolate bar on this plate: https://www.youtube.com/watch?v=p7AVGPoJYtU,

IIRC that's not diamagnetism here. Don't cheat!

[Walter]

(Else please show me a proper bar of Swiss chocolate levitating. )

I had one that levitated but chocolate (especially Swiss or Belgian) never lasts long when I'm around (or is that a round?)

Yes, the short half-live of chocolate observed in scientific environments is a major experimental challenge ...

[Olivier de Nantes]

(Else please show me a proper bar of Swiss chocolate levitating. )

Iḿ sure you could put any chocolate bar on this plate: https://www.youtube.com/watch?v=p7AVGPoJYtU,

There is Mg in chocolate, but not enough Fe