+1Walter wrote: ↑Thu May 14, 2020 11:51 amThere 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.
Are the calculators magnet-proof?
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- Posts: 84
- Joined: Mon Mar 16, 2020 9:37 am
- Location: France
Re: Are the calculators magnet-proof?
Olivier de Nantes (Bretagne)
HP41 (x3 : 2CV / 1CX), HP 42S, HP 48G+, HP 71B, HP 15C LE, HP 35S, HP PRIME
DM41L, DM 41X (Beta - SN: 00078), DM 42 (SN: 1028)
HP41 (x3 : 2CV / 1CX), HP 42S, HP 48G+, HP 71B, HP 15C LE, HP 35S, HP PRIME
DM41L, DM 41X (Beta - SN: 00078), DM 42 (SN: 1028)
Re: Are the calculators magnet-proof?
see it in action: https://www.youtube.com/watch?v=KlJsVqc0ywMWalter wrote: ↑Wed May 13, 2020 9:51 pmThanks for sharing. 16 T is huge!RAPo wrote: ↑Wed May 13, 2020 8:31 pmwell you need 16 T in order to levitate a frog (https://www.newscientist.com/article/mg ... irrelevant).
DM41X beta: SN00018.
DM41X: SN00496.
DM42 beta: SN00074.
DM42:SN06020.
DM42 converted to C47 SN08973
DM10L: SN056/100.
DM11L: SN 02058.
DM15L: SN2074.
DM16L: SN2156.
DM15, DM16, DM41
and a whole bunch of the original HP's,
DM41X: SN00496.
DM42 beta: SN00074.
DM42:SN06020.
DM42 converted to C47 SN08973
DM10L: SN056/100.
DM11L: SN 02058.
DM15L: SN2074.
DM16L: SN2156.
DM15, DM16, DM41
and a whole bunch of the original HP's,
Re: Are the calculators magnet-proof?
weel we already have maglev trains. Never say never: https://www.youtube.com/watch?v=ZLkP6S6mKsYtoml_12953 wrote: ↑Thu May 14, 2020 5:16 amFlying cars* anyone?RAPo wrote: ↑Wed May 13, 2020 8:31 pmwell you need 16 T in order to levitate a frog (https://www.newscientist.com/article/mg ... irrelevant).
* All the rage in views of the future from the 1930s to the '50s
DM41X beta: SN00018.
DM41X: SN00496.
DM42 beta: SN00074.
DM42:SN06020.
DM42 converted to C47 SN08973
DM10L: SN056/100.
DM11L: SN 02058.
DM15L: SN2074.
DM16L: SN2156.
DM15, DM16, DM41
and a whole bunch of the original HP's,
DM41X: SN00496.
DM42 beta: SN00074.
DM42:SN06020.
DM42 converted to C47 SN08973
DM10L: SN056/100.
DM11L: SN 02058.
DM15L: SN2074.
DM16L: SN2156.
DM15, DM16, DM41
and a whole bunch of the original HP's,
Re: Are the calculators magnet-proof?
I'll doubt that. There is not such a thing as resistance to diamagnetism https://phys.libretexts.org/Bookshelves ... amagnetismWalter wrote: ↑Thu May 14, 2020 11:51 amThere 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.
DM41X beta: SN00018.
DM41X: SN00496.
DM42 beta: SN00074.
DM42:SN06020.
DM42 converted to C47 SN08973
DM10L: SN056/100.
DM11L: SN 02058.
DM15L: SN2074.
DM16L: SN2156.
DM15, DM16, DM41
and a whole bunch of the original HP's,
DM41X: SN00496.
DM42 beta: SN00074.
DM42:SN06020.
DM42 converted to C47 SN08973
DM10L: SN056/100.
DM11L: SN 02058.
DM15L: SN2074.
DM16L: SN2156.
DM15, DM16, DM41
and a whole bunch of the original HP's,
Re: Are the calculators magnet-proof?
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?RAPo wrote: ↑Thu May 14, 2020 8:07 pmI'll doubt that. There is not such a thing as resistance to diamagnetism https://phys.libretexts.org/Bookshelves ... amagnetismWalter wrote: ↑Thu May 14, 2020 11:51 amThere 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.
(Else please show me a proper bar of Swiss chocolate levitating. )
WP43 SN00000, 34S, and 31S for obvious reasons; HP-35, 45, ..., 35S, 15CE, DM16L S/N# 00093, DM42β SN:00041
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- Posts: 795
- Joined: Wed May 03, 2017 7:46 pm
- Location: Malone, NY USA
Re: Are the calculators magnet-proof?
I had one that levitated but chocolate (especially Swiss or Belgian) never lasts long when I'm around (or is that a round?)
Tom L
Some people call me inept but I'm as ept as anybody!
DM10L SN: 059/100
DM41X SN: 00023 (Beta)
DM41X SN: 00506 (Shipping)
DM42 SN: 00025 (Beta)
DM42 SN: 00221 (Shipping)
WP43 SN: 00025 (Prototype)
Some people call me inept but I'm as ept as anybody!
DM10L SN: 059/100
DM41X SN: 00023 (Beta)
DM41X SN: 00506 (Shipping)
DM42 SN: 00025 (Beta)
DM42 SN: 00221 (Shipping)
WP43 SN: 00025 (Prototype)
Re: Are the calculators magnet-proof?
Iḿ sure you could put any chocolate bar on this plate: https://www.youtube.com/watch?v=p7AVGPoJYtU,
DM41X beta: SN00018.
DM41X: SN00496.
DM42 beta: SN00074.
DM42:SN06020.
DM42 converted to C47 SN08973
DM10L: SN056/100.
DM11L: SN 02058.
DM15L: SN2074.
DM16L: SN2156.
DM15, DM16, DM41
and a whole bunch of the original HP's,
DM41X: SN00496.
DM42 beta: SN00074.
DM42:SN06020.
DM42 converted to C47 SN08973
DM10L: SN056/100.
DM11L: SN 02058.
DM15L: SN2074.
DM16L: SN2156.
DM15, DM16, DM41
and a whole bunch of the original HP's,
Re: Are the calculators magnet-proof?
IIRC that's not diamagnetism here. Don't cheat!RAPo wrote: ↑Thu May 14, 2020 10:16 pmIḿ sure you could put any chocolate bar on this plate: https://www.youtube.com/watch?v=p7AVGPoJYtU,
WP43 SN00000, 34S, and 31S for obvious reasons; HP-35, 45, ..., 35S, 15CE, DM16L S/N# 00093, DM42β SN:00041
Re: Are the calculators magnet-proof?
Yes, the short half-live of chocolate observed in scientific environments is a major experimental challenge ...toml_12953 wrote: ↑Thu May 14, 2020 9:54 pmI had one that levitated but chocolate (especially Swiss or Belgian) never lasts long when I'm around (or is that a round?)
WP43 SN00000, 34S, and 31S for obvious reasons; HP-35, 45, ..., 35S, 15CE, DM16L S/N# 00093, DM42β SN:00041
-
- Posts: 84
- Joined: Mon Mar 16, 2020 9:37 am
- Location: France
Re: Are the calculators magnet-proof?
There is Mg in chocolate, but not enough FeRAPo wrote: ↑Thu May 14, 2020 10:16 pmIḿ sure you could put any chocolate bar on this plate: https://www.youtube.com/watch?v=p7AVGPoJYtU,
Olivier de Nantes (Bretagne)
HP41 (x3 : 2CV / 1CX), HP 42S, HP 48G+, HP 71B, HP 15C LE, HP 35S, HP PRIME
DM41L, DM 41X (Beta - SN: 00078), DM 42 (SN: 1028)
HP41 (x3 : 2CV / 1CX), HP 42S, HP 48G+, HP 71B, HP 15C LE, HP 35S, HP PRIME
DM41L, DM 41X (Beta - SN: 00078), DM 42 (SN: 1028)