Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
Renovating the wheel

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.



Magnetized coins

Automatically clump or stack
  [vote for,

There's a previous idea for magnetic coins [link] but that doesn't specify the orientation of the magnetic field and does specify that the coins have discrete magnets embedded in their centers.

This idea differs by saying that the coins are just made of a magnetic metal (as all current Canadian coins already are) that is magnetized at the mint and remagnetized whenever the coins go through a bank or maybe even a vending machine.

It also differs in specifying that the coins are magnetized radially, rather than axially, so that rather than e.g. the obverse being north and the reverse being south (axial magnetization), they're magnetized across the width of the circle. But even that's not all: it's not just one north and one south pole, but alternating N–S–N–S across the width, four poles in total.

This means that the coins can be stacked directly on top of each other, which is convenient in counting and rolling but not in pocket carry, and can also be stacked offset to form a sort of flattish pyramidish clump, which is convenient for pocket carry. You can convert from one to the other with a bit of sliding and rearranging.

I'm not entirely sure how well this would work with coins of different sizes—maybe they'd just have to have the same pitch of north and south poles, or maybe they can accommodate enough of a difference in pitch that they can all have the same number of poles across their widths.

n/a [2019-03-11]

notexactly, Mar 12 2019

Prior art by [MikeOliver] Magnetic Coins
Differences as described in idea description [notexactly, Mar 12 2019]


       Can you really have alternating poles in one piece of metal? Wont the coin RIP ITSELF APART!?
bungston, Mar 13 2019

       [Bung], have you been hanging out with the Flat Earthers again?
Sgt Teacup, Mar 13 2019


back: main index

business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle