How to tell if a biker has a pin in his leg

Or a pacemaker (not in his leg) ...


http://cgi.ebay.co.uk/NEODYMIUM-MAGNETS-70-60-mm-450-KG-/180622401713?pt=
LH_DefaultDomain_3&hash=item2a0def20b1


couldn't resist that one

delivery 4-6 days

 

Don't they make those medical insert thingies out of non-magnetic metals -
like stainless steel or titanium?

 

Stainless steel is magnetic...

 

Delivered together with 3 boxes of screws, a flat iron, and two padlocks
that the postman couldn't remove from your package, because the crowbar
isn't part of his kit.

 

The stainless used by Kerry ultrasonics to make cleaning tanks wasn't.

The very low grade stainless with higher ferrous content and lower chromium
content for kitchen sinks & washing machine drums usually is.

 

I did wonder how the postman would remove it from the wall of his van...

 

I was more wondering how the courier was going to remove the package
from the floorpan of his van

 

Big thread on this subject on uk.d-i-y

 

Apply a keeper during transport.

 

Close. It depends on whether the steel is austenitic (face centred cubic)
or ferritic (body centred cubic). Austenitic stainless steels are non
magnetic and usually contain nickel and chromium, whereas ferritic are
magnetic and don't contain nickel (and are therfore cheaper).

http://www.azom.com/Details.asp?ArticleID=470

 

<disappointed>

http://en.wikipedia.org/wiki/Magnet_keeper

I should've paid better attention in physics. My C grade O'level is showing

 

And how do you remove it later?

450 kg tug

 

That's where I got the link from

( ...)

 

My lesson came from the school of hard knocks - stripping a Sturmey-Archer
dynohub to clean and grease the bearings, by the time I put it back together
the magnet had lost its power and I no longer had full brightness lights.

 

Sounds like cod science to me.

"magnetic circuit" what a load of old tosh.

Where's the tame physicist when you need him to explain magnetic
theory ?

Paul.

 

2 part split keeper so you can swivel the 2 halves out of alignment,
removing those would be much easier than breaking the grip of a fixed keeper
that completes the path for the lines of flux.

 

For Christ's sake be careful with the bloody thing! I've had some nasty
blood blisters from a couple of small but powerful magnets. That thing
could do some serious damage.

Tim

 

Heh. Well look at :

http://en.wikipedia.org/wiki/File:MagnetEZ.jpg

Imagine the bar on the bottom is magnetic. The "magentic circuit" would, in
effect, be closed.

Imagine placing a piece of paper on it and doing the old iron filing trick.
What do you reckon it'd look like.

BTW, IANAS, so I could be completely off the mark.

 

FWIW None of my pots & pans were magnetic enough to ork with an
induction hob.

 

The electricity must have been goblin the magnetics.