"Jeff The Drunk" wrote in message
news
On Sun, 06 Jun 2010 11:06:09 -0400, Ralph Mowery wrote:

"john hamilton" wrote in message
...
Have tried using the strongest cuboard magnet I can find (In north
London u.k.), but if the wind picks up surprisingly it will just not
hold. Also

The magnet out of a hard drive is flat and very strong.

Really? What kind of hard drive has a big flat magnet inside? That defies
all logic on the principals of how a hard drive works.

All hard drives, the head arm solenoid uses them. My shed's full of magnets
from HDDs. For example I use them to store sash clamps out of the way on the
ceiling. I've used one from a larger mainframe disk drive to fish 37lb sash
weights from a skip, you've just got to make sure it doesn't touch the side
of the skip.