WT8R wrote:
>In a message dated 2/7/03 7:19:57 PM Eastern Standard Time,
>
>Eric,
> You can speculate all you want and by plugging numbers into formula,
>get almost any number you want by making assumptions. Lets look at the real
>world of results.
>
> I worked in a basic research labortory where we used a pulsed
>solenoidal DC magnet which generated such a strong field that it had to be
>cooled by liquid nitrogen before it was activated so that it would not
>destroy itself. The conductors carrying current to the magnet had to be
>restrained by heavy wooden boards to prevent them from moving. The field
>outside the magnet was so strong that it picked up a pair of scissors which
>were inadvertantly left laying on a work bench 10 feet away and buried them
>in the wooden shroud surrounding the magnet. The scissors ended up on a
>radius of the axis of the magnet.
> No small force here.
From the evidence of the scissors, the cables were in a very large stray
field, so you could expect the force to be greater. Ye cannae escape the
laws o' physics!
--
73 from Ian G3SEK 'In Practice' columnist for RadCom (RSGB)
Editor, 'The VHF/UHF DX Book'
http://www.ifwtech.co.uk/g3sek
|