Re: ATM A little electronic help on my Foucault tester

["Nils Olof Carlin" <nilsolof.carlin@telia.com>]

> OK.  Now, how do these compare to more familiar units like watts.  Is a lumen directly
> convertable to watts?  Or, perhaps a lumen is essentially "color blind", in effect
> counting photons without regard to their energy?  I have actually wondered about this for
> a number of years and have never put forth the effort to find out.  If someone knows, I
> would sure like a short explanation.

A *short* explanation is perhaps not what you get at:
http://hotel04.ausys.se/pausch/comp/radfaq.html
but it could be worth checking, anyway.

Nils Olof

> Mark Holm