RE: [ATM] ATM: What do they offer:

["Richard Schwartz" <richas@earthlink.net>]

At last night's meeting, one of the attendees mentioned that incandescent
lights have a cold starting resistance that is only 1/10 the resistance they
have at full brightness.   If this is so, why is it that two identical lamps
in series glow with approximately equal brightness?   Why can't we make
thermo-optical flip-flops that use this principle?

. . . Richard

-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf Of
Bruce MacDonald
Sent: Saturday, June 18, 2005 3:19 PM
To: David Harbour; ATM List
Subject: Re: [ATM] ATM: What do they offer:

Dave,
In the particular application you mention, probably none.
However, here are a few:
1.  Fun to experiment with, since they are new, different etc.
2.  Ridiculously low power consumption for the amount of light given.
3.  Low heat
4.  Long life
5.  Extremly small, light package

I think #1 is the kicker though.  Playing with them a lot will enable
you to FIND the "killer advantage".  If you never find it, at least
you learned a lot trying.

--BM

On 6/18/05, David Harbour <scarab2@cox.net> wrote:
> To all:
> 
> Will someone offer me an explanation for what the "advantages" of LEDs
are,
> compared to VERY BRIGHT incandescent filimant lamps? I just have never
been
> able to figure this out. I'm sure it's not a fad;' it's just probably
> because I am stupid about these things. I used to use an incandesccent
lamp
> that was so bright, that when I went to use it on an already coated
mirror,
> I could not read the shadows it was so bright. Will someone explain the
> advantage of these little lights for me? (LEDs)-
> 
> Thanks, Dave
> 
> 
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> 


-- 
"A corporation has no conscience.  Only individual people are capable
of morality"
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