Making a shallow parabolic reflector using hand tools?
On Thu, 22 Aug 2013 07:28:49 -0500, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:
Ed Huntress fired this volley in
:
Generating enough heat (in addition to a high enough
temperature) to start a flame is something else. That's the
distinction that I was trying to explain, based on my own experience.
Once you have that reliable ember glowing, you have the makings of a
fire. I can light a flame from a burning cigarette on any day of the
week (avoiding rain, if possible).
Well, I can too, and I taught flint and steel firemaking when I was a
Senior Patrol Leader in the Boy Scouts.
But it takes some technique and a little experience.
How many grass fires are started along roadways every year from folks'
carelessly flinging weeds out their car windows?
A bigger question is, how many are NOT? The chances of starting a fire
with a cigarette that way, to make a wild guess, are probably 1:100,
unless you're in an absolute tinderbox.
--
Ed Huntress
Lloyd
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