Cecil Moore wrote:
Jim Kelley wrote:
Then your observation was unrelated to the topic of discussion, which
was your claim that 2 Joules per second could be obtained from a 1 watt
laser.

You know that I never claimed that, Jim. As bright a guy
as you are, why do you have to stoop to falsifying what
I have said?

So now you start with the accusations, and here's why (from
yesterday):

"If it were total constructive interference, two 1/2W
beams would yield an intensity of 2 watts."

It was pointed out to you that that notion violates conservation of
energy, but rather than admit that you were incorrect, you attempt to
revise history. Then there was this:

Hint: (2 watts/in^2 + 0 watts/in^2)/2 in^2 = 1 watt

:-) Actually, it's a beam of light that subtends a solid angle of
less than one degree. Let's call it a degree just to be
conservative. That would leave 719 other solid degrees where there is
0 watts, so according to Cecil's theory of spacial power averaging,
the answer could also be 2 watts+0+0+0... / 719 = 2.78 milliwatts.
But apparently those values don't give the answer you were going for.

Others have made points along these lines quite eloquently. Excellent
comments in this thread from Roy, Keith, Owen, Gene, Tom, et al.

73, Jim AC6XG