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Location: UFOUpDatesList.Com > 2012 > Dec > Dec 17

Re: Update To Our View Of The Drake Equation

From: Stanton T. Friedman <fsphys.nul>
Date: Mon, 17 Dec 2012 11:09:48 -0400
Archived: Mon, 17 Dec 2012 18:32:38 -0500
Subject: Re: Update To Our View Of The Drake Equation


>From: Edward Gehrman <egehrman.nul>
>To: <post.nul>
>Date: Sun, 16 Dec 2012 08:55:42 -0800
>Subject: Re: Update To Our View Of The Drake Equation

>>From: David Rudiak <drudiak.nul>
>>To: post.nul
>>Date: Sat, 15 Dec 2012 11:59:07 -0800
>>Subject: Re: Update To Our View Of The Drake Equation

>David,

>Thanks for the information. You're correct. I have a very basic
>physics understanding and I didn't know how the math worked out.

>That's why I asked the question. Your explanation helped but I
>have a few more questions.

>How does the laser beam stay focused on the space craft? What
>happens to the space craft if there is a malfunction of the
>laser and the beam is interrupted?

>When you calculate energy use, are you doing it by the second or
>hour or day or just the initial need. You wrote:

>"The energy to accelerate that 10 ton probe to 10% light speed
>would be the equivalent of less than one day's operation of such
>a system."

>Once the craft arrives at the required speed, is the laser still
>needed? In other words, does it require the same amount of
>energy per second, or hour or day to stay at speed, or once it
>gets to speed, does it glide to its destination? And once it
>gets there, how does it stop and then turn around and return?

>I agree that our visitors seem concerned with our nuclear
>weapons. Why should they be if they don't live here?

>Since they don't seem to be looking for a fight, it's much more
>likely that their concern is generated by their knowledge that
>we could destroy the neighborhood we both share.


Ed,

I agree with that last paragraph. Two important points:

1.Every advancing society will want to know how its star
produces all that energy. We figured it out in the 1930s,
exploded our first A bomb in 1945 and our first fusion weapon in
1952. We had a nuclear submarine in 1956. Studies were done of
fusion propulsion in the early 1960s.Our nuclear aircraft
carriers can operate for 18 years without refuelling. Of course
we are a threat to the neighborhood.Military budget this year a
cool trillion dollars

2.There are nearby locations where there are older planets which
have much nearer neighbors than we do. Zeta 1 and Zeta 2
Reticuli are less than 1/8th of a light year apart from each
other and a billion years older than the sun and only 39.3 LY
from us... far more incentive for intersttellar travel.


Stan Friedman



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