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 Listen to 'Strange Days... Indeed' - The PodCast At: http://www.virtuallystrange.net/ufo/sdi/program/ These contents above are copyright of the author and UFO UpDates - Toronto. They may not be reproduced without the express permission of both parties and are intended for educational use only.
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