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On Nov 21, 9:28 pm, Totorkon wrote:
It was claimed that in a targeted survey the 'phoenix' set of radio dishes, including arecibo, would be able to pick up the carrier signal of a gigawatt beacon at a distance of 200 lys. By extrapolation, to pick up a megawatt signal, a common power level for dtv transmission, at a distance of a hundred lys, would require an area of nearly ten square miles... equal to the expanse of a 5GW SPS. The 'defered' terrestrial planet finder telescope would be four times the size of hubble and stars as far as 29 lys would be surveyed. To get a reliable spectrum of even the ozone of an earth twin at 100 lys would require an awe inspiring 30m mirror. These instruments would be required to detect a civilization or the precursor oxygen atmosphere that might precede it by half a billion years, for just the closest 10000 stars, a ten millionth of the galaxy's population. We can't know if the starry night is silent untill we have bigger ears and eyes. We should be transmitting our SOS via laser packets, using our Selene/ moon L1 as our laser packet transmitting platform. ~ BG |
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On Nov 24, 5:56*pm, BradGuth wrote:
On Nov 21, 9:28 pm, Totorkon wrote: It was claimed that in a targeted survey the 'phoenix' set of radio dishes, including arecibo, would be able to pick up the carrier signal of a gigawatt beacon at a distance of 200 lys. By extrapolation, to pick up a megawatt signal, a common power level for dtv transmission, at a distance of a hundred lys, would require an area of nearly ten square miles... equal to the expanse of a 5GW SPS. The 'defered' terrestrial planet finder telescope would be four times the size of hubble and stars as far as 29 lys would be surveyed. *To get a reliable spectrum of even the ozone of an earth twin at 100 lys would require an awe inspiring 30m mirror. These instruments would be required to detect a civilization or the precursor oxygen atmosphere that might precede it by half a billion years, for just the closest 10000 stars, a ten millionth of the galaxy's population. We can't know if the starry night is silent untill we have bigger ears and eyes. We should be transmitting our SOS via laser packets, using our Selene/ moon L1 as our laser packet transmitting platform. *~ BG- Hide quoted text - - Show quoted text - Wouldn't that be 'SOP' (.../---/.--.) as in 'Save Our Planet'? |
#3
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On Nov 24, 9:32 pm, Totorkon wrote:
On Nov 24, 5:56 pm, BradGuth wrote: On Nov 21, 9:28 pm, Totorkon wrote: It was claimed that in a targeted survey the 'phoenix' set of radio dishes, including arecibo, would be able to pick up the carrier signal of a gigawatt beacon at a distance of 200 lys. By extrapolation, to pick up a megawatt signal, a common power level for dtv transmission, at a distance of a hundred lys, would require an area of nearly ten square miles... equal to the expanse of a 5GW SPS. The 'defered' terrestrial planet finder telescope would be four times the size of hubble and stars as far as 29 lys would be surveyed. To get a reliable spectrum of even the ozone of an earth twin at 100 lys would require an awe inspiring 30m mirror. These instruments would be required to detect a civilization or the precursor oxygen atmosphere that might precede it by half a billion years, for just the closest 10000 stars, a ten millionth of the galaxy's population. We can't know if the starry night is silent until we have bigger ears and eyes. We should be transmitting our SOS via laser packets, using our Selene/ moon L1 as our laser packet transmitting platform. ~ BG- Hide quoted text - - Show quoted text - Wouldn't that be 'SOP' (.../---/.--.) as in 'Save Our Planet'? I like it(SOP), and perhaps ETs might even get the drift of that message and then wonder, why bother? Even if we attract the attention of really bad ETs, how could that be any worse off than what pathetic terrestrial options we have to pick from? ~ BG |
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On Nov 25, 9:15*am, BradGuth wrote:
On Nov 24, 9:32 pm, Totorkon wrote: On Nov 24, 5:56 pm, BradGuth wrote: On Nov 21, 9:28 pm, Totorkon wrote: It was claimed that in a targeted survey the 'phoenix' set of radio dishes, including arecibo, would be able to pick up the carrier signal of a gigawatt beacon at a distance of 200 lys. By extrapolation, to pick up a megawatt signal, a common power level for dtv transmission, at a distance of a hundred lys, would require an area of nearly ten square miles... equal to the expanse of a 5GW SPS. The 'defered' terrestrial planet finder telescope would be four times the size of hubble and stars as far as 29 lys would be surveyed. *To get a reliable spectrum of even the ozone of an earth twin at 100 lys would require an awe inspiring 30m mirror. These instruments would be required to detect a civilization or the precursor oxygen atmosphere that might precede it by half a billion years, for just the closest 10000 stars, a ten millionth of the galaxy's population. We can't know if the starry night is silent until we have bigger ears and eyes. We should be transmitting our SOS via laser packets, using our Selene/ moon L1 as our laser packet transmitting platform. *~ BG- Hide quoted text - - Show quoted text - Wouldn't that be 'SOP' (.../---/.--.) as in 'Save Our Planet'? I like it(SOP), and perhaps ETs might even get the drift of that message and then wonder, why bother? Even if we attract the attention of really bad ETs, how could that be any worse off than what pathetic terrestrial options we have to pick from? *~ BG- Hide quoted text - - Show quoted text - The answer here seems to be ** just DO it ** DO find earth-like planets that are the most habitable; DO build FTL vehicles to move into the new land of milk and honey BEFORE the inevitable happens on THIS planet (and it most certainly WILL); DO provide the best exit strategy before disaster strikes and the most violent military and paramilitary forces are involved in the mass extermination of the faithful few who still believe in a superior being that created us (a GOD perchance?); DO separate ourselves from the incessant madness that permeates our culture in the banishing of our borders, language, and culture for the express purpose of selling our country down the tubes; - We must learn to practice these kinds of things a whole lot better before the inevitable happens. A |
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On Nov 26, 10:55 am, American wrote:
On Nov 25, 9:15 am, BradGuth wrote: On Nov 24, 9:32 pm, Totorkon wrote: On Nov 24, 5:56 pm, BradGuth wrote: On Nov 21, 9:28 pm, Totorkon wrote: It was claimed that in a targeted survey the 'phoenix' set of radio dishes, including arecibo, would be able to pick up the carrier signal of a gigawatt beacon at a distance of 200 lys. By extrapolation, to pick up a megawatt signal, a common power level for dtv transmission, at a distance of a hundred lys, would require an area of nearly ten square miles... equal to the expanse of a 5GW SPS. The 'defered' terrestrial planet finder telescope would be four times the size of hubble and stars as far as 29 lys would be surveyed. To get a reliable spectrum of even the ozone of an earth twin at 100 lys would require an awe inspiring 30m mirror. These instruments would be required to detect a civilization or the precursor oxygen atmosphere that might precede it by half a billion years, for just the closest 10000 stars, a ten millionth of the galaxy's population. We can't know if the starry night is silent until we have bigger ears and eyes. We should be transmitting our SOS via laser packets, using our Selene/ moon L1 as our laser packet transmitting platform. ~ BG- Hide quoted text - - Show quoted text - Wouldn't that be 'SOP' (.../---/.--.) as in 'Save Our Planet'? I like it(SOP), and perhaps ETs might even get the drift of that message and then wonder, why bother? Even if we attract the attention of really bad ETs, how could that be any worse off than what pathetic terrestrial options we have to pick from? ~ BG- Hide quoted text - - Show quoted text - The answer here seems to be ** just DO it ** DO find earth-like planets that are the most habitable; Already found Venus, though a touch on the geothermally toasty side, it's entirely within our technological expertise as is, and it even looks as though we wouldn't be the first. DO build FTL vehicles to move into the new land of milk and honey BEFORE the inevitable happens on THIS planet (and it most certainly WILL); DO provide the best exit strategy before disaster strikes and the most violent military and paramilitary forces are involved in the mass extermination of the faithful few who still believe in a superior being that created us (a GOD perchance?); DO separate ourselves from the incessant madness that permeates our culture in the banishing of our borders, language, and culture for the express purpose of selling our country down the tubes; - We must learn to practice these kinds of things a whole lot better before the inevitable happens. A The inevitable of terrestrial carbon energy running low and otherwise becoming spendy, plus having our SEC regulated investment markets and countless jobs w/benefits as having kinda gone down the nearest toilet. For many it's simply too little, too late, and the consequences of countless thousands having since committed suicide or having gone off the edge of Earth (past the point of no return so to speak), as is. When you have nothing more to lose, you tend to do strange and sometimes fearless things, like flying large aircraft into tall buildings or other highly populated locations. ~ Brad Guth Brad_Guth Brad.Guth BradGuth BG / “Guth Usenet” |
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