A Space & astronomy forum. SpaceBanter.com

Go Back   Home » SpaceBanter.com forum » Space Science » Policy
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

Silent night



 
 
Thread Tools Display Modes
  #1  
Old November 25th 08, 01:56 AM posted to sci.space.policy
BradGuth
external usenet poster
 
Posts: 21,544
Default Silent night

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
  #2  
Old November 25th 08, 05:32 AM posted to sci.space.policy
Totorkon
external usenet poster
 
Posts: 183
Default Silent night

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  
Old November 25th 08, 02:15 PM posted to sci.space.policy
BradGuth
external usenet poster
 
Posts: 21,544
Default Silent night

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
  #4  
Old November 26th 08, 06:55 PM posted to sci.space.policy
American
external usenet poster
 
Posts: 1,224
Default Silent night

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
  #5  
Old November 26th 08, 08:23 PM posted to sci.space.policy
BradGuth
external usenet poster
 
Posts: 21,544
Default Silent night

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”
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Why is the Universe silent? [email protected] UK Astronomy 16 December 1st 06 09:49 PM
GR autopsy & silent p coup. brian a m stuckless Policy 0 April 28th 06 12:27 PM
GR autopsy & silent p coup. brian a m stuckless Astronomy Misc 0 April 28th 06 12:27 PM
OT - A Ukrainian "Silent Protest" Pat Flannery History 1 December 1st 04 03:05 AM
MER-A goes silent... OM History 40 February 3rd 04 08:11 PM


All times are GMT +1. The time now is 05:56 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 SpaceBanter.com.
The comments are property of their posters.