home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   sci.space.science      Space and planetary science and related      1,217 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 723 of 1,217   
   Rodney Kelp to All   
   Re: Question about Light?   
   28 Sep 04 18:29:45   
   
   From: Rodneykelp605@hotmail.com   
      
   Maybe we should use a charged particle beam laser and start blasting some of   
   these new planets and see if we wake anyone.   
      
      
   "Alexander Schreiber"  wrote in message   
   news:slrnclebp6.u94.als@mordor.angband.thangorodrim.de...   
   > Micky  wrote:   
   > > I was reading somewhere that they made the first light antenna. I   
   suppose   
   > > that would make it 100's of times quicker than radio signals.?   
   > > I know we have 100's of antenna's looking for readio signals from other   
   > > planets but do we have any looking for this type of signal already.   
   > > What if Aliens only ever used this type of signal or a simular type for   
   > > communication, has it   
   > > ever been tested for.?   
   > > If I were an intelligent being surely it would make sense using a   
   technology   
   > > that is the speed of light rather than radio.   
   >   
   > Radio waves _are_ travelling at the speed of light.   
   >   
   > A much more likely reason for using light in deep space communications   
   > would be using lasers for the extremly tight beam that lasers allow,   
   > which would enhance transmission privacy (anybody wanting to listen in   
   > must be close enough to the laser beam to intercept parts of it (not   
   > everything, since that would be noticed) and one might be able to cross   
   > larger distances with less power (depends of how power efficient   
   > communication lasers might be compared to radio), although you need to   
   > able to do _very_ precise targetting. Oh, and things like dust or rocks   
   > between you and your communication partner will be _really_ annoying.   
   >   
   > Regards,   
   >       Alex.   
   > --   
   > "Opportunity is missed by most people because it is dressed in overalls   
   and   
   >  looks like work."                                      -- Thomas A.   
   Edison   
      
      
   ---   
   Outgoing mail is certified Virus Free.   
   Checked by AVG anti-virus system (http://www.grisoft.com).   
   Version: 6.0.769 / Virus Database: 516 - Release Date: 9/24/2004   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca