aliens?!

[nilbog]

well i have lost faith that governments will be able to do anything. support privatized space and lets go find the aliens.

http://www.googlelunarxprize.org/lunar/about-the-prize

[Excision Rottun]

Originally Posted by Yellow [You must be logged in to view images. Log in or Register.]

me and a friend did some theory crafting and i forgot the equations we built but we were assuming many things but hell in theory crafting its all assumption. well we figured that at the speed of radio waves there is a chance that they have yet to even go very far in space relatively... like possibly not even out of our solar system and for sure not into another.

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[YendorLootmonkey]

I hope alien civilizations don't watch our shows like Star Trek: TNG and they're like "Shit... these guys are a serious threat with their starships and photon torpedoes, we better go blow up their planet before they find us."

[mgellan]

Originally Posted by Yellow [You must be logged in to view images. Log in or Register.]

me and a friend did some theory crafting and i forgot the equations we built but we were assuming many things but hell in theory crafting its all assumption. well we figured that at the speed of radio waves there is a chance that they have yet to even go very far in space relatively... like possibly not even out of our solar system and for sure not into another.

Given radio waves are essentially photons (to give it the particle name in the wave particle duality) travelling at the speed of light with wavelengths about 30cm and up, they would most certainly have left in the solar system in the approx. 90 years we have been broadcasting them. The closest 50 stars indeed lie within 16 ly of the Sun so they'll be currently getting blasted by 1994 hits like "The Sign" by Ace of Base and "The Power of Love" by Celine Dion (shudder!) at 100000 watts on the AM band. Since the strength of the signal declines as 1/r^2 then 100000 watts radiated power at say 1km from the transmitter would be 1/(16ly*9,460,800,000,000km/ly)^2 = 6.6x10^-15W when they are received, assuming no intervening dust - given there are amateur SETI receivers that can receive in the order of 10^-23 watts/sq meter I'm sure any aliens with a basic radio astronomy set would be blown out of their seat.

While interstellar dust will block radio (so anyone in line of sight of earth but behind a dust cloud won't see it) it won't 'slow it down' by any measurable amount. In fact the radio would have travelled the roughly 100AU = 1.58128588 × 10-3 ly to the heliopause in about 83 minutes...

That being the case, the multi-steller combined battle fleet should be arriving at any moment to destroy any lingering trace of Celine Dion from the Universe, which in my opinion is fully justified.

Regards,
Mg

PS Can you tell work is a little slow this afternoon? [You must be logged in to view images. Log in or Register.]

[Hasbinbad]

90 light years is miniscule compared to the galaxy, let alone the universe..

Originally Posted by some webpage

The disk of the Milky Way galaxy is about 100,000 light years in diameter (one light year is about 9.5 x 1015 meters), but only about 1000 light years thick.

There are billions? trillions? of galaxies?? The space between them is immense relative to the space between stars intragalactically?

I don't think you're going to find a scientist worth his salt that would postulate that interstellar extraterrestrial life can be found within the milky way..

Nobody is listening to the original broadcast of war of the worlds guys.

Originally Posted by mgellan [You must be logged in to view images. Log in or Register.]

That being the case, the multi-steller combined battle fleet should be arriving at any moment to destroy any lingering trace of Celine Dion from the Universe, which in my opinion is fully justified..

I lol'd irl.

[dojo420]

somewhat related:
for anyone interested (and nerdy) enough i highly recommend "Understanding the universe" by Alex Filippenko. It's 96 video episodes 30 mins each of classroom style astronomy. it is very well done though and has plenty of examples, graphics etc.
topics discussed can be seen here under "course lecture titles":
http://www.teach12.com/ttcx/coursede....aspx?cid=1810

i just watch it during long camps.

[Omnimorph]

... so... where's the mass effect relays in that picture dammit?

wanting some asari action!! :3

[Yellow]

Originally Posted by YendorLootmonkey [You must be logged in to view images. Log in or Register.]

I hope alien civilizations don't watch our shows like Star Trek: TNG and they're like "Shit... these guys are a serious threat with their starships and photon torpedoes, we better go blow up their planet before they find us."

:]

[Hasbinbad]

Originally Posted by dojo420 [You must be logged in to view images. Log in or Register.]

somewhat related:
for anyone interested (and nerdy) enough i highly recommend "Understanding the universe" by Alex Filippenko. It's 96 video episodes 30 mins each of classroom style astronomy. it is very well done though and has plenty of examples, graphics etc.
topics discussed can be seen here under "course lecture titles":
http://www.teach12.com/ttcx/coursede....aspx?cid=1810

i just watch it during long camps.

Thanks for the tip!
From the looks of the TTC vids, and knowing of many of these professors, this is a great (and very expensive) resource!
<3 tpb is all I have to say.

[guineapig]

By the way, that law mentioned on the first page is a rumor that was debunked a long time ago:

http://www.truthorfiction.com/rumors/a/aliens.htm

http://tafkac.org/faq2k/legal_2006.html

http://www.snopes.com/legal/et.asp