Why do they even bother with this? The only thing this might do is show them where to start the next war.
Quote from: space otter on May 07, 2018, 11:45:23 PMThe expansion takes advantage of a hardware upgrade at the Parkes Radio Telescope in Australia that lets astronomers scan larger areas of the sky quickly and in more detail.
Radio? Bwahahahahaha oh the silly FOOLS :P
QuoteBreakthrough Listen hasn't picked up on any alien signals just yet, but perhaps that will change now that its "ear" just became much bigger and more sensitive.
No surprise there LOL
Okay let's talk RADIO
Number One:Hu-mons developed Radio about a hundred years ago A guy by the name of Nikola Tesla invented it and used it to broadcast his 'free energy'... Then a guy named Marconi stole his work and patented it. Today tesla has been given due credit, but way to late for him to cash in on it...
Okay so RADIO It has only been about the last 60 years oe so that radio waves have been powerful enough to carry modulation that can be recognized beyond the solar system as anything but back ground noise. And to get really far out you need a powerful directed beam, because the modulation (data carried on that radio wave that gives us sound and speech) deteriorates at a know rate.
RADIO waves travel at the speed of light. That means that any Alien at the 60 light year distance form Earth is JUST NOW listening to WWII broadcasts and any planets beyond that distance are getting mostly static...
The number of Stars within 50 light years of Earth is not very many... and those have few planets around them (We have Kepler telescope now :P )
So basically anyone beyond 100 light years ( a short hop as far as space goes) HASN'T EVEN HEARD US YET
This is a map of all the stars within 50 Light Years of Earth...
(http://www.atlasoftheuniverse.com/50lys.gif)
A few years ago we sent a powerful directed radio beam with messages to the Gliese 581 System. That system is 20.5 light years away with 4 earth size planets withing the habitable zone
Here is the Gliese 581 System
(https://www.researchgate.net/profile/Ashok_Singal/publication/262108355/figure/fig2/AS:296909643239427@1447800183687/Planetary-habitable-zones-of-the-Solar-system-and-the-Gliese-581-system-compared.png)
Now Ii already posted this before but I can repeat...
So unless they are already in the vicinity, no one knows we are here :P
Hello from Earth.... A few years ago they sent a powerful signal to Gliese System using the Puerto Rico dish... the website is already down but still on the Wayback Machine That signal will take another 14 YEARS 215 DAYS to get there and that system is only 20.5 LY away ( I think the counter is still active on Wayback machine)
https://web.archive.org/web/20090815094007/http://www.hellofromearth.net/gliese581d/links/index.htm
The TOP message?
Hello Gliese 581d inhabitant. Can you help us humans travel through space and become smart like you. Please do not eat us we are a friendly race.
Angus Pigott
Canberra, Australiahttps://web.archive.org/web/20120508162320/http://www.hellofromearth.net/gliese581d/topmessages/index.htm
Number TwoAny advance race that is travelling interplanetary space would require Faster than Light drive, no natter what type, or they would need generations to just travel nearby stars.
So if you have an FTL ship, you CANNOT use radio as communication with home because it is to slow. If your ship is a mere 1 light year from home, that message would take a year to get back and another year to get an answer.
Now if SETI and Zuckerberg were scanning LEO for ship to ship messages then MAYBE :P
But Star Trek showed us sub space communication... basically signals that travel FTL or via worm holes. You would need that to communicate at those warp speeds
Now forget the Alien Spaceships for now... lets say we are looking for a technology that is still using radio... That would mean they are on about the same level as we are...
Okay so We scan the skies and get a BLIP... we call it the WOW signal... might be an Alien civilization...
But that signal was caught on an automatic feed... and not seen until they looked at the print outs
THIS is what it looked like:
(https://upload.wikimedia.org/wikipedia/commons/d/d3/Wow_signal.jpg)
QuoteWow! signal
From Wikipedia, the free encyclopedia
The Wow! signal represented as "6EQUJ5". The original printout with Ehman's handwritten exclamation is preserved by Ohio History Connection.
The Wow! signal was a strong narrowband radio signal received on August 15, 1977, by Ohio State University's Big Ear radio telescope in the United States, then used to support the search for extraterrestrial intelligence. The signal appeared to come from the constellation Sagittarius and bore the expected hallmarks of extraterrestrial origin.
Astronomer Jerry R. Ehman discovered the anomaly a few days later while reviewing the recorded data. He was so impressed by the result that he circled the reading on the computer printout and wrote the comment Wow! on its side, leading to the event's widely used name.
The entire signal sequence lasted for the full 72-second window during which Big Ear was able to observe it, but has not been detected since, despite several subsequent attempts by Ehman and others. Many hypotheses have been advanced on the origin of the emission, including natural and man-made sources, but none of them adequately explains the result. The Wow! signal remains the strongest candidate for an alien radio transmission ever detected.
https://en.wikipedia.org/wiki/Wow!_signal
Okay so we got a blip... now we have to find it... so we point the radio telescope to the last know spot we caught it... but here is the problem.
The Earth is not stationary and neither is the source of the signal. In fact but we and the source are moving at several MILLION mph... I did a paper on this on Livingmoon... it was actually used by a couple universities :D
The Secrets of the Universe
What is the Speed of the Earth?http://www.thelivingmoon.com/41pegasus/02files/Speed_of_Earth.html
Why is this of importance?
Why is this of importance? For any discussion on the posibility or the probabiliy of space flight dealing with interstellar flight, it is necessary to have this data.
Imagine for a moment that you have a faster than light or warp capable star ship...
Considering the speed at which the Earth moves, even a short mission away from Earth would result in the planet being millions of miles away from the point of origin at the time you left. Nasa calculations to reach a simple point like the Moon require enormous calculations and pin point accuracy. Any small error left uncompensated would result in Astronauts missing the Earth on return.
Motion, Speed and Direction of Travel of Earth Through Space
Or
"How the Hell Do I Calculate the Way Home"
A study by R. Schmidt July 21, 2006
Disclaimer:The following figures are approximate values for demonstartion only! Please DO NOT use them to calculate actual flight paths. We are not responsible for people getting "Lost in Space".
Consider yourself sitting at your computer on a chair...How fast are you moving?
1. The Earth "wobbles" on its polar axis. This motion is not relevant (IMO) to the calculations needed to return to earth from interstellar space as it is an "in situ" motion, but it exists.
2. The Earth revolves {spins} on its axis. For these calculations we will use the equator with a circumference of approx. 25,000 miles. One rotation of Earth is approx. 24 hours. Again this is "in situ" motion so not relevant to space travel, but adds to our "stationary chair" model
25000/24 =1041.7 MPH
3. The Earth is orbiting the Sun once a year. The circumference of the Earth's orbit is approx. 607.6 million miles {or 940 million kilometers}. One year is approx. 365 days
365 days X 24 = 8760 hours
607,600,000/8760 = 69,360.73 MPH
So far we have basically 3 Directions of Motion {Wobble, Spin and Orbit} and a combined speed of 1041.70 + 69,360.73 = 70,402.43 MPH for a person sitting in a chair at the Equator.
{Note: We will do the actual vector calculations at the end}
The following source gives more detail and a more precise calculation based on your latitude and more exact figures. Anyone dizzy yet? A little motion sickness perhaps?
When you take into account the three-dimensional picture of the Sun's movement through our Milky Way Galaxy, things get very complicated.
4. The sun {and hence the solar system} is moving towards the constellation Hercules, namely to the star Lambda Herculis at 12 miles per second {or 20 kilometers per second} which is 43,200 MPH
5. The Solar system is also moving upwards, at 90 degrees to the plane of the Milky Way, at 4.34 miles per second or 15,624 MPH. But we are actually leaving the Galaxy, out about 50 light years now and will be moving out to 250 light years before it reverses. Details of the mechanics of this are explained in the link below. We also crossed the Galactic plane 2 million years ago.
6. The Solar system is orbiting around the Galaxy at an "estimated" speed of 124 miles per second {or 200 kilometers per second} which is 446,400 MPH. The way that figure has been calculated can be found at the link below.
This is where finding our way home becomes difficult, as we do NOT have an actual true figure for this calculation. The further out we go, taking into account the various motions and speed, the more difficult it becomes to get precise calculations ergo the more room for error. Until we can actually go and measure the distances, a "best guess" is all we have. Over the past few decades these values have been revised several times, and are constantly being added to today.
From an Astronomer's point of view this is not a problem, as they are merely observing from Earth and can fix their calculations when they get new data... no harm done... just reprint the maps.
BUT from a spaceship pilot point of view...touring just within our own galaxy... the problems are enormous.
From a navigator's point of view, we can leave out the "wobble" and the Earth's rotation as those movements are "in place". For later calculations we could also leave out the Earth orbiting the Sun, because if we can make it back to the Sun, I am sure we can locate Earth.
So our "armchair Astronaut" is now moving through 6 different directions and a combined speed of approximately 574,585 MPH
69,361 MPH Spin and Orbit
43,200 MPH Towards Lambda Herculis
15,624 MPH Perpendicular to Galactic Plane
446,400 MPH Orbiting the Galactic Center {or Galactic Spin Rate}
-------------------
574,585 MPH Speed of Earth within Our Galaxy
So for every hour you are away from the solar system, your planet is moving half a million miles, and in several directions...
Now if you want to leave the galaxy add another 1,339,200 MPH to the calculations. This is the speed the galaxy is moving through the universe. But THEN you really get into difficulties pin pointing you reference point. Details can be found here...
So while we are zooming around the Galaxy at these speeds, so is the source of that Wow Signal... and we have NO WAY of knowing in which direction(s)
Finding that blip again is worse than looking for a needle in a haystack... And depending HOW FAR that signal traveled, it may have left that source a million years ago
So you all know that the Planets revolve around the Sun in neat little circular orbits, yes? Well from a certain point of view that is correct... however if you were to view the solar system from outside the galaxy it would look more like the following video. Now this video doesn't include ALL the above mentioned speeds and motions (He did use my paper as reference) but it is close enough to get the idea
Imagine being on a train moving 100 mph in one direction You are tossing a ball back and forth in the train... seems normal because you , the ball and the air in the train are going 100 mph too. But to someone outside watching that ball it looks different as he sees the relative motions, so to that observer the ball never travels backwards
https://www.youtube.com/watch?v=0jHsq36_NTU
Updated versionhttps://www.youtube.com/watch?v=mvgaxQGPg7I