https://au.news.yahoo.com/a/26044323/australian-scientists-capture-alien-radio-signals-in-world-first/

bob(from black rock) said:

https://au.news.yahoo.com/a/26044323/australian-scientists-capture-alien-radio-signals-in-world-first/

We discussed this in chat.

The headline is a teeny bit extreme, but the actual article is OK.

is Jodie foster aware of this?

>The headline is a teeny bit extreme, but the actual article is OK.

I’m recovering from the disappointment here it weren;‘t ET sending us footage of Adolf opening the olympic games, along with the plans for a machine that’d transport me through a worm hole to visit a relative in heaven

ABC Justin headlines are better thought through:

Cosmic radio bursts witnessed live by Australian scientists for first time

Australian scientists see the “exciting” bright flashes of radio waves caused by a cosmic radio burst “billions of light years away”.

(I can’t give the URL yet – I keep getting “Bad Request” for many of the links I try tonight, inclunding this one. Dunno why…)

http://phenomena.nationalgeographic.com/2015/01/19/astronomers-catch-mysterious-radio-blast-from-the-distant-universe/

bit more in this one.

http://www.abc.net.au/news/2015-01-20/cosmic-radio-bursts-witnessed-live-by-australian-scientists/6029684

for MV

Given that we have been putting out radio signals of intelligent life for 100 years, how big/powerful would an aliens receiver have to be to pick up our signals?

I know that it depends on the strength of the signal and how far away but for arguements sake, would we be able to recognise the strongest signal we have sent from 30 light years away?

Thanks CE.

it’s been suggested that radio waves we generate would just be lost in the noise of space, after a short distance it would just be reduced to a hiss, likewise for alien radio waves

my idea for advertising our presence would be a hige reflective object with little mass that circles a sun

an alien observer would see a problem with the object , it’s size , reflectivity and mass wouldn’t be reflected by the wobble of the respective star, create a surface that only reflects a narrow bandwidth of light of 7 colours and it would be concluded it was made by an alien intelligence

create a surface that uses the suns light to pulse visible bandwidth morse code and it would seal the deal they were looking at alien messages

would we be able to recognise the strongest signal we have sent from 30 light years away?

arecibo sent out a signal. it was a pretty tight beam. so, maybe.

you need a reflective surface

the reflector in space uses the suns energy to broadcast

you use visible light as its the suns most prolific output AND gives a clue to an observer on how we see

a radio message just gets lost

a reflective message pumps out a message many times stronger

>I know that it depends on the strength of the signal and how far away but for arguements sake, would we be able to recognise the strongest signal we have sent from 30 light years away?

certainly a lot of power being pumped out with all the TV and radio transmitters

even if it looked like noise way off for ET, they might see changes to the noise spectra caused by the rotation of the earth and other things.

#GEORGE THOROGOOD-SWEET LITTLE LADY

gone

emr is emr. if you put out similar power then the distance travelled would be similar. i mean we do have radio astronomy.

ChrispenEvan said:

emr is emr. if you put out similar power then the distance travelled would be similar. i mean we do have radio astronomy.

yeah but an orbiting reflector that is noticeable by its reflective qualities means you don’t need any appreciable power use for output – use the sun , a spinning reflective would create flashes

it would be seen faster and realised that it was artificial

and yet they use other bands of the emr spectrum because it can travel through dust clouds and the like where light can’t.

This is quintensensual Australian, not many other nations would have scientists that could do this.
This is in the fine tradition of the orbital engine and the non linear clothes line.

>the non linear clothes line

…….required work to imagine what that might be…..1/3 way through morn coffee…..take it slow now

Peak Warming Man said:

This is quintensensual Australian,

ooh la la

ChrispenEvan said:

http://phenomena.nationalgeographic.com/2015/01/19/astronomers-catch-mysterious-radio-blast-from-the-distant-universe/

bit more in this one.

> Called fast radio bursts, these extreme pulses of energy last for just a fraction of a second. They’ve confounded astronomers – who have no idea what they are – since West Virginia University’s Duncan Lorimer spotted the first burst in 2007.

Much earlier than that, I’d reckon. The infamous Wow! signal from 1977 was a similar unexplained radio burst, and SETI has picked up dozens of similar ones since – some of them well outside the envelope expected from a natural signal. Yes, astronomers have no idea what they are and yes, the number of hypotheses exceeds the number of observations.

the WOW signal was 72 seconds. that is a lot longer than these FRB at only a few milliseconds.

JudgeMental said:

the WOW signal was 72 seconds. that is a lot longer than these FRB at only a few milliseconds.

OK.

wookiemeister said:

is Jodie foster aware of this?

Jodie foster would be pissed off I Imagine

Australian scientist first to catch mysterious alien radio signals

a bit more on the story