There is life there?

 

Time ago, on a publication, apeared that 4 years (or 8?) after the explosion of Krakatoa with was the most powerfull of the modern times, an strange explosion apeared on Siberia (or Russia forest). So the author talked about that maybe "someone" at Alpha Centauri solar system got this manifestation tought that was a message and reply it.

 

Well the above is not a must, but the point here is that with the current technology we can travel there?, even if we sent a sonde at 1/4 lightspeed we had to wait 4 years minim (depending on technology and after wait 16 years) to get reports about?

That krakatoa/siberia bit was one of the stupidest things I've ever read.

 

We wont be going to Alpha centauria for a few centuries at least I should think. 1/4 lightspeed is an insanely high number, and remember you have to accelerate to that speed first, most of the journey would not be at that speed.

was that the explosion in Siberia that's supposed to have changed the tilt of the Earth by a measurable degree as well? Or have I got the completely wrong end of the stick? As for travelling to Alpha Centauri, the discovery of a worm hole would facilitate such travel wouldn't it?

 

The Wolverine

Depends on what your definition of "noticable" is. There have been far far FAR bigger impacts than the one in siberia.

 

Saying that a worm hole would facilitate travel to Alpha Centauri is pure science fiction.

How is it anymore science fiction than the concept of a neutrino? It's all postulations.

 

The Wolverine

With the current technology we can take like 100000000 of years to put a sonde there.

Whats a sonde?

It's mexican for grandmother.

 

 

Kidding. It's french for probe... which is almost as funny.

How is it anymore science fiction than the concept of a neutrino? It's all postulations.

Because the neutrino has been observed.

 

http://www.google.co.uk/search?num=100&hl=en&ie=UTF-8&q=neutrino+detectors&btnG=Search&meta=

I think he meant neutralino.

Actually I meant neutrino, I wasn't aware that it had been detected. So how does one go about detecting a massless, chargeless particle then?

 

Anyhow it was meant more to be an example of a postulation yet to be proven, take otherwise the existence of strings if that suits you better. My point was the existence of a lot of cosmological entities are pure postulation in theirr very nature to start off with.

 

The Wolverine

When Tycho said that using a wormhole to get to Alpha Centauri was pure science fiction, I suspect he was referring to the 'massive overkill' aspect.

 

If you want to know about neutrino detectors, simply follow the link I posted. They are interesting devices.

Ok will do thnx, tho it's quite a lot of info to filter thru.

 

The Wolverine

It's mexican for grandmother.

 

 

Kidding. It's french for probe... which is almost as funny.

 

Well, just call it "the UFO for the inhabitants at Alpha Centauri"

So how does one go about detecting a massless' date=' chargeless particle then?

[/quote']

 

They use Cherenkov radiation mainly. In a medium such as water, light is slowed down to speeds <c, so it is possible for very low mass particles to travel faster then light (though not faster than c). When they do, they give of Cherenkov radiation, which is directly analogous to the sonic boom of a jet airplane (only with light rather then sound).

']That krakatoa/siberia bit was one of the stupidest things I've ever read.

 

We wont be going to Alpha centauria for a few centuries at least I should think. 1/4 lightspeed is an insanely high number' date=' and remember you have to accelerate to that speed first, most of the journey would not be at that speed.[/quote']

Discovery magazine had an article about space travel. They said a hydrogen

"maser" engine could accelerate to ½ the speed of light in 7 years.

How long does it take to slow down and stop? One must have a very accurate knowledge of the precise distance one has to travel.

How long does it take to slow down and stop? One must have a very accurate knowledge of the precise distance one has to travel.

That's a good question, the article said it would take 14 years to get to Alpha Centauri.......I don't know if that included slowing down and stopping.

Discovery magazine had an article about space travel. They said a hydrogen

"maser" engine could accelerate to ½ the speed of light in 7 years.

 

 

How does this work, I've never heard of this before.