Runts of the universe

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Worth the read. Really makes you think about how little we really are......


http://wwwSPAMfeed.com/daves4/the-universe-is-scary?s=mobile
 
Couple of things: In 23, it would be more accurate to use the word "billions" instead of millions. 26 is mis-leading, black-holes come in all manner of sizes.
 
It is beyond understanding in many respects.
 
makes you feel very vulnerable. i know predictions say it'll last for many human lifetimes but if the sun randomly started "misbehaving" we're all screwed.

also blows your mind how many coincidences lead to human existence. the first being the exact distance from the sun to sustain life.
 
neil_g said:
makes you feel very vulnerable. i know predictions say it'll last for many human lifetimes but if the sun randomly started "misbehaving" we're all screwed.

also blows your mind how many coincidences lead to human existence. the first being the exact distance from the sun to sustain life.
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That last one is no co-incidence. The latest estimate I heard was that there are 45 billions planets in the habitable zone in our galaxy alone.
 
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I definitely believe there's life on other planets and maybe in space. The precise form will be uncertain. I suspect it's more likely to be akin to archaebacteria.
 
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neil_g said:
makes you feel very vulnerable. i know predictions say it'll last for many human lifetimes but if the sun randomly started "misbehaving" we're all screwed.

also blows your mind how many coincidences lead to human existence. the first being the exact distance from the sun to sustain life.
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Its more the exact distance to sustain life as we know it. Even then we couldn't live in the largest majority of our own planet unaided, whether be in a water world or the hottest and coldest deserts at the poles and equator.

I find it almost impossible to think that we could inhabit another world for that reason however we do have various terrains, temperatures, pressures here on Earth that could be used to prepare us at least in part to make an attempt at it.
 
omens said:
I definitely believe there's life on other planets and maybe in space. The precise form will be uncertain. I suspect it's more likely to be akin to archaebacteria.
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It's life Jim but not as we know it.
 
But surely God did it :runaway:
 
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Even within our own solar system, scale is hard to picture. IIRC Bill Bryson defines it apty:

it isn’t possible, in any practical terms, to draw the solar system to scale. Even if you added lots of fold-out pages to your textbooks or used a really long sheet of poster paper, you wouldn’t come close. On a diagram of the solar system to scale, with the Earth reduced to about the diameter of a pea, Jupiter would be over 300 metres away and Pluto would be two and a half kilometres distant (and about the size of a bacterium, so you wouldn’t be able to see it anyway). On the same scale, Proxima Centauri, our nearest star, would be 16,000 kilometres away. Even if you shrank down everything so that Jupiter was as small as the full stop at the end of this sentence, and Pluto was no bigger than a molecule, Pluto would still be over 10 metres away.
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Hence the ability to travel across galaxies is doing to problematic. The Voyager I is the fastest thing we have and even with that it would take 10,000 years to reach the edges of the solar system (Oort cloud). It would take Voyager I 80,000 years to reach our nearest star Proxima Centauri.

Space is vast.
 
neil_g said:
i know ive used this phrase a lot in this thread but, when i sit and think about this and then start wondering how all of the stars and just space in general came to be it just totally blows my mind.
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Me too and I sometimes wonder if the scientists/ physicists or whatever who attempt to explain it are believable. I just don't know.
 
ST4 said:
I often wonder if there is life, as we know it out there. You know, beings capable of thoughts/emotion etc that have built civilisations etc. A curious thought.
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I wouldnt be surprised if millions of "civilisations" of sentient beings have been born, grown and become extinct at many times throughout the universes history and breadth. And many more still to come and go.
 
ST4 said:
I often wonder if there is life, as we know it out there. You know, beings capable of thoughts/emotion etc that have built civilisations etc. A curious thought.
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Ok Steve...your work on this planet is complete now ,you can go home ....:);)
 
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ChasG said:
But surely God did it :runaway:
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But which (or witch...) god?

"Just remember that you're standing on a planet that's evolving
And revolving at nine hundred miles an hour
That's orbiting at nineteen miles a second, so it's reckoned
A sun that is the source of all our power..."
 
ST4 said:
Well I don't want space invaders here, do you?
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Exactly...I don't want beamed aboard for mind control experiments and an orifice probing. Brings a whole new meaning to space invaders.
 
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Top Tip : Recreate the thrill of being abducted by aliens by locating your home on google maps then scrolling out really quickly while your other finger is up your a**e
 
Many things associated with space really do deserve the term, 'mind boggling' -

In August 1998 a burst of x and gamma rays reached the Earth. It was detected by a number of satellites whose counters went off the scale and one the had to shut down to protect itself.
It also ionised the the upper atmosphere disrupting long wave communication on the night side of the Earth . This ionisation is something that happens everyday due to similar emissions from the Sun and is why long wave radio communication is better at night than during the day.

Therefore the source of the x and gamma rays did what the Sun does everyday but it was not, like the Sun, about 8 light minutes away from Earth, it was 20,000 light years away.

Dave
 
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DorsetDude said:
Top Tip : Recreate the thrill of being abducted by aliens by locating your home on google maps then scrolling out really quickly while your other finger is up your a**e
Click to expand...

You owe me a keyboard.
 
Another one?

Top tip: Alien abductees, dont go for a dump prior to bed. Then if you are abducted during the night you will wake up with the satisfaction of knowing that the aliens probing equipment is in a right mess.
 
DorsetDude said:
Top Tip : Recreate the thrill of being abducted by aliens by locating your home on google maps then scrolling out really quickly while your other finger is up your a**e
Click to expand...

you misheard..its "..finger up your nose and destination Uranus"

Don't be afraid to share your experience however :LOL:
 
I always liked these scale clips



and on a greater scale this..............


Lets go on a journey, beginning at midnight on January 1st, starting from our own sun.

We'll be travelling at the speed of light or 186,000 miles a second.

We pass by Earth in just 8 minutes

After just 5 hours & 3.5 Billion Miles we pass Pluto

By the time we exit our Solar system it's still Jan 1st.

Lets keep going at 186,000 miles a second for longer than 1 day and see what comes next.

Our Solar Sytem fades away and becomes a spec in space.

It would take 5 whole years to reach our nearest Star 25 trillion miles away.

After 100 years travelling we start to see the Milky Way which our solar system is part of.

After 1000 years travelling the spiral of the Milky way starts to become defined

After 100,000 years we're far enough out to see the entire spiral of the Milky Way. Our own Solar system is one of trillions in that spiral.

After 5 Million years travelling the whole Milky Way Galaxy shrinks and becomes just one dot amongst a group of about 30 Galaxies. These are merely what we call the 'local group' cluster.

After 50 Million years travelling that local group become just one dot in the sky and we pass by the Virgo cluster containing over 2,000 galaxies.

Keep going cluster after cluster

1 Billion years travelling

5 Billion years travelling

10 Billion years - and you see billions of galaxies and clusters arranged together.
 
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ST4 said:
Well I don't want space invaders here, do you?
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We'd certainly want to get our hands on their technology and knowledge. Two [co-operative] minds are better than one, otherwise I'll go with dead bug is good bug.
 
ST4 said:
Your assuming they are nice friendly beings. I would suspect they'd have technology far superior to our own and would simply eradicate us.
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What.

Thats ridiculous it's not like the superpowers of this world go around trying to destroy the less technological colonies of this world............Oh hang on


Damn
 
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