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Science Discussion-Space And Universe. |
Cycovision
Joined: Nov 30, 2003
Posts: > 500
From: England
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^^^
Yes, I feel much better after reading that 
And, just to improve matters, let's not forget the possibility of a catastrophic solar flare. A big dose of solar radiation wouldn't do us a lot of good, if the earth ever happened to be in the wrong place at the wrong time...
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tapojyoti
Joined: Oct 12, 2007
Posts: 15
From: The world above this one
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Thanks,bobafett,for the info...so..Global warming can disturbingly wipe out ALL the waterbodies if is getting over 20(currently,it's close to 18 or something..in 2004,it was something like 16) Therefore(happening WITHIN the Solar System)The Sun..hydrogen+combustion of it=helium which increases the space causing the sun to get abit larger..And a satellite of the sun...The Earth..is currently hosting the most intelligent life in the Solar System.But the intelligent species is so destructive,it is harming mother Earth.The intelligent species has to use their intelligence in the green direction,the direction so close to us which is very easy to cross..but we can't see it.Instead we're going through the red way.Sometimes,to go forward,we need to go backwords too...which we are not doing...Later..we need to go OUT of the ss after we've started to solve the riddle here.I mean..what type of machinery can be used instead of another type..some using lower harm rate than others... |
deluded
Joined: Sep 14, 2005
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On 2008-01-03 10:16:10, goldenface wrote:
@deluded
Our Sun has enough fuel to last another few billion years so I don't think we need to worry about that yet - unless of course we discover the secret of immortality. (Imagine reaching your billionth birthday  )
I am of the opinion that life on earth will continue long after humans have come and gone.
@goldenface, I think you may have misinterpreted my post. Here's what I said:
On 2008-01-03 09:58:00, deluded wrote:
On a more serious note, I think I have to agree that Man will ultimately cause his own extinction, way before any natural calamities can.
What you said actually means more or less the same as what I mentioned earlier.
Of all the things I've lost, I miss my mind the most. |
tapojyoti
Joined: Oct 12, 2007
Posts: 15
From: The world above this one
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A Great link- http://en.wikipedia.org/wiki/Galaxy |
max_wedge
Joined: Aug 29, 2004
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From: Australia
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On 2008-01-05 16:35:02, fatreg wrote:
but the sun going I feel doesn't spell the end of all life, there are fish deep in the ocean that have never seen the sun and never will, the tides offer no benefit to them.
when the sun expands into the red giant phase, it will encompass the earth and boil away all water on the planet and and all gases will evaporate into space. There will be no atmosphere and no ocean left. When the sun shrinks back down to a white dwarf, the earth will be left as a barren cold rock with NO life whatsover, not even microbial life.
The only life that will survive this is any life that has left the planet and settled in other solar systems besides our own. This maybe humans, or some decendents of existing life on earth that has become intelligent enough to invent intersteller travel without destroying itself or the planet in the process.
But any life not capable of interstellar travel, that is left on the planet at the time when our oceans and atmosphere are boiled away by the expanding sun, will be doomed. Even burrowing undergrouind would provide little protection, although it would enable life to survive for a few thousands years longer than on the surface, but eventually the entire planet will be heated through and all life will die.
One possibility is intelligent life may be able to move to pluto or a moon of one of the gas giants and live there underground, but with the energy supply of the sun gone heating will be a major issue and any life would rely on heating machines and fuel in the solar system would steadily be depleted. Eventually life will have no option but to settle on planets around distant suns.
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[ This Message was edited by: max_wedge on 2008-01-07 07:18 ] |
tapojyoti
Joined: Oct 12, 2007
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Defeated though I am..I may have to agree to the term that only ONE Big Bang happened and that dark matter will NOT cause the whole universe to break down...Still...coming into the solar system...the Sun may become a Black Hole after a white dwarf...but if it is that the big bang won't repeat itself,then humans have to build a spacecraft along with some kind of oxygen and some kind of co2 producers and lots of nitrogen.It needs a good system..whatsoever so that the gas won't get out when a human does...man needs to make a transporter!As in most alien stories..etc.Scientists believe it's not impossible...same as me..but the true concept-break down all the atoms and before doing so recording their arrangement.If they DO record it..they can scan them and make multiple stuff..! |
max_wedge
Joined: Aug 29, 2004
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our sun won't go blackhole - it doesn't have enough mass.
as to space travel and oxygen nitrofen needs - basically they build a biosphere within a spaceship - so all waste including carbon dioxide get's recycled back into air and food. The whole system can keep recylcing forever and ever.
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tapojyoti
Joined: Oct 12, 2007
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Quote:
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On 2008-01-07 13:19:31, max_wedge wrote:
our sun won't go blackhole - it doesn't have enough mass.
as to space travel and oxygen nitrofen needs - basically they build a biosphere within a spaceship - so all waste including carbon dioxide get's recycled back into air and food. The whole system can keep recylcing forever and ever.
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I agree that it IS very MUCH MORE than POSSIBLE..but it's that we can try it out!But...disadvantages and back-steps-plants make food using minerals and bacteria...which means we need to take separate samples of reproducing bacteria and fungi...etc..which means we need to get lots of soil for planting the vegetation.And also,we need lots of oxygen to carry the recycling method.Plus we need to get special types of TREES which send out maximum oxygen instead of releasing maximum toxic...which means that there has to be a atleast 50%presence of nitrogen.also,we need to take lots of seeds of all plants so that we don't lose any species after we have set up a well-balanced environment.All these would make the ship weigh tonnes apart from the cover itself.If we could only find a magnetic-field reflecting cover..then it'd get itself free from the earth...I'm releasing my !deas and I,The reader of the Selfish Giant posting...whatever,it's my nick speaking... |
max_wedge
Joined: Aug 29, 2004
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From: Australia
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true it would be a massive undertaking. But remember this will be in billions of years time. I'm assuming that this would only work if humanity (or whatever intelligent species exists on the earth at that time) has a highly advanced technology.
With an advanced technology, this sort of enterprise would be extremely doable.
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tapojyoti
Joined: Oct 12, 2007
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Quote:
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On 2008-01-08 00:04:40, max_wedge wrote:
true it would be a massive undertaking. But remember this will be in billions of years time. I'm assuming that this would only work if humanity (or whatever intelligent species exists on the earth at that time) has a highly advanced technology.
With an advanced technology, this sort of enterprise would be extremely doable.
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Everyone is assuming that later..there'd be very good technology.Well,it depends on today,as if we keep on saying that after a century,global warning would be stopped.BUT WE NEED TO DO IT NOW.as after a century,global warning would destroy humans.Though I'm doubtful that we can make a good idea out of it...Let's try,Plant trees,take air conditionars on your head and throw them to your feet(unless they are noCfc ones)... |
max_wedge
Joined: Aug 29, 2004
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If you notice, I said "assuming", meaning that IF there is intelligent life around at that time. I agree with you , there is no gaurantee that there will be any life on earth in a billion years, let alone intelligent life.
And if there is intelligent life, it's unlikely to be human, since evolution will have replaced us with some other species, which may be related to us like we are to early mammals, or may be a comepletely different species related to insects or reptiles (rise of the dinosaur?)
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tapojyoti
Joined: Oct 12, 2007
Posts: 15
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First target(from now) is to make a co2 or cfc converter.Before that,a electric converter and BEFORE that,a evergreen pollution-free electric generator.And...I think an interesting program can be watched in the history channel at 11-30 gmt on www.historychannelindia.com...oh...and I edited the thread's name by editing my first post here.So no confusion needed.Let me work on my current problem...(which is very much related to science)... |
msmmsm
Joined: Sep 03, 2003
Posts: 187
From: Edinburgh
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If the cosmos interests you, the original television program from the 80's "Cosmos" by Carl Sagan is coming out on DVD Feb2008. I remember watching this when I was young...fantastic, you can view a few episodes on you tube. |
tapojyoti
Joined: Oct 12, 2007
Posts: 15
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@all..sorry but I was unable to post here due to my exams and when I came back to Esato I couldn't find it because it had gone such a way down.. But found it atlast through google's search..  @fatreg,when the sun gets bigger ,it's surface will get closer and closer to the earth in spite of the heat that the earth gets when it's 150000 miles away from the sun's surface,imagine what the heat will be when it's 50000miles.More or less at that time the poles will reach the boiling point and evaporate...leaving the earth like a burnt cookie in a barren desert..after the sun gets to be a dwarf,the earth would just experience the life of a cookie in a barren desert at night.Though there's a thing..that as the sun is getting bigger,gravity is getting lower because of the continuous was between the expanding material and the gravity..so there's a chance that earth will get away from it's burning gleam..but another thing..our galaxy,the milky way,is charging towards our nearest neighbour the andromeda galaxy..and that also at more than 70miles per second..scientists predict that our galaxy and andromeda will collide more or less 3billion years later..successfully,our sun won't be eaten by the supermassive black holes..but will be one of it's tidal tails and let as have a grandstand view of the hole process with even our naked eye..that is..if we come to be their at that time... |
KingBooker5
Joined: May 12, 2007
Posts: > 500
From: London, England
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I don't know why every one is scared, with the way the human race is going, I doubt we will be around in even 50 years
If that 2012 thing is not true though lol |
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Posted: 2008-01-05 17:29
