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Science Discussion-Space And Universe. |
NightBlade
Joined: Jul 29, 2007
Posts: > 500
From: Nessebar, Bulgaria
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On the contrary.
But people are too lazy to post anything, I guess. 
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tapojyoti
Joined: Oct 12, 2007
Posts: 15
From: The world above this one
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Or too freaky..maybe..  |
tapojyoti
Joined: Oct 12, 2007
Posts: 15
From: The world above this one
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Hmmm..now that I look back at my previous posts,I think they need a lot of correction..1stly,the sun has approximately 4.5 billion years to end it's life cycle,2ndly,the solar system and life on earth can also be destroyed during the milky way and andromeda collision..Hmmm..I was a bit misinformed then,but my quest for knowledge led me to know a lot more..in one year..and the worst thing is that I've forgotten how to post cliparts here..and 3rdly,are people still interested..I should think it'd get a bit boring and misunderstandable to some ppl.Bye..for now.. |
QVGA
Joined: May 23, 2006
Posts: > 500
From: Pakistan
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scientifically its proven that the process of aging can be slowed if the body travels extremely fast. how the hell can that be possible practically?
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paul101
Joined: Mar 26, 2007
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On 2008-08-20 22:13:59, QVGA wrote:
scientifically its proven that the process of aging can be slowed if the body travels extremely fast. how the hell can that be possible practically?
yeah tats because you're time travelling 
I don't wanna sleep
I don't wanna dream
'cause my dreams don't comfort me |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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On 2008-08-20 22:13:59, QVGA wrote:
scientifically its proven that the process of aging can be slowed if the body travels extremely fast. how the hell can that be possible practically?
because time is relative to your frame of reference. If you speed up close to the speed of light, time for you remains the same, but the rest of the universe sees your time frame slow down. So what seems like minutes for you will be hundreds of years for everyone else.
Some pretty funky maths proves (and experiments have verified the maths) that as an object speeds up, it's time slows down. At the speed of light, time stops completely (but only for the object that is travelling at the speed of light).
So time is not absolute.
However you have to be going very close to the speed of light for the time difference to be significant. For example the space shuttle travels many thousands of km's an hour, but the astronauts on the shuttle don't notice any time difference when they return to earth (it can be measured by an atomic clock however).
However even if you could travel close to the speed of light, there is no real advantage in travelling very fast in order to slow the aging process. In reality it's not the aging process that is slowed down, but time itself. Time still passes at the same rate for you, and your body still ages at the same rate relative to your own experience of time.
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tapojyoti
Joined: Oct 12, 2007
Posts: 15
From: The world above this one
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While Travelling near the velocity of light,you'll feel something..something that tells you you're twice your original mass.While travelling at 10% of the speed of light(10/100 x 300000 km/s) your mass will be increased by 10%.And if you travel at the speed of light,your mass will become infinite and therefore(with the e=mc^2 formula),it'll take you infinite amount of energy to travel at the speed.And yes,aging slows as you travel fast,and so does time.Also,aging slows down were the space-time continuum is warped,and aging stops permanently when it's twisted or made a hole through(e.g. near a stellar black hole). |
max_wedge
Joined: Aug 29, 2004
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From: Australia
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true but because it's all relative, you won't feel your own mass increasing.
If you stand on a scale in the spaceship, you will still appear to weigh your normal weight 
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tapojyoti
Joined: Oct 12, 2007
Posts: 15
From: The world above this one
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@bobafett,thanks for the link..the most important(and the only important) thing it gave me was the mass of the sun..it'll help me determine the minimum density of a black hole under normal conditions. @others..I'm currently busy with this hawking radiation thingy..and about that time travelling,we can't do it by holding a golden clock,setting the time where we want to go and pressing a red button..but recently,photon studies reveal that photon subparticles respond each other at the same time however farther apart they are,which may only be capable of making large-space-distance telecommunications.  thanks for the support.. |
bavlondon2
Joined: Jan 28, 2006
Posts: > 500
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These are some of my fav space vids on youtube
http://www.youtube.com/watch?v=mcBV-cXVWFw&feature=related
The most important image ever taken
http://www.youtube.com/watch?v=V9HLIOnTapE
Life in this universe
Also look at the size of Acturus!!!!
http://www.youtube.com/watch?v=9ptdbNUtpx4&feature=related
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[ This Message was edited by: bavlondon2 on 2008-08-22 23:09 ] |
tapojyoti
Joined: Oct 12, 2007
Posts: 15
From: The world above this one
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Looks like the topic's never going to be much interesting  ..atleast not interesting enough to let me find it easily.Anyway,did anyone hear or know anything about the Higgs Boson particle(or god particle,if you like..)?It was associated with all the enthusiasm of the newspapers about the 'world'(I'd have trusted it more if they said 'earth',as world means everything we know of..also called realm) being destroyed last wednesday.The US were trying to ban it at march but their calculations showed that during the underground experiment,there would be no chance of compressing 1036 protons to occupy one proton's space and even if it did,the black holes'd be so small that they'd almost immediately evaporate into the constituent particles..or maybe the god particle?In a black hole,all properties of matter and energy are altered..it may be that it would evaporate into the god particle(s) to be pictured by the Atlas. |
tapojyoti
Joined: Oct 12, 2007
Posts: 15
From: The world above this one
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The LHC is closed down for the winter to be opened sometime in the beginning of next year.Some links I recommend and refer to.. Info on the Sun(helios,in greek): http://helios.gsfc.nasa.gov ,CERN Homepage: http://www.cern.ch ,Nasa(National Aeronautics and Space Administration) Homepage: http://www.nasa.gov ,ESA Homepage: http://www.esa.int more of my referred links to be shared soon.
[ This Message was edited by: tapojyoti on 2008-10-16 16:40 ] |
tapojyoti
Joined: Oct 12, 2007
Posts: 15
From: The world above this one
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A quite useful and informative article on and effect caused by dark energy- http://imagine.gsfc.nasa.gov/docs/features/news/news.html ,Another article on dark energy existence found by observing supernovaes: http://www.lbl.gov/Science-Articles/Archive/dark-energy.html To correct a previous post of mine,time stops when one travels at the speed of light,and therefore time will slow down at nearer speeds.But,as max said,here also,if you're suffocating in a closed box travelling at the speed of light,you won't get to know of the speed at which you're travelling or indeed if you're travelling at all,and won't get to notice the stoppage of time.But it is,in theory,impossible to travel at c,as you not being weightless and the box not being weightless,it will require an almost infinite amount of energy to get you moving at the speed.And hell,once you approach 99% the speed of light,theory says,'your mass doubles' which means you'll require double energy to move at your normal pace,which means it'll become difficult to move and would take more time..so I think you slow down with time..and the brief history of time says what I said there..it'll take an infinite amount of energy to go at the speed of light,and there being no infinite amount of energy available on a finite universe,say the one in which we live in,you'll just have to stop your rockets and get down to lunch.
[ This Message was edited by: tapojyoti on 2009-01-01 18:39 ] | |
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Posted: 2008-06-27 18:15
