science facts ..!!

well....guys...you...might want to check this out....River Water turns Red overnight in China
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woah....this 's cool....very ..informative and ..easy to remember..
HOW THE IMMUNE SYSTEM WORKS
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KonahaANBU said:
well I this cool video about Lights and bulbs on youtube.............hope you like it
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woah....cool video...there....well...its Minute Physica...afterall....that's to be expected...:D...Minute Physics's one of my favourite Youtube Channels...Thanks for the share...Konaha ANBU....;)
 
Albert Newton said:
KonahaANBU said:
well I this cool video about Lights and bulbs on youtube.............hope you like it
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woah....cool video...there....well...its Minute Physica...afterall....that's to be expected...:D...Minute Physics's one of my favourite Youtube Channels...Thanks for the share...Konaha ANBU....;)

Well its only channel related to science i have subscribed.................
 
MadaraUchiha said:
Scientists are yet to know whether the universe is finite or infinite.............

yeah....right...its too difficult to say that the universe is finite...or infinite....well...we cant really define finite or infinite when it is about space...but...i think universe would be rather more twisted and connected like a two dimensional surface forms a sphere ...well...that explains a lot..like the uniform expansion of the universe...but its damn difficult to assume bending a three dimensional space like that of a two dimensional one...:P
 
Albert Newton said:
MadaraUchiha said:
Scientists are yet to know whether the universe is finite or infinite.............

yeah....right...its too difficult to say that the universe is finite...or infinite....well...we cant really define finite or infinite when it is about space...but...i think universe would be rather more twisted and connected like a two dimensional surface forms a sphere ...well...that explains a lot..like the uniform expansion of the universe...but its damn difficult to assume bending a three dimensional space like that of a two dimensional one...:P

Well..........I think the universe is flat and infinite............
 
MadaraUchiha said:
Albert Newton said:
MadaraUchiha said:
Scientists are yet to know whether the universe is finite or infinite.............

yeah....right...its too difficult to say that the universe is finite...or infinite....well...we cant really define finite or infinite when it is about space...but...i think universe would be rather more twisted and connected like a two dimensional surface forms a sphere ...well...that explains a lot..like the uniform expansion of the universe...but its damn difficult to assume bending a three dimensional space like that of a two dimensional one...:P

Well..........I think the universe is flat and infinite............
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Dont forget about the worm holes that lead to different galaxies
 
I guess one of the only thing's in science that I'm interested in is how there are other universes and also how there are other earth-like planets. I read some article (don't remember where it is) where it stated that in the andromeda galaxy, there are about 180,000 earth like planets. But the andromeda galaxy is about 2 million light years away. In order to even travel a light year, we obviously need to build some sort of spaceship that can travel faster than the speed of light. Sometimes I wish I was born later in the future to enjoy the future technologies assuming the earth isn't in any global "threat" or something along those lines.
 
TheRealOne said:
I guess one of the only thing's in science that I'm interested in is how there are other universes and also how there are other earth-like planets. I read some article (don't remember where it is) where it stated that in the andromeda galaxy, there are about 180,000 earth like planets. But the andromeda galaxy is about 2 million light years away. In order to even travel a light year, we obviously need to build some sort of spaceship that can travel faster than the speed of light. Sometimes I wish I was born later in the future to enjoy the future technologies assuming the earth isn't in any global "threat" or something along those lines.

lol...yeah...even i feel that way...

and...milky way galaxy itself has 44 million earth like / earth sized planets...and..there are some billion galaxies in the universe... O.O ...
 
MadaraUchiha said:
Empty space is not actually empty space.............General theory of relativity permits time travel.............

I bet you won't find a single paper written by a worthy researcher which would support that last statement =)

MadaraUchiha said:
Caution: The word logic should not be used by those who believe that science is the absolute measure of truth(well, I don't), as logic was murdered over a century ago, especially by modern physicists...................

What did happen a century ago? O.o What did modern physicists do? :what:
 
Sindar said:
MadaraUchiha said:
Empty space is not actually empty space.............General theory of relativity permits time travel.............

I bet you won't find a single paper written by a worthy researcher which would support that last statement =)

MadaraUchiha said:
Caution: The word logic should not be used by those who believe that science is the absolute measure of truth(well, I don't), as logic was murdered over a century ago, especially by modern physicists...................

What did happen a century ago? O.o What did modern physicists do? :what:

well....that was when Quantum Mechanics came into light...and not to mention general theory of relativity....they deviatedcompletely from the Common sense and Logic.....
 
Empty space is not actually empty space.............General theory of relativity permits time travel.............

I bet you won't find a single paper written by a worthy researcher which would support that last statement =)

Caution: The word logic should not be used by those who believe that science is the absolute measure of truth(well, I don't), as logic was murdered over a century ago, especially by modern physicists...................

What did happen a century ago? O.o What did modern physicists do? :what:

well....that was when Quantum Mechanics came into light...and not to mention general theory of relativity....they deviatedcompletely from the Common sense and Logic.....
Yep...........Slowing down of time, saying that there is nothing called objective reality, etc.............


Empty space is not actually empty space.............General theory of relativity permits time travel.............

I bet you won't find a single paper written by a worthy researcher which would support that last statement =)

Caution: The word logic should not be used by those who believe that science is the absolute measure of truth(well, I don't), as logic was murdered over a century ago, especially by modern physicists...................

What did happen a century ago? O.o What did modern physicists do? :what:

Theoretically..........But it is obvious, right? When you say that speed of light is the only invariant, then time is also a relative quantity, then time travel is possible, of course, only when you travel close to the speed of light.............Time slows down and you get years ahead.........


I guess one of the only thing's in science that I'm interested in is how there are other universes and also how there are other earth-like planets. I read some article (don't remember where it is) where it stated that in the andromeda galaxy, there are about 180,000 earth like planets. But the andromeda galaxy is about 2 million light years away. In order to even travel a light year, we obviously need to build some sort of spaceship that can travel faster than the speed of light. Sometimes I wish I was born later in the future to enjoy the future technologies assuming the earth isn't in any global "threat" or something along those lines.

Unfortunately travelling faster than light has certain complications, because when you return, like 10 years later, you would actually be in the year 100000 or something in earth..............So, you have to pass on this message that a spaceship has gone for thousands of years..........Otherwise, it would be pointless.............And another thing is, you need an infinite amount of energy to accelerate to reach 'c'...............Of course, sh**y things like length contraction, etc., happen..............
 
well....that was when Quantum Mechanics came into light...and not to mention general theory of relativity....they deviatedcompletely from the Common sense and Logic.....

Well, doesn't the idea that Sun doesn't rotate around the Earth is also deviant from the common sense? =) If you look into what Quantum Mechanics actually does you won't see anything illogical there, it is just a bunch of theories and models that come from them, some proven by experimentation and some aren't. You can also check every result they got, because it is mostly just math. All problems that people have with it actually come from irresponsible interpretations, that postulate things like time travel and other stuff that has nothing to do with the science itself.

Theoretically..........But it is obvious, right? When you say that speed of light is the only invariant, then time is also a relative quantity, then time travel is possible, of course, only when you travel close to the speed of light.............Time slows down and you get years ahead.........

Nope it isn't. When you talk about time travel I assume you mean that you can go into the future or the past or something. But that is a pretty liberal interpretation of the results from the theory. What I remember they managed to show is that a clock which moves with a certain speed relative to another clock would develop a mismatch, which you can interpret as "the speed of time is different for the moving object". But I don't see any logical problems with that. Think about it, even if you take a rocket that moves pretty fast compare to most things you encounter in your everyday life, that effect that doesn't show at all, unless you do a really thorough measurement. What I want to say is, we humans have no way to experience this change in the flow of time, we never move fast enough. But that is a bad reason to deny the effect. It would be the same as denying existence of magnetic field just because you can't see it.
And "you get years ahead" - unless you are an electron or some other extremely small particle I don't think that would be possible for you. I mean, moving with a speed close enough to the speed of light to get that effect. This notion of "getting years ahead of your own time" comes exclusively from science fiction and not from the science itself.

But don't get me wrong, I am not a proponent of some quantum theory or General relativity or anything of that, I don't think I have good enough understanding to have a say there. But I do like methodical and logical way of describing natural phenomena. When a theory is mathematically sound and agrees with the experiments - why not use it, even the results it yields are not what you would expect. Btw, if you wonder, this time dilation thing has experimental proves, you can read a little about it here - Time dilation, experimental confirmation
 
well....that was when Quantum Mechanics came into light...and not to mention general theory of relativity....they deviatedcompletely from the Common sense and Logic.....

Well, doesn't the idea that Sun doesn't rotate around the Earth is also deviant from the common sense? =) If you look into what Quantum Mechanics actually does you won't see anything illogical there, it is just a bunch of theories and models that come from them, some proven by experimentation and some aren't. You can also check every result they got, because it is mostly just math. All problems that people have with it actually come from irresponsible interpretations, that postulate things like time travel and other stuff that has nothing to do with the science itself.

Theoretically..........But it is obvious, right? When you say that speed of light is the only invariant, then time is also a relative quantity, then time travel is possible, of course, only when you travel close to the speed of light.............Time slows down and you get years ahead.........

Nope it isn't. When you talk about time travel I assume you mean that you can go into the future or the past or something. But that is a pretty liberal interpretation of the results from the theory. What I remember they managed to show is that a clock which moves with a certain speed relative to another clock would develop a mismatch, which you can interpret as "the speed of time is different for the moving object". But I don't see any logical problems with that. Think about it, even if you take a rocket that moves pretty fast compare to most things you encounter in your everyday life, that effect that doesn't show at all, unless you do a really thorough measurement. What I want to say is, we humans have no way to experience this change in the flow of time, we never move fast enough. But that is a bad reason to deny the effect. It would be the same as denying existence of magnetic field just because you can't see it.
And "you get years ahead" - unless you are an electron or some other extremely small particle I don't think that would be possible for you. I mean, moving with a speed close enough to the speed of light to get that effect. This notion of "getting years ahead of your own time" comes exclusively from science fiction and not from the science itself.

But don't get me wrong, I am not a proponent of some quantum theory or General relativity or anything of that, I don't think I have good enough understanding to have a say there. But I do like methodical and logical way of describing natural phenomena. When a theory is mathematically sound and agrees with the experiments - why not use it, even the results it yields are not what you would expect. Btw, if you wonder, this time dilation thing has experimental proves, you can read a little about it here - Time dilation, experimental confirmation

Yea, I was talking about particles like electrons, neutrinos..........Obviously, we would need an infinite amount of energy to accelerate to that speed.............
 
MadaraUchiha said:
Yea, I was talking about particles like electrons, neutrinos..........Obviously, we would need an infinite amount of energy to accelerate to that speed.............

Well, what meaning time has for an electron, really? I mean, you can't see or touch, you can hardly measure its position, so just unconditionally applying our perception of time to it doesn't necessarily seems to me the right thing to do =)

Also that is irrelevant to the topic, but here is an interesting thing to think about. How do you think an electron looks like? Because an image of an object that you get when looking at it is formed due to your eye catching light that was reflected from that object. Would a single electron reflect light? I don't think so. So basically it has no image, no appearance in terms of our ways of persecution, in other words you can say it looks like nothing. That seems to me to be just as weird as the time tricks that go around with fast moving objects =)
 
well....i was not talking about time travel but the fact that quantum physics is full of randomness....and at atomic level....things(almost everything) become different from what we see in our daily life....and...even the behaviour of the sub-atomic particles depend on the distance between them.......and what's more..?...atomic particles like electrons seem to dissapear ....and....appear at different place...and...also seem to co exist...and thats why we couldnt pinpoint the position of electron..mostly......to explain which comes the Parallel universe....theory......and..i think its not atall logical...and is harder to believe....well......quantum physics makes it more and more complicated...but...it gets more beautiful...with it...and...yeah....it gets all mathematical in quantum physics...and...damn...i suck at math....:P
 
Sindar said:
MadaraUchiha said:
Yea, I was talking about particles like electrons, neutrinos..........Obviously, we would need an infinite amount of energy to accelerate to that speed.............

Well, what meaning time has for an electron, really? I mean, you can't see or touch, you can hardly measure its position, so just unconditionally applying our perception of time to it doesn't necessarily seems to me the right thing to do =)

Also that is irrelevant to the topic, but here is an interesting thing to think about. How do you think an electron looks like? Because an image of an object that you get when looking at it is formed due to your eye catching light that was reflected from that object. Would a single electron reflect light? I don't think so. So basically it has no image, no appearance in terms of our ways of persecution, in other words you can say it looks like nothing. That seems to me to be just as weird as the time tricks that go around with fast moving objects =)
Heisenberg's Uncertainty principle...........And De-Broglie's hypothesis...........An electron is a wave.........
 
MadaraUchiha said:
Sindar said:
MadaraUchiha said:
Heisenberg's Uncertainty principle...........And De-Broglie's hypothesis...........An electron is a wave.........

Electron is also a particle :P Here - Wave?particle duality
I know.............I meant at high speeds.............Do I have to be specific everytime?

Nope, but since you are stating that an electron is a wave I have to point out that there is an alternative opinion =) And it is not like the electron switches between being a particle or a wave depending on its speed, it is both all the way through, its properties may differ though.
 
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