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A Baffling Physics Question That Should Make You Think (pg. 4)
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| pkcRAISTLIN |
| quote: | Originally posted by SuspicionVandit
Just think of a grenade. The particles of a grenade after the boom are traveling very very fast, eventually slowing down to resistance of the air and gravity. This is only a very few second, and this is relatively a very small bang in comparison to that needed to spark the universe.
Like I said earlier padwan, the universe may not
1) have yet reached a point where it has succumbed to its internal resistance. So we could very well have billions of more years to go before there an observation can be made that the universe has ceased its accelerated growth.
2) the bang was just so enormous that the outer most particles are traveling too fast to be affected by the gravity of particles of a different time/space. |
the only issue i have with this is that the grenade's fragments are slowing down from the instant they explode, right? at no time do they accelerate after the initial bang. unless im mistaken, which is more than likely. |
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| Renzo |
| There's no air friction in space. There is friction. Very little, though. |
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| SuspicionVandit |
yeah but explain the molten steel
yeah i'm exit. i feel bad when I'm wrong. bad jimmy bad jimmy smith jr |
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| pkcRAISTLIN |
| quote: | Originally posted by SuspicionVandit
yeah but explain the molten steel |
:stongue: :stongue: |
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| boris_the_bear |
| quote: | Originally posted by Krypton
The law of conservation of mass and energy states that matter cannot be created or destroyed in a system, only transferred. So, how did matter and energy get here in the first place? Is it infinite? Well, if it's infinite, and the universe had a beginning at the Big Bang, then WTF? |
this topic is a constant interest for thousands of physicists (like my dad) around the world. and you want someone on TA to give you THE answer straight out of their pocket? massive fail:rolleyes: |
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| yukii |
lawl, boris we don't expect that- we just like to debate and share ideas! :)
plur |
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| trancechan |
big bang theory is clearly a lie devised by the liberal media
let's bring this discussion back to god, this time with six wings. |
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| Acton |
Oooooh where do I start in this thread :p
With the original post I guess....
| quote: | Originally posted by Krypton
The law of conservation of mass and energy states that matter cannot be created or destroyed in a system, only transferred. So, how did matter and energy get here in the first place? Is it infinite? Well, if it's infinite, and the universe had a beginning at the Big Bang, then WTF? |
....not by critising it, but adding to it to induce further confusion in the COR...
Particles can actually appear out of nowhere, they can just spontaneously be "created" in our universe having borrowed energy from essentially nowhere! They don't stick around much and have an incredibly small lifespan, but still, food for thought :)
As for the "big crunch", we don't know if that's going to happen yet as we haven't summed up all the forces involved to make a conclusion. There is obviously gravity which is wanting to pull the universe back together, but if you didn't know there is a force that is actually increasing the rate of expansion of our universe. Interesting stuff. |
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| Sushipunk |
| quote: | Originally posted by Acton
Particles can actually appear out of nowhere, they can just spontaneously be "created" in our universe having borrowed energy from essentially nowhere! They don't stick around much and have an incredibly small lifespan, but still, food for thought :) |
I've read about that before, but it's so ing vague. And, there are lots of issues with what could only be described as 'measurement error'. |
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| Acton |
| quote: | Originally posted by Sushipunk
I've read about that before, but it's so ing vague. And, there are lots of issues with what could only be described as 'measurement error'. |
What I mentioned in my post is explained by the Uncertainty Principle, which essentially, is all to do with measurement :). |
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| Sushipunk |
| quote: | Originally posted by Acton
What I mentioned in my post is explained by the Uncertainty Principle, which essentially, is all to do with measurement :). |
It's definitely interesting , I'll give you that.
My biggest issue with all of this is mostly the measurement factor though. I mean, we THINK we're measuring it all correctly, but are we even getting close? :p
It's also why I think this is such a popular topic of disussion. People can throw in any and all kinds of theories without any risk of being proven wrong :p |
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| Lira |
| quote: | Originally posted by Krypton
If the universe has a beginning, how could matter and energy have been here all along? |
Why should the universe have a beginning? And what makes you think the big bang must've been the very initial starting point of the universe?
As a matter of fact, why do you believe the universe we know is all there is? There could be many more multiverses! |
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