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Beyond the Universe

United States Polar Offline
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#46

Love topics like these as well! Although I don't agree with the "multiverse" or "universal simulation" theories, I always wonder about the size of universal objects compared to Earth and how small, insignificant we and our planet are compared to the vast reaches of the dark realm.
"We are all programmed by modern society into narcissism and pessimism, unlike our earlier relatives."

- Max Igan
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India Rishi Offline
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#47
( This post was last modified: 05-08-2018, 10:45 AM by Rishi )

(05-08-2018, 10:19 AM)Polar Wrote: Love topics like these as well! Although I don't agree with the "multiverse" or "universal simulation" theories, I always wonder about the size of universal objects compared to Earth and how small, insignificant we and our planet are compared to the vast reaches of the dark realm.

Experts themselves aren't at agreement with each other!

But what fascinates me is how insignificant our belief is, vis-a-vis the actual fact. Before relativity happened the whole scientific community had a wrong concept. Maybe someday in future even it will be proved erroneous!

Many people even struggle to visualise time as a dimension... I have been laughed at (initially) when i said Earth's revolution in helical shaped on 4d graph!

Nowadays, i try not to have an opinion. What do i know?

BTW, this is good simplified explanation. Loved it!



"Everything not saved will be lost."

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United States Polar Offline
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#48

@Rishi,

Yeah, time is a dimension we still don't really understand yet, but it is real. I do think some conspiracy theories are true regarding space (i.e., "NASA is hiding stuff" or "There is life on other planets"), but 90% of them fall flat on actual, concrete scientific proof.
"We are all programmed by modern society into narcissism and pessimism, unlike our earlier relatives."

- Max Igan
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United States Polar Offline
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#49

Interesting article about the odd magnetic field of Ganymede and how the field shapes it's land anatomy...

Ganymede: Jupiter’s Biggest Moon Reveals Its Secrets For The First Time In 20 Years
"We are all programmed by modern society into narcissism and pessimism, unlike our earlier relatives."

- Max Igan
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India Rishi Offline
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#50

(05-08-2018, 10:52 AM)Polar Wrote: @Rishi,

Yeah, time is a dimension we still don't really understand yet, but it is real. I do think some conspiracy theories are true regarding space (i.e., "NASA is hiding stuff" or "There is life on other planets"), but 90% of them fall flat on actual, concrete scientific proof.

This should help.




Just imagine how the sun is moving through space as time passes.  Happy
"Everything not saved will be lost."

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Brazil Matias Offline
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#51
( This post was last modified: 05-09-2018, 03:28 AM by Matias )

@sanjay 

I already knew this video. It is simply sensational ..... a trip in every way. A message for all to develop humility. Humility of attitude, of thought and of knowledge. There are also no words to describe the melody of Mr. Evangelos Odysseas Papathanassiou.
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India Rishi Offline
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#52
( This post was last modified: 05-15-2018, 08:02 AM by Rishi )


*This image is copyright of its original author


If light can travel freely through space, why isn't the Earth perfectly lit all the time? Where does all the light from all the stars get lost?


*This image is copyright of its original author

Lee Mosley, Author: The Structure of Space (Amazon)

Congratulations! You've discovered Olber’s Paradox
Some time ago, scientists believed that the Universe might be infinite in extent and infinitely old. If that were so, they — Olber among them — reasoned that looking out into the night sky, we should see so many hundreds of billions of stars and more stars between them and more between them that all we would see is infinite starlight; a brightly-lit sky in every direction.The paradox is that we did not see such a thing when we believed we should.

Now, we have an answer. Actually, several answers…
First, the universe is not infinitely old; it’s only thirteen and a half billion years old, so it hasn't had enough time to make enough stars, though there certainly are plenty of them.

Second, the universe is not infinite; the universe (for us) extends to a visual limit. We just can’t observe anything past that visual horizon, so the number of stars we see (including all frequencies of radiation) is limited.

Third, there is a goodly amount of gas and dust throughout the universe, dimming starlight which passes through it.

Fourth, starlight grows dimmer as a natural function of distance. Very distant stars are not visible to the eye and are a challenge to register even on the most sensitive of instruments.

Fifth, as we look into the distance, we are also peering into the deep past; into a younger universe that had even less time to make stars.

Finally, starlight grows “old.” It dulls into the deep red end of the spectrum, becoming feeble and weaker in energy.
So, maybe no paradox after all.
But you’re in good company with Olber and with lots of other scientists who wondered exactly the same thing
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