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Ask a physicist anything.

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TheReasoner

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The following on t-shirts is rather popular here:
Maxwell.png


Does this mean God speaks math?
I always thought He did. Question now is, how do you tell someone something more mundane, like 'hello' in math?
 
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Doveaman

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4% normal matter, 25% dark matter (based on evidence and observation), and the rest as dark energy (also based on evidence and observation)
Original statement:
4% normal matter, 25% dark matter (based on assumptions), and the rest as dark energy (also based on assumptions)
Please don't misquote me please. It creates a false impression of how the universe actually works. Use you own ink. Thank you.
 
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Doveaman

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What I find interesting is that they admit there is something theoretically wrong but then try to make being wrong seem like a good thing scientifically.
Which betrays your utter lack of understanding of how science works.
Which betrays your utter support for being wrong until proven right. :)
 
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Doveaman

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The following on t-shirts is rather popular here:
Maxwell.png
This would look cool in my signature. If only I understood it. :)
Does this mean God speaks math?
I always thought He did. Question now is, how do you tell someone something more mundane, like 'hello' in math?
Just ask an astrophysicist. One who believes in black holes. :)
 
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Michael

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4% normal matter, 25% dark matter (based on assumptions), and the rest as dark energy (also based on assumptions) doesn’t say much for the mainstream model of the universe, which they themselves readily admit is far from adequate.

This was actually my favorite quote:

She points to new data from experiments like NASA's Fermi satellite that are consistent with the notion that dark matter particles in our own galaxy are annihilating with one another at a measurable rate, which in turn could reveal their properties.

Now of course they don't mean they can measure it 'here on Earth' they mean they intend to "measure it" based on distant observations and then curve fit a number for us. All the while this annihilation process remains shy around a real empirical experiment. They can't demonstrate it exists, but evidently they can measure it's rate of annihilation? :) Come on. This circular feedback loop thing they have going is getting ridiculous. They are assuming the consequent from beginning to end. The whole thing in one giant logical fallacy.

Now assuming they actually 'measured' a rate of annihilation in a real experiment with real control mechanisms that might be a logical argument. Since they skipped the first part, the whole thing is just a goofy logical fallacy.
 
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Doveaman

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the Big Bang isn't a bang.
Georges Lemaitre (1894-1966), a Belgian mathematician and Catholic priest who developed the theory of the Big Bang. Lemaitre described the beginning of the universe as a burst of fireworks, comparing galaxies to the burning embers spreading out in a growing sphere from the center of the burst. He believed this burst of fireworks was the beginning of time... Source

Has the Big Bang theory been modified from what it was in the beginning?

Duncan Aikman of the New York Times spotlighted Lemaitre's view in 1933: "'There is no conflict between religion and science,' Lemaitre has been telling audiences over and over again in this country ....His view is interesting and important not because he is a Catholic priest, not because he is one of the leading mathematical physicists of our time, but because he is both." Same source

Was Lemaitre's Big Bang theory influenced by his religion?
 
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Wiccan_Child

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Georges Lemaitre (1894-1966), a Belgian mathematician and Catholic priest who developed the theory of the Big Bang. Lemaitre described the beginning of the universe as a burst of fireworks, comparing galaxies to the burning embers spreading out in a growing sphere from the center of the burst. He believed this burst of fireworks was the beginning of time... Source

Has the Big Bang theory been modified from what it was in the beginning?
Yes.

Duncan Aikman of the New York Times spotlighted Lemaitre's view in 1933: "There is no conflict between religion and science," Lemaitre has been telling audiences over and over again in this country ....His view is interesting and important not because he is a Catholic priest, not because he is one of the leading mathematical physicists of our time, but because he is both." Same source

Was Lemaitre's Big Bang theory influenced by his religion?
I doubt it.
 
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pgp_protector

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Do fish drink water?

Saltwater or Freshwater Fish ? :)

WiKiAnswers said:
Fresh water fish absorb water through their skin and gills, saltwater fish actually do drink water.

In saltwater fish, they have to drink because their body's concentration of salt is lower than the surrounding water. Therefore, they have to drink huge amounts of water every day to stay hydrated.

In freshwater fish, their salt concentration is higher than that of the surrounding water, and, as osmosis dictates, they absorb water through their highly permeable skin. To keep from bursting, freshwater fish actually have to excrete water, up to 10 times their body weight daily, unlike saltwater fish.
 
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Wiccan_Child

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Do fish drink water?
They actually drink very little water. Their food is rich in water, so they ingest very little actual seawater.
They're like cats: all the water they need comes from food.

Why does seawater give you a sore throat?
I never knew that it did. My tentative hypothesis is that the bacteria in seawater lodge in your throat and create an infection.
 
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Wiccan_Child

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Do you think that string theory (m theory) will help identify what Dark matter / Dark Energy is?
It might, though string theory is too speculative for my taste. That said, it's the best we've got at understanding what's going on out there.
 
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wayseer

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WC - you said earlier

More generally, a quantum particle exists as the sum total of all possible states it could be in.

I am no scientist and know very little concerning the area but I am interested in how 'something' can be in two or more places at one. I have heard this phenomena called 'possibilities'.

Care to elaborate for this unfortunate?
 
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