<![CDATA[Atheist Forums - Physical Sciences]]> https://atheistforums.org/ Sun, 15 Nov 2026 20:25:37 +0000 MyBB <![CDATA[Paradox?]]> https://atheistforums.org/thread-66469.html Mon, 23 Jun 2025 14:39:36 +0000 Sandman]]> https://atheistforums.org/thread-66469.html
Unruh Effect:
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Link removed, please refer to the rules, 30/30 in particular.

Due to the Unruh effect a constantly accelerating observer would find himself in a heat bath of ever increasing temperature.

An inertial observer would see the accelerating observer but would detect no heat bath.

Hypothetically, the accelerating observer would eventually be fried by the increasing heat.

(A hypothetical because the human race has no way to accelerate an observer to such a high speed)

So would the inertial observer, who only sees the accelerating observer (and detects no heat bath), see a dead or alive accelerating observer?]]>
Unruh Effect:
Administrator Notice
Link removed, please refer to the rules, 30/30 in particular.

Due to the Unruh effect a constantly accelerating observer would find himself in a heat bath of ever increasing temperature.

An inertial observer would see the accelerating observer but would detect no heat bath.

Hypothetically, the accelerating observer would eventually be fried by the increasing heat.

(A hypothetical because the human race has no way to accelerate an observer to such a high speed)

So would the inertial observer, who only sees the accelerating observer (and detects no heat bath), see a dead or alive accelerating observer?]]> <![CDATA[Cosmic Ocean]]> https://atheistforums.org/thread-66452.html Sat, 07 Jun 2025 15:26:31 +0000 Kitan Etos]]> https://atheistforums.org/thread-66452.html Record breaking water reservoir found at the heart of the universe, containing 140 trillion times Earth’s water!

Elcabildo]]> Record breaking water reservoir found at the heart of the universe, containing 140 trillion times Earth’s water!

Elcabildo]]> <![CDATA[Black Holes Don’t Exist!]]> https://atheistforums.org/thread-66435.html Fri, 23 May 2025 00:12:03 +0000 Rift Zone]]> https://atheistforums.org/thread-66435.html Administrator Notice
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]]> Administrator Notice
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]]> <![CDATA[The Multiverse Hypothesis Explained by Neil deGrasse Tyson]]> https://atheistforums.org/thread-66409.html Wed, 16 Apr 2025 21:09:22 +0000 Drew_2013]]> https://atheistforums.org/thread-66409.html https://www.youtube.com/watch?v=h6OoaNPSZeM

Its about a 10 minute video. Although they give the usual disclaimer about multiverse theory may be considered a mental construct as opposed to a scientific hypothesis, its clear they take this idea very seriously. The video discusses the four main multiverse theories. They all have one thing in common, all the universes laws of physics that vary so that one was bound to have the conditions that support life. There is no question part of what multiverse theory seeks to do is explain the fine-tuning of the universe.]]> https://www.youtube.com/watch?v=h6OoaNPSZeM

Its about a 10 minute video. Although they give the usual disclaimer about multiverse theory may be considered a mental construct as opposed to a scientific hypothesis, its clear they take this idea very seriously. The video discusses the four main multiverse theories. They all have one thing in common, all the universes laws of physics that vary so that one was bound to have the conditions that support life. There is no question part of what multiverse theory seeks to do is explain the fine-tuning of the universe.]]> <![CDATA[Action and the Light takes all paths concept.]]> https://atheistforums.org/thread-66385.html Fri, 04 Apr 2025 03:59:32 +0000 Goosebump]]> https://atheistforums.org/thread-66385.html
1. particles of light and possibly all others, 'consider' all the paths (wtf does a particle considering its path mean?).
2. most get canceled out by each-other like competing waves?
3. We observe the one with the "least action". But then they put the planet Mercury in the video and claimed it was active the same way. So all particles are acting this way?
4. So the particles in my body are "considering" on a path to the fried banana stand but when I don't get a fried banana those paths were canceled out some how? Meaning all the while there was a chance, possibly infinite chances of me getting a fried banana but I didn't because my brother is confusing me?
5. How, if at all, do I make the particles in my body more likely to chose, when considering paths, the one to the friend banana stand?

This might be a tall order. But WTF does any of this mean or have to do with anything? Or should I just go back to my milk and cookies and let the brainiacs lose sleep, and possibly fried bananas, over this one?]]>
1. particles of light and possibly all others, 'consider' all the paths (wtf does a particle considering its path mean?).
2. most get canceled out by each-other like competing waves?
3. We observe the one with the "least action". But then they put the planet Mercury in the video and claimed it was active the same way. So all particles are acting this way?
4. So the particles in my body are "considering" on a path to the fried banana stand but when I don't get a fried banana those paths were canceled out some how? Meaning all the while there was a chance, possibly infinite chances of me getting a fried banana but I didn't because my brother is confusing me?
5. How, if at all, do I make the particles in my body more likely to chose, when considering paths, the one to the friend banana stand?

This might be a tall order. But WTF does any of this mean or have to do with anything? Or should I just go back to my milk and cookies and let the brainiacs lose sleep, and possibly fried bananas, over this one?]]> <![CDATA[Oxygen discovery defies knowledge of the deep ocean]]> https://atheistforums.org/thread-66044.html Mon, 22 Jul 2024 16:20:47 +0000 zebo-the-fat]]> https://atheistforums.org/thread-66044.html Oxygen discovery defies knowledge of the deep ocean

Scientists have discovered “dark oxygen” being produced in the deep ocean, apparently by lumps of metal on the seafloor.
About half the oxygen we breathe comes from the ocean. But, before this discovery, it was understood that it was made by marine plants photosynthesising - something that requires sunlight.
Here, at depths of 5km, where no sunlight can penetrate, the oxygen appears to be produced by naturally occurring metallic “nodules” which split seawater - H2O - into hydrogen and oxygen.
Several mining companies have plans to collect these nodules, which marine scientists fear could disrupt the newly discovered process - and damage any marine life that depends on the oxygen they make.


https://www.bbc.co.uk/news/articles/c728ven2v9eo]]> Oxygen discovery defies knowledge of the deep ocean

Scientists have discovered “dark oxygen” being produced in the deep ocean, apparently by lumps of metal on the seafloor.
About half the oxygen we breathe comes from the ocean. But, before this discovery, it was understood that it was made by marine plants photosynthesising - something that requires sunlight.
Here, at depths of 5km, where no sunlight can penetrate, the oxygen appears to be produced by naturally occurring metallic “nodules” which split seawater - H2O - into hydrogen and oxygen.
Several mining companies have plans to collect these nodules, which marine scientists fear could disrupt the newly discovered process - and damage any marine life that depends on the oxygen they make.


https://www.bbc.co.uk/news/articles/c728ven2v9eo]]> <![CDATA[Fern with the largest genome in the world]]> https://atheistforums.org/thread-65982.html Wed, 05 Jun 2024 17:33:01 +0000 Lucian]]> https://atheistforums.org/thread-65982.html It seems to add to the power of the "onion test" that basically argues that if someone wants to claim that most or all of the human genome is functional and necessary, they need to explain the same in these other genomes of what seem more simple organisms. If they can't do that, for these larger genomes, why assume that all the human genome or other animal's genomes must be largely necessary, and the product of good coding.]]> It seems to add to the power of the "onion test" that basically argues that if someone wants to claim that most or all of the human genome is functional and necessary, they need to explain the same in these other genomes of what seem more simple organisms. If they can't do that, for these larger genomes, why assume that all the human genome or other animal's genomes must be largely necessary, and the product of good coding.]]> <![CDATA[Huge ring of galaxies challenges thinking on cosmos]]> https://atheistforums.org/thread-65765.html Fri, 12 Jan 2024 16:39:21 +0000 zebo-the-fat]]> https://atheistforums.org/thread-65765.html Huge ring of galaxies challenges thinking on cosmos

Scientists at the University of Central Lancashire have discovered a gigantic, ring-shaped structure in space.
It is 1.3bn light-years in diameter and appears to be roughly 15 times the size of the Moon in the night sky as seen from Earth.
Named the Big Ring by the astronomers, it is made up of galaxies and galaxy clusters.
They say that it is so big it challenges our understanding of the universe.

Such large structures should not exist according to one of the guiding principles of astronomy, called the cosmological principle. This states that all matter is spread smoothly across the Universe.
Although stars, planets and galaxies are huge clumps of matter in our eyes, in the context of the size of the universe they are insignificant - and the theory is that much bigger patches of matter should not form.

https://www.bbc.co.uk/news/science-environment-67950749]]> Huge ring of galaxies challenges thinking on cosmos

Scientists at the University of Central Lancashire have discovered a gigantic, ring-shaped structure in space.
It is 1.3bn light-years in diameter and appears to be roughly 15 times the size of the Moon in the night sky as seen from Earth.
Named the Big Ring by the astronomers, it is made up of galaxies and galaxy clusters.
They say that it is so big it challenges our understanding of the universe.

Such large structures should not exist according to one of the guiding principles of astronomy, called the cosmological principle. This states that all matter is spread smoothly across the Universe.
Although stars, planets and galaxies are huge clumps of matter in our eyes, in the context of the size of the universe they are insignificant - and the theory is that much bigger patches of matter should not form.

https://www.bbc.co.uk/news/science-environment-67950749]]> <![CDATA[When the ice melts]]> https://atheistforums.org/thread-65705.html Tue, 12 Dec 2023 17:48:03 +0000 Kitan Etos]]> https://atheistforums.org/thread-65705.html Quote:What will Earth look like if all its land ice melts? Here's your answer.

[Image: less-than-p-greater-than-a-map-of-the-un...d=19512332]
Other maps at the link:
Upworthy]]> Quote:What will Earth look like if all its land ice melts? Here's your answer.

[Image: less-than-p-greater-than-a-map-of-the-un...d=19512332]
Other maps at the link:
Upworthy]]> <![CDATA[Scientific facts that freak me out.]]> https://atheistforums.org/thread-65595.html Wed, 08 Nov 2023 15:33:19 +0000 Jackie]]> https://atheistforums.org/thread-65595.html
1. Color is in light, not objects. I accept it, but when I first learned this it freaked me out. 

2. If you could go as fast as the speed of light from your point of view you would be standing still. 

3. Time moves slower the closer you are to earth's surface and faster the further away. There is a calculable difference say being at the top of the Burj Khalifa building vs being at the shore of Miami beach. 

4. But I just learned this last night for the first time watching a short clip of Neil deGrasse Tyson's star talk. The bottom of your tire, even when your vehicle is in motion, is moving at 0mph. The top of your tire is moving up to 2x the speed of the vehicle itself. 

5. You could fit almost 5 billion of our suns in to the sphere of the largest known star(so far) UY Scuti. 

What scientific facts freak you out in a good way?]]>
1. Color is in light, not objects. I accept it, but when I first learned this it freaked me out. 

2. If you could go as fast as the speed of light from your point of view you would be standing still. 

3. Time moves slower the closer you are to earth's surface and faster the further away. There is a calculable difference say being at the top of the Burj Khalifa building vs being at the shore of Miami beach. 

4. But I just learned this last night for the first time watching a short clip of Neil deGrasse Tyson's star talk. The bottom of your tire, even when your vehicle is in motion, is moving at 0mph. The top of your tire is moving up to 2x the speed of the vehicle itself. 

5. You could fit almost 5 billion of our suns in to the sphere of the largest known star(so far) UY Scuti. 

What scientific facts freak you out in a good way?]]> <![CDATA[The Maunder Minimum]]> https://atheistforums.org/thread-65559.html Mon, 23 Oct 2023 00:35:52 +0000 Bucky Ball]]> https://atheistforums.org/thread-65559.html
https://en.wikipedia.org/wiki/Maunder_Minimum

]]>
https://en.wikipedia.org/wiki/Maunder_Minimum

]]> <![CDATA[The canary in the icefield]]> https://atheistforums.org/thread-65417.html Thu, 07 Sep 2023 02:16:37 +0000 LinuxGal]]> https://atheistforums.org/thread-65417.html https://www.cbc.ca/newsinteractives/feat...e-icefield

"Scientists have tracked the fate of the Peyto Glacier in the Rocky Mountains for decades as a global reference point. It’s disappearing faster than expected — a warning sign for communities downstream."

(I'm a believer.  Last week I went up to Mt. Hood where I expected to see the glacier at Timberline Lodge, the "Magic Mile", elevation 6000 feet, the one I first hiked when I was ten years old and it wannit there, it had retracted to 9,000 feet)]]> https://www.cbc.ca/newsinteractives/feat...e-icefield

"Scientists have tracked the fate of the Peyto Glacier in the Rocky Mountains for decades as a global reference point. It’s disappearing faster than expected — a warning sign for communities downstream."

(I'm a believer.  Last week I went up to Mt. Hood where I expected to see the glacier at Timberline Lodge, the "Magic Mile", elevation 6000 feet, the one I first hiked when I was ten years old and it wannit there, it had retracted to 9,000 feet)]]> <![CDATA[Dark matter vs. MOND]]> https://atheistforums.org/thread-65279.html Sat, 12 Aug 2023 14:16:18 +0000 LinuxGal]]> https://atheistforums.org/thread-65279.html
But the best evidence for dark matter comes from the first 370,000 years of time when large regions of space rung like a very large, very low frequency bell. Waves of normal matter were damped by photons carrying energy away, but the waves of dark matter were not damped, because they do not interact with photons.  And these two kinds of waves interfered with each other gravitationally.  This tale is told by the power spectrum of the Cosmic Microwave Background radiation.

So when you see an article claiming that dark matter does not exist, and the data can be explained by some alteration to the theory of gravitation (sometimes called MOND, Modified Newtonian Dynamics), and the article only talks about explaining the oldest data, not the best data, you can ignore it.

If their claim takes the metric tensor of General Relativity and adds additional structure in the form of vectors or scalars, that's just another field, which is to say more particles, and they're right back to dark matter again.

[Image: 0060.jpg]]]>
But the best evidence for dark matter comes from the first 370,000 years of time when large regions of space rung like a very large, very low frequency bell. Waves of normal matter were damped by photons carrying energy away, but the waves of dark matter were not damped, because they do not interact with photons.  And these two kinds of waves interfered with each other gravitationally.  This tale is told by the power spectrum of the Cosmic Microwave Background radiation.

So when you see an article claiming that dark matter does not exist, and the data can be explained by some alteration to the theory of gravitation (sometimes called MOND, Modified Newtonian Dynamics), and the article only talks about explaining the oldest data, not the best data, you can ignore it.

If their claim takes the metric tensor of General Relativity and adds additional structure in the form of vectors or scalars, that's just another field, which is to say more particles, and they're right back to dark matter again.

[Image: 0060.jpg]]]> <![CDATA[Commence Operation Vac-U-Suck]]> https://atheistforums.org/thread-65276.html Sat, 12 Aug 2023 00:20:27 +0000 LinuxGal]]> https://atheistforums.org/thread-65276.html

https://www.washingtonpost.com/business/...uum-biden/

The Biden administration is betting big on giant carbon-sucking vacuums as a climate solution, announcing that it will help jump-start two mammoth projects in Texas and Louisiana that will be a global testing ground for the new technology...]]>

https://www.washingtonpost.com/business/...uum-biden/

The Biden administration is betting big on giant carbon-sucking vacuums as a climate solution, announcing that it will help jump-start two mammoth projects in Texas and Louisiana that will be a global testing ground for the new technology...]]> <![CDATA[Earth's Gravity Hole]]> https://atheistforums.org/thread-65237.html Fri, 28 Jul 2023 18:33:11 +0000 Bucky Ball]]> https://atheistforums.org/thread-65237.html They were talking about it on NPR's Science Friday. 
Very cool.  Cool

https://www.forbes.com/sites/simonemelvi...10d271252e]]> They were talking about it on NPR's Science Friday. 
Very cool.  Cool

https://www.forbes.com/sites/simonemelvi...10d271252e]]>