#entropy
The Most Misunderstood Concept in Physics - Entropy
https://www.youtube.com/watch?v=DxL2HoqLbyA
Entropy is not energy; entropy is how the energy in the universe is distributed. There is a constant amount of energy in the universe, but the way it is distributed is always changing. So entropy is a measure of the randomness/disorder of a system or the energy unavailable to do work.
Stumbled upon the video and got stuck watching it. Interesting stuff, at least the less technical first part of the video. The video gives a good example of the concept through the sun and how the sun's energy distributes on earth.
Ah yes, a better more scholarly explanation:
Entropy is a state function that is often erroneously referred to as the 'state of disorder' of a system. Qualitatively, entropy is simply a measure how much the energy of atoms and molecules become more spread out in a process and can be defined in terms of statistical probabilities of a system or in terms of the other thermodynamic quantities. Entropy is also the subject of the Second and Third laws of thermodynamics, which describe the changes in entropy of the universe with respect to the system and surroundings, and the entropy of substances, respectively.
flushed entropy...
#toilet #entropy #post #compelling #intellectual #esoteric #meme #humanity #spiritual
Is Time Travel Possible? - Scientific American
Time traveling to the near future is easy: you’re doing it right now at a rate of one second per second, and physicists say that rate can change.
Going backward in time gets thorny, though (thornier than getting ripped to shreds inside a black hole). Scientists have come up with a few ways it might be possible, and they have been aware of time travel paradoxes in general relativity for decades.
I ask the same question about this that Hawking did... "If Time travel is possible, where are all the visitors from the future?" Personally, I don't believe it's possible. I do, however, believe that their may be multi-universes where Time and realities may range from very slightly different to our Universe to extremely different. Can we travel to these different realities? Dunno' about that, but it would be interesting; and it would also eliminate Time travel paradoxes because our presence in an alternate universe would not affect our home universe.
Another interesting thing to consider is Entropy, which is the ultimate power in our universe. Without Entropy, we would sense no Time. There would be no time arrow pointing in in any direction. Are there alternate universes where Entropy is not as potent?
We may never know... that's the mystery of existence. While it is amazing that an insignificant chemical reaction started on this rock billions of years ago and led to the appearance of a big brained primate who evolved enough to actually sit and contemplate its own existence; I tend to doubt the big brained monkey will ever solve all the mysteries.
The second law of thermodynamics is among the most sacred in all of science, but it has always rested on 19th century arguments about probability. New arguments trace its true source to the flows of quantum information.
https://www.quantamagazine.org/physicists-trace-the-rise-in-entropy-to-quantum-information-20220526/
If a dead planet orbits a black dwarf whilst tidally locked in an utterly dark Universe, does time exist?
Is the observer necessary?
See also:
- "The New Thermodynamic Understanding of Clocks" https://www.quantamagazine.org/the-new-science-of-clocks-prompts-questions-about-the-nature-of-time-20210831/
- https://news.ycombinator.com/item?id=28412135
#Time #Entropy #Clocks #ThoughtExperiments #ArrowOfTime #ArthurEddington #IfATreeFallsInAForest #physics #philosophy
Darwin-Lotka energy law
The Darwin-Lotka energy law is a coinage of ecologist Howard T. Odum. It appears in his book Environment, Power, and Society, possibly elsewhere. In its brief form: the maximization of power for useful purposes is the criterion for natural selection.
Darwin's theory of evolution then becomes a general energy law....
Continued at the dreddit
#entropy #darwin #evolution #lotka #dissipativesystems #howardodum
http://www.reddit.com/r/dredmorbius/comments/2hz2lk/darwinlotka_energy_law/