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Questions tagged [physics]

Physics is the natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.

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What would a fractal universe tell us about Time?

To begin with let's look at what is known as the coastline paradox. Briefly it goes like this: If you measure the circumference of Britain with a 1km long stick, and then do the same with a 100m long ...
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What's the difference between logical modalities and physical modalities?

I am just wondering what's the difference between the two. I would say that there is something different, but honestly I can't define what it is exactly. What do you think?
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Philosophy - Does Einstein's Block Universe theory prove Nietzsche's Eternal Return theory is true?

If the Past, Present, and Future all exist in exactly the same way, then every single moment would be a ‘Now’ moment for me. it would also mean that me being dead in the future is equally real in the ...
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Why is modern physics still connected to Western notions of time? [closed]

as Rasheedah Phillips says “Afrofuturism uses a completely different construct of time and engages a different notion of time consciousness and notion of the future than does the European brand of ...
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What is the opposite of the reductionist approach?

I am searching for two opposite words in philosophy of science to describe two opposite approaches in physics. To illustrate what I am searching for I will use statistical physics and particle physics ...
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What is the most basic thing? [closed]

I wanted to know that what is the most basic or the basicestest thing that makes up the universe? Just like a wall is made up of bricks and bricks are made up of atoms and atoms are made up of ...
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Are all unobservables in physics very small?

Are all unobservables in physics very small? I think I've read that the interior of the sun is an unobservable, and so entity realists like Ian Hacking have to claim we can't know anything at all ...
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Why are physical laws so simple?

Many of the most general physical laws are very simple, from Einstein's law of General Relativity to Schrodinger's Equation in quantum mechanics. Why aren't are most basic physical laws incredibly ...
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Philosophy - Does the block universe theory of time mean that life will repeat after death?

I have suffered severe anxiety, sadness, regret, and depression since I was 13, I had 2 trapped-feeling panic attacks when I was 13 I am now 17 and fighting off frequent urges to have a trapped-...
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How much philosophy should a physicist know?

I began to read Hawking's recent book 'A Grand Design' some time ago and noticed that he savages philosophy. He says '...philosophy is dead. Philosophy has not kept up with modern developments in ...
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Epicureanism and speed of light

I have heard that Epicurus stated that light has the speed of thought. What did he mean by this? My hypothesis is he intended to say, in a way, that the speed of light is infinite. But then, why was ...
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How would you describe the relationship of science and philosophy of science?

How would you describe the relationship of science and philosophy of science? Is it a worldview that sets a tone to scientific jargon? I mean that statements of eg. physics are under submission of the ...
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Can we be Boltzmann brains? Or, how can we be sure there is no conspiracy about the past?

The way things are traditionally presented about time, there is the present, the past is fixed, and the future is open. The second law of thermodynamics is invoked. But how can we be so sure the past ...
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Where does the sense of self come from?

We human beings experience a sense of identity, an inner personality. I assume Machines and computers do not. Animals also seem to possess consciousness and some sort of sense of self. Where does ...
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Can something be really random?

Before you tag my question as a duplicate I want to make sure you understand it. Earlier I saw a video about Schrödinger's cat that says once we open the box to see if the cat were alive or dead the ...
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Does Alvin Plantinga's solution to the problem of divine action entail a total denial of the applicability of Newtonian physics to the world?

Alvin Plantinga offers at least two major solutions to the problem of divine action; that physical laws of the Newtonian sort are (often implicitly) qualified to apply only to causally closed systems, ...
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Can anything truly be simultaneous?

I was looking at a discussion about simultaneous causation and something that came up was that all physical processes take time. So nothing can truly be simultaneous. And yet, we have philosophers ...
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If time is going to end, then did it have a beginning? How do we know time will end?

Why do most physicists believe time is finite? What proof do we have that time is not infinite and therefore will never end? And how can 'time' actually come into existence if something coming into ...
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Philosophy - Is Nietzsche's Eternal Return theory true?

Is Nietzsche's Eternal Return theory true? I am extremely worried that it is because of the very likely fact that Einstein's Block Universe theory is true, and what renders Einstein's Block Universe ...
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Philosophy - If both the Rebound Universe and Block Universe theories are true would that mean Nietzsche's Eternal Return theory true?

If the Block Universe is true, and if the Rebound Universe is also true where the universe goes from Big Crunch to Big bang then doesn't that mean that the Block Universe is shaped like a circle where ...
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Why is the complex number an integral part of physical reality?

In modern physics, the quantum wave distribution function necessarily uses complex numbers to represent itself. If physics defines the physical reality, then what we are saying by the statement above ...
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Why do physicists increasingly seek to understand more fundamental pieces of matter?

Why do physicists seek to study and explain more fundamental qualities of matter as opposed to stopping at a certain point and testing more predictions of macro-level models? What benefit does the "...
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Does all matter exist forever?

I was reading about non-duality (spirituality / philosophy) that discusses the idea that everything in reality is one, since any matter can become any other matter, (a tree can become a chair and a ...
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Is there a fundamental ontology in Physics? What is the universe fundamentally “made of” according to Physics?

Is there a fundamental ontology in Physics? According to Physics, what are the fundamental "things" (whatever they may be) that in combination define the whole universe, such that they are not ...
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What are the third and fourth ways in which William Charlton says “being” is used in Aristotle?

I'm reading William Charlton's commentary on Aristotle's Physics I and II, and I am having trouble with the following: Aristotle recognizes four main "ways in which a thing might be said" i.e. ...
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What should be first according to Aristotle: the nature of being or the nature of explanation?

I see that in his Metaphysics he starts speaking of the nature of explanation as if he thinks, I think, that it is key to be understood before moving to the investigation about being. But then, in his ...
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One big theory of Everything (TOE) or multiple “domain specific” theories?

It's common to hear that physicists are trying to find a Theory of everything (TOE). We "logically" consider the more elegant / concise theory as true ... because beauty is thruth ... or is it ? What ...
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When Aristotle is speaking of things that are clear to us, is he thinking of entities or formulas?

I'm reading the commentaries of Aristotle's physics book I by William Charlton and he starts this debate in his commentaries. But it was too brief for me to grasp. As I understand, the question is ...
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Aristotle on the impossibility of the indivisibility - Aristotle's physics book I

I'm having trouble with the following part of Aristotle's physics (185b17-185b18): But to proceed: If their One is one as indivisible, nothing will have quantity or quality, and so what exists ...
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Do naturalists think that only microscopic physical things exist?

I was reading an article on time in physics, which is meant to emerge at the macroscopic level. This is interpreted as that it does not really exist. Is that because only microscopic physical things ...
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Is the phenomenom of “subjective consciousness” or “qualia” formally captured by any state-of-the-art Theoretical Model in Physics?

Is the phenomenon of "subjective consciousness" or "qualia" formally captured or defined by any state-of-the-art Theoretical Model in Physics? If so, can you share a brief summary of such ...
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Aristotle notion of action in his physics?

I do not understand the notion of action in the following paragraph (Phys. 199a9–20): As things are in action, so they are in nature; and as they are in nature, so they are in action, so long as ...
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proofreadiing a paper on Descartes. Need help on line “a true physics…”

I'm copy editing a paper on Descartes written by an Italian in French and then translated into English. I need some help with a phrase she uses: "... a true physics..." I have no background in ...
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Domain of free will in OUR physical system

When we speak of "free will" we often imply it to be "a particular sort of capacity of rational agents to choose a course of action from among various alternatives". This capacity is contained by our ...
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Nothing, God & Physical law

Mary-Jane Rubenstein writes in Cosmic Singularities At first blush, Hawking’s and Mlodinow’s “nothing” seems even more of a nothing than the church fathers’ nothing. For whereas Irenaeus’ and ...
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Physics, Theoretical Understanding and the Limits of Human Knowledge/Understanding

During an interview with Discover magazine, Roger Penrose makes the claim that a lot of the most theoretical physics, a la the physical theories that try to account for the discrepancies and ...
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Black hole information paradox implications

What are the philosophical implications of the black hole information paradox? Would the creation of a small super dense residue of the black hole evaporation give rise to a philosophical issue anyway?...
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I am a physically dying human. Will I limit myself to consideration of physics or will I consider that which is extra-physical? [closed]

Humanity has understood the physics of proton bound to neutron orbitted by electron as atom. As a human aware of my impending demise, I determined to consider is death or cessation of mere physical ...
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Being transcendental and contingency of constants of nature

Given an arbitrarily chosen constant of nature (say, the speed of light c), we can confidently say that the fact that it is equal to 299 792 458 meters per second is a contingent fact about our ...
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What would the existence of the multiverse mean for theology?

The multiverse seems to be gaining traction of the scientific community, even becoming the prevalent worldview. It seems some types of the multiverse theory, such as the many-worlds interpretation, ...
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What is less than a bit? [closed]

I mean a bit of information (data). Some say (do not know exactly who) everything on its smallest level consists of information. What does the information consist of?
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Is it theoretically possible for a bottomless pits to exist in a finite universe?

Assuming that our universe is finite, is it still theoretically possible to have a bottomless pit? This all really depends on the definition of bottomless pit. I don't know that I can accurately ...
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Why can social sciences apply hard science concepts to other things than what they apply to?

Why can social sciences apply hard science concepts to other things than what they apply to? E.g. suggesting that social groups can be modeled using thermodynamics: http://www.eoht.info/page/...
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Shouldn't Last Thurdayism be able to be proved wrong by Physics?

From what I understand, Last Thursdayism is the belief that the universe was created last thursday. Supposing Last Thursdayism is true, if you consider going at a really fast speed when Thursday ...
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What is the entropy of the universe at the time of the Big Bang? [closed]

High entropy generally means high disorder; and low entropy low disorder; the two paradigmatic cases that illustrate these two possibilities is a gas, for the first, and a crystal for the second. ...
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Why do philosophical discussions of the teleportation paradox seem to ignore the physics involved?

When I read philosophy treatments of the teleportation paradox and related subjects like swampman, they seem to focus primarily on drawing analogies to various entirely different scenarios (...
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What distinguishes cause from effect when they are simultaneous?

At a high level, distinguishing cause and effect is typically easy enough: the cause comes first. I drop a ball off a roof; therefore, it falls and hits the ground. But on a fundamental level, physics ...
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Is eternalism notion of time consistent with quantum mechanics (all of its interpretations)?

Is it consistent with quantum mechanics to think that:"We live equally in all past, present and future events" which is suggested by Einstein's relativity?
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How do we learn math and science?

I have very little experience in philosophy, so I am not sure if this question is common (I could not find anything on it). This site seemed to be most fitting for the question, but if this question ...