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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264 views

What documented justification is there for using physics to describe the nature of reality?

One of the earmarks of empirical/materialistic research and documentation is its insistence on rejecting and dismissing any subject matter that it deems irrelevant. This has always appeared to me just ...
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117 views

What is the difference between world and universe?

I encounter the terms "world" and "universe" in various types of philosophy. I haven't paid close attention, but it seems "world" is used more phenomenologically and ...
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251 views

What does Aristotle mean by “the whole” and “sphere of the whole” in Physics Book IV?

In discussing time, Aristotle frequently mentions "the whole" and "the sphere itself." I have the intuition that it is related to his physical cosmology, but fail to see anything ...
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103 views

Does Whitehead's physics include atoms?

I know that one of the major points of Whitehead is to criticize the atomistic theory of nature and replace it with events. But can an atom exist as part of an event? What role does electron, protons, ...
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2answers
318 views

Determinism and Freewill [duplicate]

Is there a definitive answer to the problem of free will as follows: How can free Will exist while physics laws tell us (as well as causality) that every state at any given time is the result of the ...
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2answers
405 views

How is spacetime as a construct defined by philosophers? [closed]

Is spacetime a construct? If spacetime is a construct, is space taken individually a construct, and is time taken individually also a construct, and time and space combined a construct? Does the ...
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209 views

Is probability in classical physics always bayesian?

I am wondering how probability is intended in classical physics. I have read a number of articles where it is said that probability in classical physics is generally intended in subjectivist terms as ...
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1answer
240 views

What fallacy is this? Ignoring rate of change

What is this fallacy? "I threw a ball onto the roof. Which way did gravity pull it? Well obviously because the ball started on the ground level and ended up on the roof then gravity must have ...
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195 views

Which fallacy? Explaining something based on a hypothesis

I am studying physics and have often come across the line of reasoning that goes like this: "Phenomenon A is/happens this way because otherwise it would contradict the B principle." Physics ...
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231 views

Is physics or pure math better at explaining reality?

I have been interested in philosophy for a while and I was just curious on what you guys thought about this question. On one hand you have a science that is able to (basically) relate all the bodies ...
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4answers
764 views

“v = 1 m/s”: predicate or relation? Any literature?

This question is partially related to How does "is" work? and What is the difference between the "is" of predication and the "is" of identity?, but more specifically it ...
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2answers
219 views

How does biological evolution work in the block universe/b-theory of time?

The b-theory of time is often described as a film reel where the whole reel exists, but we can only view one frame at a time. The problem I have with this analogy is that it starts to feel too ...
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151 views

What are the specific characteristics of the theories about physics during ancient Greece that distinguish them from contemporary physics?

What are the specific characteristics of the theories about physics during ancient Greece that distinguish them from contemporary physics? By that, I mean what are the theories during that time ...
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239 views

Is this a good reasoning? That 3D Universe is shadow of 4D Universe [closed]

It may sound crazy but, in this 3D world there is nothing 2D, other then our shadow. Is it good to say that the shadow of 3D object is 2D, then shadow of 2D object would be 1D. Hence this 3D universe ...
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1answer
185 views

Relationism, Substantivalism, and Simultaneity?

I've been breaking my head open lately over special relativity and its conception of spacetime's dynamical as well as kinematical features. One thing that has stuck in my head is that of whether the ...
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2answers
164 views

Why is it not necessary to to tell what force is?

In his book, "Science and Hypothesis" on page no. 98, Henri Poincaré write on subject of defining force: [.....When we say force is the cause of motion, we are talking metaphysics; and this ...
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212 views

Physical correlates of consciousness

The term neural correlates of consciousness is well established (~ 277,000 Google results, one Wikipedia article), but I'd like to ask for more general physical correlates of consciousness (~ 6,000 ...
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332 views

How is the causality of mind consistent with the law of conservation of energy?

How is the causality of mind consistent with the law of conservation of energy? Intuitively, the mind can influence the physical world (with causality), and it is hard to see how such causality does ...
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227 views

I could prove: Copenhagen QM is NOT causal. Is my argument acceptable?

A quantum system consists of some states. It is in all of the states but beCAUSE of the act of the measurement, the wavefunction collapses into one state. I am really confused because I can repeat the ...
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104 views

According to physics, do our visual thoughts (possibly others) appear to be not real because they occupy physically inaccessible higher dimensions?

I wanted to know how physics explain the mind.I will first share my thoughts on whether thoughts are real or that the mind is real (Mind is the arena where we have thoughts). I think we usually ...
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36 views

Limit of energy? [closed]

What if there is any real limit of energy that can ever be accumulated in the gravitational field? Described as: E(max) = m(max) * c^2 So... If some black hole reached that limit, (I would expect) ...
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1answer
140 views

What kind of philosophy of the foundations of physics can there be?

I'm currently trying to read into topos foundations for theories of physics and I wonder if we are really able to give a philosophical foundation for what a possible future theory of physics should ...
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4answers
566 views

Is it true that we are almost certainly Boltzmann Brains?

I read an article and I got curious about the topic of Boltzmann Brains. I read some more articles and posts about the topic and it seems to me that the arguments are that BBs would outnumber us by ...
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2answers
117 views

What is Robert Nozick alluding to by a “vast generalization” of Feynman’s path integral?

I was reading a book from the philosopher Robert Nozick (Invariances: The Structure of the Objective World), and there was something that confused me. Around page 159 he argues that every logically ...
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3answers
275 views

What are the benefits of three dimensional space? [closed]

In zero dimensional space, differentiation is impossible. It's necessary (as far as we know) for things to be in two different places to distinguish between them. So, as Euclid says, a point is that ...
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75 views

What is the historical relationship between physics and philosophy?

I often hear people say that physics is/was part of philosophy or that philosophy gave birth to physics but I think this isn't correct. Imagine a big country called anonati. After a civil war, ...
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138 views

Does the reversibility of laws of physics prove that causality doesn't exist?

Does the fact that the fundamental laws are symmetric with respect to direction of time show that causation does not exist? Since causality always requires the cause to precede the effect, but laws of ...
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127 views

Did Wheeler's “It from Bit” allow inconsistencies to exist?

Physicist John Wheeler proposed a model of the universe based on "It from Bit" asserting that the world is fundamentally information. I've been told both that Wheeler's It from Bit is compatible with ...
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91 views

What is the meaning of using a mathematical structure to describe physics?

I'm trying to understand the meaning of using a mathematical structure in order to do physics, what does this really mean? My idea is that first we performs experiments on a physical system in order ...
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106 views

Can we measure “braverity” objectively?

By saying "bravery/courage", we implicitly mean a hard task that we wouldn't do it in daily life, and we have to sacrifice something to get it - we are scared. It is, after all, just a cost-benefit ...
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2answers
118 views

Perpetual Division

I recall a story about a philosopher who proposed an idea that everything is essentially perpetually divisible. That is to say, you can divide a whole into two halves and for each half (regarded as ...
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What were Hegel's criticisms of Newton?

I recently read this thread THREAD describing the relationship between Hegel and Newton. Apparently, Hegel misread Newton's principia, and criticized a specific point of science on Newton. This is ...
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126 views

If the universe is flat, how can the Earth be round? [closed]

Just another silly question that may deserve a wise answer.
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168 views

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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733 views

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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2k views

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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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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169 views

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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640 views

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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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 - 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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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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372 views

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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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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431 views

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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301 views

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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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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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. ...