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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 is the most basic thing? [on hold]

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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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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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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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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1answer
106 views

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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174 views

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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1answer
67 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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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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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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1answer
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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. ...
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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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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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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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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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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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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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1answer
141 views

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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103 views

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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313 views

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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1answer
159 views

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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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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If we aren't approaching the final theory, does it mean there's an infinite number of natural laws?

A lot say that with every next step we make in science comes always a set of new questions. I think this means there's an infinite number of questions we can ask about the natural laws. And that means ...
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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 ...
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242 views

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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130 views

Is a sound made? [closed]

"If a tree falls in the forest with no one around does it make a sound?" Seems the answer is no. It creates a wave, but with no ear to receive it and no brain to interpret it, it can not be sound. It ...
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Is the reasoning behind this proof that a unified scientific theory of everything in physics is impossible correct?

I wrote this originally as a response to another question posed on Quora as to whether or not but I was wondering if someone could reexamine this and find any possible possible gaps in logic or ...
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138 views

Is free will fundamental property of everything? [closed]

Photon has a probability distribution of where it may appear if measured. Seems like photon itself chooses where to appear.
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What is the difference between random event and indeterministic event [duplicate]

I can't recognise difference between random event and nondeterminic event I understand like that random events have outcome from fixed sample space but result of experiment is unpredicted So it is ...
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195 views

Is entropy a circular reasoning concept?

After reviewing several texts about the second law of thermodynamics and the concept of entropy, from a systemic point of view, it seems to me that entropy is only a circular reasoning concept. ...
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1answer
535 views

What is the difference between a scientific theory and a model?

What is the difference between a scientific theory and a model? Can someone explain the ideas with the help of a theory in physics and a model of physics?
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1answer
119 views

Unphysical terms appearing in mathematics applied to physics

Sometimes in physics, the mathematics leads to "un-physical solutions or terms", that are readily tossed by the physicist. For example, when deriving absorption and emission rates for via quantized ...
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Time as a physical dimension

What is the intuition behind time being a physical dimension? I read the phrase "in cosmology terms, far away means long ago" somewhere and I got to thinking what if time is an emergent property of ...
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Are Theists and physicists talking about an empty universe or no universe at all?

When they talk about the beginning of the universe, are Theists and physicists talking about an empty universe or no universe at all? It is fairly straightforward to imagine an empty Universe - an ...
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1answer
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Is there a better answer to this argument claiming the impossibility of time extending infinitely into the past?

My friend claimed that time cannot extend infinitely into the past. He explained: "If an event A will happen in 10 years, when do you expect it to happen? In 10 years. But if event A (such as the ...
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4answers
184 views

How can I make my friend who likes IT and physics interested in philosophy? [closed]

In Iran, the government and the people don't pay much attention to humanities. There is a sense among most parents that only Engineering and Medicine are important. That view is much worse when it ...
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449 views

What is the basis for attributing discontinuity to space-time?

Speaking of the discrete orbits of electrons, Bertrand Russell asks the following: "Do we know that, between one orbit and the next, other orbits are geometrically possible? Einstein has led us ...
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Aristotle's Physics: Why do objects strike the ground harder when dropped from higher?

It's my understanding that Aristotle believed 1) that gravity is a constant force toward the center of the earth, and 2) forces cause objects to move but not accelerate. It seems to me if those are ...
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300 views

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 (...