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Everything posted by swansont
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Why is it so hard to explain time? (What is time?)
swansont replied to chron44's topic in Classical Physics
I don’t know what “time is applicable on energy” means Energy is a property, not a thing -
Why is it so hard to explain time? (What is time?)
swansont replied to chron44's topic in Classical Physics
I’m not sure what the connection is to the point under discussion A photon is not “pure energy” (it has linear momentum and spin) -
Why is it so hard to explain time? (What is time?)
swansont replied to chron44's topic in Classical Physics
time doesn’t pass without changes in matter? No. Definitions or descriptions generally don’t. You have to study to gain understanding of physics -
Guided evolution (split from Evolution not limited to life on earth?)
swansont replied to Luc Turpin's topic in Speculations
What you think doesn’t matter much. This is science, so it’s what you can demonstrate. Science is a shared endeavor; there are no “personal truths” -
Do you have any examples of this? Where it was the logic, and not a faulty premise, that is the problem?
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The Mind | Humanity's Pivotal to SPACE-TIME
swansont replied to ttelect's topic in General Philosophy
And technically this is off-topic, a violation of rule 2.5. “Posts should be relevant to the discussion at hand” Oh, please. Being obtuse isn’t inherently a rules violation, but one should still avoid it. -
Why is it so hard to explain time? (What is time?)
swansont replied to chron44's topic in Classical Physics
Relativity affects time; it’s not an effect on any mechanism of a clock, which would be accounted for separately. e.g. a pendulum clock ticks at a different rate if you change g, but that is not an effect of relativity. You would have to properly calibrate the clock. -
Why is it so hard to explain time? (What is time?)
swansont replied to chron44's topic in Classical Physics
Probably. A clock going faster on the moon would depend on the gravitational and kinematic time dilation involved. Clocks in some orbits run slower (e.g. on the ISS), and some run faster (e.g. GPS satellites). One would have to run through the calculations. No. Decay would be subject to the same time dilation as any other clock. If clocks on the moon run fast, decays run fast by the same factor. The rate of time passage differs. The concept of time is no different; one has already acknowledged that time is relative to one’s frame of reference and gravitational potential -
Materialistic Thought Experiment
swansont replied to ourlivinguniverse's topic in General Philosophy
If it’s a response, it’s not spontaneous. The behavior is induced. Saying “it can be explained” is easy. Coming up with a working model is what’s needed. -
hijack from Was Nietzsche talking about the 2nd coming of Jesus?
swansont replied to Oobermensch's topic in Trash Can
The consensus is that you’re the troll living under it. -
No. Science makes models of the behavior of nature.Physics, especially, has elements that it admits up front are not supposed to be “truth” i.e. they don’t physically exist. There’s no way to confirm that these are the “truth” since the only way to test them is with observation/experiment. I don’t think this is true. A display of aggression and the resulting actions counts as communication. Birds do this all the time. ___ Do you have any concrete examples if Dao coming up with any scientific insights?
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Why is it so hard to explain time? (What is time?)
swansont replied to chron44's topic in Classical Physics
One definition is that time is what is measured by a clock. From a measurement standpoint, time is the phase of an oscillation. The time derivative of the phase gives you the frequency (w = dp/dt) thus you can get the phase by integrating the frequency. i.e. you count the oscillations. -
Heat is energy transfer, owing to a temperature difference. It is not particles moving up and down. If that were the case, why would energy be transferred between objects sitting next to each other, especially if they are not in contact? The motion of particles owing to the thermal content can have a frequency - the vibration of atoms in a solid, for example - but the frequencies of all the atoms are not the same, nor are they constant. In an ideal gas the motion is random, and the speeds follow a distribution. Pretty far from being a SHO. Kelvin is used for temperature. It’s not an energy. As the link from sethoflagos points out, kT has units of energy
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Why is it so hard to explain time? (What is time?)
swansont replied to chron44's topic in Classical Physics
Things people object to with regard to time often apply to length as well, but nobody seems to complain about that; probably because different sensing is used (per your point 2) But the nature of time is metaphysics, not physics -
Much like this statement, logic can be proper but based on a false premise. The conclusion is valid, but also incorrect. Not at all. First of all, saying that observation must be included is not emphasizing it, and that makes no statement about logic’s reliability. It says that logic is a necessary but insufficient component in science. Saying observation plays no role just shows ignorance about science. There are a number of self-consistent propositions that don’t speak to reality. Of course, one needs observation to be able to know this. You’ve provided empirical evidence that your Dao is flawed.
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Guided evolution (split from Evolution not limited to life on earth?)
swansont replied to Luc Turpin's topic in Speculations
There has to an option for more than one response. A block of iron responds to a rise in temperature by expanding, or to outside pressure by shrinking, but a block of iron is not intelligent. -
How can a big bang expand to an infinite size?
swansont replied to Airbrush's topic in Astronomy and Cosmology
Time and energy being Fourier conjugates doesn’t come from relativity, and it’s a leap to say that this means something about the existence of spacetime and energy-momentum. Anyway, just because someone claims something does not make it true. -
! Moderator Note Discussion on defeating quantum decryption has been split https://www.scienceforums.net/topic/133223-cryptography-in-the-age-of-quantum-computers-split-from-why-does-a-quantum-computer-render-rsa-useless/
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How can a big bang expand to an infinite size?
swansont replied to Airbrush's topic in Astronomy and Cosmology
Some guy on substack, where others disagree, is probably not to be taken as authoritative. But i’d like Airbrush to answer. -
How can a big bang expand to an infinite size?
swansont replied to Airbrush's topic in Astronomy and Cosmology
Where did you find it? Is it a credible source? -
The Deterministic Ring Theory of Particles
swansont replied to Spring Theory's topic in Speculations
What dipole is associated with an electron and how is this relevant? Is there any experimental evidence that the electron has a radius given by the classical radius? A hand-wave is not a mechanism -
Guided evolution (split from Evolution not limited to life on earth?)
swansont replied to Luc Turpin's topic in Speculations
Not all organisms require molecular oxygen. That’s only one evolutionary “strategy” but only humans and possibly a few other species follow it, with regard to human-like intelligence. (if you want to cast a wider net than that you really need to provide a definition of intelligence)