Recent content by PeroK

Do you mean AI, as in artificial intelligence; or, ai, as in the pale-throated sloth? https://en.wikipedia.org/wiki/Pale-throated_sloth

Quantum tunnelling is on a microscopic scale. Not just tunnelling (which you seem to be obsessed by), but QM phenomena are taking place inside a macroscopic object all the time. That does not equate to a macroscopic object itself coherently obeying the laws of molecular physics. A sofa is not...

A human being (and other life) grows by cell division. Your question would be what stops an entire human being spontaneously cloning itself into two? If a cell can divide, why not an entire large animal? The biology of a human being is not the same as the biology of a single cell. A building...

This is, IMO, the most accessible introduction to QM. Even if you don't follow all the maths, it is highly insightful: https://physics.mq.edu.au/~jcresser/Phys304/Handouts/QuantumPhysicsNotes.pdf

https://www.nasa.gov/general/how-will-we-extract-water-on-the-moon-we-asked-a-nasa-technologist-episode-47/ You'd have to take your own teabags, though.

##F = ma## is not the last word in modern physics!

It's a spectacular image, but it's essentially fake. It's not what the crew saw. This raises the question of what is allowable as enhancement or alteration before you have to declare something as "synthetic".

I would say that a black hole is about 4D geometry. There is no global "time" axis. In many ways, you need to free your mind of the simple concepts of classical motion. It might be helpful to realise that a black hole means two different things: 1) The Schwarzschild Black Hole is a...

Plenty of grist for the conspiracy mill!

I agree. Knowledge of this type always has some value. That said, Taylor is a comprehensive and somewhat advanced book. It's a big book to buy just for a few chapters. Instead, you could look for a free pdf from a legitimate source (probably a university professor) on Analytic Mechanics. And...

Following this principle, you could apply the Navier-Stokes equations and replace the molecular physics of water with continuous fluid flow. You can't do this because the continuum model breaks down at some appropriately small scale. Given, therefore, that the continuum model is an...

You have several misconceptions about entanglement. First, entanglement is often a result of conservation laws and any number of particles or subsystems can be entangled. For example, if you know the total energy of a system and you measure the energy of part of the system, then you know the...

You can do the paradox without acceleration. Ultimately, therefore, it is about the difference in paths through spacetime. And not "something funny happens when you accelerate".

Note that we can get a similar paradox by considering a length of elastic material that stretches out until instantaneously it has a certain rest-mass density ##\rho(x)## and a velocity profile ##v(x)##. Nominally, the instantaneous energy of the expanding material is: $$E = \int_0^L...

You can, but perhaps you can't meaningfully have the boundary of the dust cloud moving at ##c##. In one sense you can, because the boundary has zero mass and zero energy. This thread is trying to make sense of the consequences of that.