Paul Colby's latest activity
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Paul Colby replied to the thread Graduate How many interpretations of QM do you speak?.While this is true, my understanding is that representation theory yields just a solution of the reps field equations. The corresponding... -
Paul Colby reacted to PeterDonis's post in the thread Graduate How many interpretations of QM do you speak? with
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Yes, but the "interpretation" required here is very minimal: you just need to know the operational meaning of the quantities in the... -
Paul Colby replied to the thread Graduate How many interpretations of QM do you speak?.My fluency hovers somewhere between 0.5 and 0.75 Copenhagen Interpretations. -
Paul Colby replied to the thread Help implementing LQR on rotary inverted Pendulum.Typically people use feedback to solve such problems. This doesn’t require an accurate model of motion. All that’s needed is a... -
Paul Colby replied to the thread Undergrad How do bar detectors work in gravitational wave detectors?.There is a coordinate system, referred to as the TT gauge, that I find makes visualization of bar detectors easier. Think of an isolated... -
Paul Colby replied to the thread Graduate Momentum vs inertia.Also, for Ohms law, current flowing through a resistor dissipates energy in the form of heat. For Newton, force goes into kinetic... -
Paul Colby replied to the thread How do atoms build thoughts and emotions?.This is an excellent question which is why I have the best free will money can buy. -
Paul Colby replied to the thread How do atoms build thoughts and emotions?.In physics, all theories are quantitative and formulated in terms of mathematics. -
Paul Colby reacted to phyzguy's post in the thread How do atoms build thoughts and emotions? with
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Basically, no one knows. This is sometimes called "the hard problem of consciousness". It's fairly easy to understand how the neurons... -
Paul Colby replied to the thread How do atoms build thoughts and emotions?.I was going to say one bond at a time but… -
Paul Colby replied to the thread Undergrad LZ sees one event that is a dark matter candidate.FWIW this AI description matches what I was able to pull from the detector description in the paper. The Xe gives off light if a Xe... -
Paul Colby reacted to DaveC426913's post in the thread Undergrad LZ sees one event that is a dark matter candidate with
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Any chance we could get a 5-year old's understanding of what we're seeing here: My questions - and my updates from browsing, in blue... -
Paul Colby replied to the thread Help implementing LQR on rotary inverted Pendulum.What is the intended behavior of your hardware? For example, is it to balance? Cancel tipping motion? -
Paul Colby replied to the thread Undergrad Was Richard Feynman's explanation of the twin paradox wrong?.The two twins follow two different paths. One twins path proper length is shorter. As setup, the shorter path twin must accelerate to... -
Paul Colby replied to the thread Graduate Best visualization of SO(3).Visualize as a manifold seems to be all you consider. There’s the algebraic aspect of ##SO(3)## as well.