Nugatory's latest activity

When @geordief wrote that he was still under the misunderstanding that “I think parallel transport relies on these tangent planes [that...

Does that force us to deal with clock synchronization? Start with a source of light signals and a mirror, move the mirror around until...

From: https://en.wikipedia.org/wiki/Tangent_space In the context of physics, the tangent space to a manifold at a point can be viewed...

They aren't "on" the sphere anywhere. There is a mapping from each point on the surface of the sphere to a two-dimensional vector space...

The tangent space at a point is not a plane in the 3D embedding space (although that is a natural way of visualizing it, continuing our...

A cautionary note is needed here I think. High school and introductory physics has been known to be formulated and taught in such a...

I'm not leaving; I've been advised on reading Girardi’s book “Sneaking a look at God’s cards” to clear up my view on QM, and I'm...

You have been victimized by pop-sci misdescriptions. The entire notion of “wave-particle duality” was abandoned as a false start almost...

No, that's something like a one-time pad. There's a single secret that can be used for encryption and decryption. The thing about...

You might want to, as it makes it possible to prove that a message came from you. Say you want to make a public proclamation that is...

Every time he himself turns by an angle x relative to the ground beneath his feet, he also turns the arrow by -x relative to himself, so...

You are starting from the premise that there is such a thing as a "multiverse". Maybe there is, maybe there isn't, but nothing in our...

thank you, yes.

I can't speak for @Nugatory but my understanding of what he said is not that we shouldn't look, but that until we succeed in finding...

By proposing a further explanation. Until this happens there is no explanation, just as a book does not exist until someone writes it.