FactChecker's latest activity
-
FactChecker replied to the thread France to ditch Windows for Linux.This makes it sound more serious than some of its government computers. And as the government goes, so goes a lot of civilian computers... -
FactChecker reacted to .Scott's post in the thread Positive wing wash-in dynamic soaring one side with
Informative.
When last I soared, it was in a Schweizer 2-22 - 3 or 4 decades ago. Sail planes are generally aerodynamically left-right symmetric, so... -
FactChecker replied to the thread Does memory follow classical or quantum methods?.Ok. What real number immediately precedes 2? ;-)
-
FactChecker reacted to 256bits's post in the thread Does memory follow classical or quantum methods? with
Like.
I can recite the real numbers starting from anywheres, forward or backwards. The alphabet also. List of planets from innermost to... -
FactChecker replied to the thread Does memory follow classical or quantum methods?.Good question! And it's not just the sequence that the brain can remember, it can also remember the pace of certain things, like songs...
-
FactChecker reacted to grzz's post in the thread Does memory follow classical or quantum methods? with Like.
In my daily routine, I read several short extracts. The same extracts, every day, every year, so that I can now repeat them by heart. I...
-
FactChecker reacted to Hill's post in the thread Undergrad I don't understand Dedekind cuts with Like.
I don't see, why ^^^^. You could add, e.g., 3. Number 5 splits the set of rationals into two subsets, and this split is unique...
-
FactChecker reacted to Demystifier's post in the thread Undergrad Is Prof. Claus Kiefer's application of Gödel (+ infinity) justified? with Informative.
Yes, the paper is very superficial, at several levels. First, even if the number of degrees of freedom is finite, one still needs...
-
FactChecker reacted to .Scott's post in the thread Warning: Bad actors may already be in store-now-decrypt-later mode with Informative.
A Feb 2026 Google security report states: And while we’re not there yet, malicious actors are not waiting until a Cryptographically...
-
FactChecker reacted to PAllen's post in the thread Undergrad Why is gravity a fictitious force? with Informative.
I should add that there are different versions of the equivalence principle. For something called the strong equivalence principle...
-
You can't, because a black hole is not made of anything you can build something from. A black hole is just spacetime geometry. It's not...
-
FactChecker reacted to Ibix's post in the thread Undergrad Why is gravity a fictitious force? with Like.
No. It is possible to construct theories in which it may differ. For example, ##F=GkMm/r^2##, where ##k## depends on the materials...
-
FactChecker replied to the thread Undergrad Why is gravity a fictitious force?.I personally think that GR's explanation of why ##M_i=M_g## is one of the most intellectually satisfying things in physics.
-
FactChecker replied to the thread Undergrad Why is gravity a fictitious force?.Give yourself time to think about it. GR is a profound change in our thinking.
-
FactChecker replied to the thread Undergrad Why is gravity a fictitious force?.There could have been some reason for ##M_i=M_g## other than GR, but nobody could come up with one. It was a mystery until Einstein...