Hornbein's latest activity

https://news.harvard.edu/gazette/story/2026/05/deskilling-is-bad-this-is-worse/ Is that really true? Maybe I should log in as Delmar...

The original is still the greatest. There are a great many covers. I like this one, though it isn't by John Scofield. Some mystery...

Is forbidden per PF rules.

The contrapositive is, if √𝑎 is rational then 𝑎 is rational Easily proved. There is no condition that 𝑎 is irrational so...

The orig Guitar Boogie from 1948. Later copied by Jeff Beck, Tommy Emanuel, The Ventures and many others. I say these don't boogie...

Senri Kawaguchi at age 15 possibly already the best bebop drummer in history. I love what saxophonist Yukiko Onishi does too but she...

Terence Tao says there are AIs that excel at math. Whom am I to gainsay him?

TIL two things about the geometry of curved surfaces: (1) There are no similar triangles on a curved surface, because making a triangle...

The text is correct. They assume the theorem is false and show this leads to a contradiction of the condition that b is irrational.

The Great Morph has been covered up. If they knew the people might panic.

Unique line drumming. Such an original. John French. For heavy beat drumming I can't get enough of 임영은 (Yeong eun). Catchy tune.

As far as I know, the anecdote of the windshield is associated with Richard Feynman not Oppenheimer.

Erwin, the mistress, and his wife shared a house. It was a harem. William Marston, the creator of Wonder Woman, had a similar arrangement.

I just watched a program (video) on this subject last night. The Amercian Chestnut was apparently very productive was a significant...

You are conflating mathematics and physics. Pure mathematics is not dependent on the size of atoms. That circle you speak of does not...