Calloo! Callay!

My copy of Quantum Mechanics and Path Integrals by Feynman and Hibbs just arrived! If, say, David Griffiths’ textbook epitomizes the ordinary “vernacular” treatment of quantum mechanics, QMaPI is a classic unorthodox approach. Intended for students who already have a bit of background in the subject, it builds up the Lagrangian alternative to the Hamiltonian method, a highly useful idea when one goes on to study field theory, string theory or advanced statistical physics.

For years, this book was only available in beat-up old library copies and illegal DJVU files from Lithuania, but now, Dover has brought forth a new edition. I’m not certain on this, but it appears as if the book was so heavily pre-ordered that sold out of it the day it became available for purchase.

EDIT TO ADD: One erratum — on p. 364, Thorber should be Thornber.

Because the World Needs Nightmares

You know what the Scientifick Blogohedron needs more of? Well, besides introductions to basic subjects, so that we can be more than chatterbots reacting to whatever news story incenses us the most?

Gosh, you people are demanding.

No, I’m talking about nightmare fuel!

And as only children’s television can deliver. You remember Square One TV, right? It came on PBS in the afternoons, after Reading Rainbow and before Where in the World is Carmen Sandiego?. Like every other aspect of my generation’s formative years, it can be relived via the video tubes. Our lives have already been uploaded: the Singularity came and went, and we were all too busy arguing to notice.

Looking back, Reimy the Estimator Girl was fairly cute, and the “Angle Dance” is somewhat frightening in that in-1983-this-was-the-future way, but one bit of sheer irrational terror stands out. I refer, of course, to the mask which Reg E. Cathey wears in the title role of “Archimedes”:


A mathematician and scientist
Born in 287 BC
He lived in the city of Syracuse
On the island of Sicily

He said he could move the world
If he only had a place to stand
A fulcrum and a lever long
And the strength of an average man

He solved the problems of his days
Using math in amazing ways
His great work lives on today
Continue reading Because the World Needs Nightmares

Colony Collapse Disorder

Bug Girl takes on a recent paper which claimed to find evidence that cell phones have it in for beehives. The punchline:

This paper (which for a student research paper would be questionable) should not have been in a journal. It definitely should not have postulated a connection to Colony Collapse Disorder.
And it should never have made the levels of press exposure that it did.

Read the rest at her blag.