Dirac
esiegel | July 17, 2013"These neutrino observations are so exciting and significant that I think we're about to see the birth of an entirely new branch of astronomy: neutrino astronomy." -John Bahcall
You've been around here long enough to know about the Big Bang. The vast majority of galaxies are speeding away from us, but more than that, the farther away they are from us, the faster they appear to be receding.
Image credit: ESA/Hubble, NASA and H. Ebeling.
But it's more than that; when you look at a distant galaxy, because the speed of light is finite, you're actually looking at it in the distant past. Since…
drorzel | October 11, 2010SteelyKid, like most toddlers, knows a few songs, and likes to sing them over and over. Her repertoire is limited to "ABCDEFG" (the alphabet song, but that's how she requests it), "Twinkle, Twinkle," "Some man" ("This Old Man," which I only figured out this weekend), and "Round and Round" ("The Wheels on the Bus"). I get a little bored with the repetition, and so tend to make up my own verses, which get sideways looks from her, followed by telling Kate "Daddy's silly!"
I've been posting a lot of these on Twitter over the past several days (@orzelc), but for posterity, a few physics-related…
drorzel | July 7, 2010Over in yesterday's communications skills post commenter Paul raises a question about priorities:
I wonder to what extent good writers, public speakers and communicators are being promoted in science in place of good thinkers - people who can challenge prevailing dogma, invent promising novel approaches to old problems, and who have the intuition needed for deducing correct theories from just a few observations.
I think of this as the "Weinstein Perelman Theory" because Eric Weinstein on Twitter has been pushing something similar with respect to Grisha Perelman turning down major math…