A perfect October day. Well, one of them. There are two kinds. Bright sun pouring through the golden leaves, residual warmth, a bit of a breeze poking around the leaves to make a bony rustle in the gutters. And then there's today: gloomy, damp, enough leaves on the branches to make you think Fall still has some cards to play, but enough bare limbs to remind you that Halloween is nigh. It rained. That's the best news. Not enough, but we'll take it. So then:
SCIENCE! The science blog "It's Okay To Be Smart" asks a good question: Did you know that the cover of Unknown Pleasures is the readout of the first observed pulsar, a rapidly rotating and electromagnetic star?
Uhhh... yeah? We all did. I remember standing around the counter at Music City down on Hennepin in '79, arguing whether it was a pulsar or a quasar, and Bill - he was the older guy who used to roadie for Heep before he threw out his back; one of those self-taught guys who knew a little about everything - said there was something about the waveform that looked a bit off. Not a quasar; it wouldn't have that particular spike on the fourteeth line. Possibly a black hole, he said - you'd get that spike if a massive object was rotating around the black hole at superfast speeds.
"But wouldn't it be pulled into the black hole's gravitational well?" I said. "Not necessarily," Bill said, pausing to put the new album from Magazine on the turntable. "If modern theories are correct, it could be a massive black hole itself, and the two would revolve in tandem for millions of years before fusing. You'd get the same regular signal." I said I didn't think so. Surely gravitational lensing would distort it.
Bill just gave me that look. Please. We're talking radiation here, not light.
We chewed that one over for a while, trying to figure out why the picture was used to illustrate the cover of a band that took its name from a Nazi prostitute squad. Ah, it just seems like yesterday.
Actually, no. Made it all up. More here. Really, it's a pulsar.
MISC So: