Keith_McClary
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"?? and Space Time"hagopbul said:what book he is reading
One of Penrose' classic works. I'm going to reread this onehagopbul said:spinors and space time
Auto-Didact said:One of Penrose' classic works. I'm going to reread this one
The spinor calculus is by far the most elegant formulation or generalization of calculus IMO, much more beautiful than tensor calculus tbh. It is easily one of my favorite mathematical physics methods to use to take a new look at old physics, at least on the occasion that I am not in the mood for doing messy experimental computer numerics in the modelling and study of dynamical systems.hagopbul said:i am reading undergraduate physics books now , that is more chalenging reached 50% of one and chapter 2 of the other and few more books to read now , hard to site like that to read , that is really hard to do
What kind of rifle do you use?nsaspook said:I might be getting ready for a hunting trip in a major city AKA I Am Legend .
https://www.sfgate.com/living-in-sf/article/Coyotes-are-being-seen-on-the-empty-streets-15159105.php
Coyotes are being seen on the empty streets of San Francisco
Auto-Didact said:What kind of rifle do you use?
Klystron said:Sorry to burst your "I am Legend" dreams but coyotes are indigenous to the San Francisco Bay Area and are frequently around SF proper. I used to visit from a distance a well-behaved coyote family with winter dens in Golden Gate Park during my weekly hikes. Most people think, "Look at the skinny dog!", if noticed at all.

Hmm, sounds more like "12 Monkeys", the future scenes where a male African lion roars over the ruins of a department store?nsaspook said:I actually waiting for the herds of deer on the streets.![]()
Klystron said:Hmm, sounds more like "12 Monkeys", the future scenes where a male African lion roars over the ruins of a department store.
anorlunda said:I searched for "amateur rocky horror" on youtube and I discovered a whole genre of charming videos.
Well. . . .nsaspook said:BLR .308
This morning I saw a report on TV about rats on Bourbon Street in New Orleans. With all the restaurants and bars closed, there’s no food waste in the usual locations out back, so the rats have taken to scurrying around the deserted street, fighting over whatever scraps they can find.nsaspook said:I actually waiting for the herds of deer on the streets.![]()
Shooting is not allowed in my town, so the deer take refuge here during the hunting season.nsaspook said:I actually waiting for the herds of deer on the streets.
PORTLAND, Ore. — In response to COVID-19, gas stations will no longer be required to enforce regulations against self-service, according to a press release from Oregon State Fire Marshal Jim Walker.
Walker said the state would be implementing new rules immediately, such as allowing people to pump their own gas, to ensure the health and safety of gas retailers.
Gosh, that was one of the funniest youtube videos I've seen in a long time!Keith_McClary said:How to Make Bagpipes Out of a Garbage Bag and Recorders

When I got the cold I initially started to watch the news a lot. After a couple of days I clearly noticed that I was getting more anxious. Being bombarded by such gloomy news of lately takes its toll. That's why I started playing Cities Skylines instead, actually.kyphysics said:Although, I am going to force myself soon to have days off where I do zero news watching and just relax with fun stuff.