Tagged “physics”

Values for figuring out not from a frequency spectrum

why are they yin-yangs

cool new thing to worry about this week

probably not. fun idea though

very very very very big things

These are like something out of a game

everything is complicated.

“There are two ways of doing calculations in theoretical physics”, he said. “One way, and this is the way I prefer, is to have a clear physical picture of the process that you are calculating. The other way is to have a precise and self-consistent mathematical formalism. You have neither.”

on the unexpected side effects of new technologies.

From hn

Twitter thread on the design of the iPhone 7 lens.

in the past 5 years or so, advancements in phone cameras have come mostly in better sensors, far better image processing, and adding more cameras

And the post itself

The physics and background of curling. Some fascinating bits in there. I thought it was just about pushing a stone across some ice.

Pretty damn hard to make things that last

Except the batteries on that rover are long dead. Many, if not all, of the plastic and paper insulators exposed to vacuum are now brittle and broken. All labels or painted surfaces are likely bleached white. Differential expansion during lunar daylight cycles has likely snapped a few things here and there too. Fifty years of exposure to static electric charges on the moon has put lunar dust in all sorts of places it doesn't belong.

some very beautiful math drawings

tldr: exposure time is too short, so the stars are very faint

A walk through how fast different types of train can go, and why. Great balance of history and physics, detailed but without too much assumed knowledge.