Title text:
I’m trying to buy a gravitational lens for my camera, but I can’t tell if the manufacturers are listing comoving focal length or proper focal length.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3182/
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Narcissian… Also known as a mirror.
Do not drink the liquid mirror!
I repeat. Do. Not. Drink. The liquid mirror!
The Core was possibly the worst movie I’ve ever watched. Seeing that here gave me PTSD.
Ehh, it’s like most of the extinction-event movies of that time. It’s dumb at points, but if everything was realistic, everything would be pretty damn boring. It’s in my top 10 of that genre.
Same, but I don’t think I’ve seen 10 movies in that genre
All I can think are
- Comet in the Moominland (this was pretty scary one)
- The core



