this post was submitted on 06 Nov 2023
469 points (94.2% liked)

memes

10217 readers
1605 users here now

Community rules

1. Be civilNo trolling, bigotry or other insulting / annoying behaviour

2. No politicsThis is non-politics community. For political memes please go to [email protected]

3. No recent repostsCheck for reposts when posting a meme, you can only repost after 1 month

4. No botsNo bots without the express approval of the mods or the admins

5. No Spam/AdsNo advertisements or spam. This is an instance rule and the only way to live.

Sister communities

founded 1 year ago
MODERATORS
[email protected]
[email protected]
[email protected]
469
It's just the most 100 recently saved songs. The fuck. (startrek.website)
submitted 1 year ago by [email protected] to c/[email protected]
93 comments fedilink hide all child comments
 
you are viewing a single comment's thread
view the rest of the comments
[โ€“] [email protected] 1 points 1 year ago (1 children)

Using a camera in a completely dark room is a better source of entropy than one pointed at lava lamps.

Why is that? Naturally occurring or manufacturing-related impurities in the optical chip?

[โ€“] [email protected] 1 points 1 year ago

All digital cameras are imperfect - there is always a bit of noise, but usually it doesn't come through since your scene is bright enough to make small amounts of noise imperceptible. In a completely dark room the camera still tries to get data from the photo sensor, but the noise (created by temperature fluctuations, imperfections in the chip itself and so on) is all you get. You may theoretically be able to predict the noise on short time scales, but it's a chaotic system.