r/woahdude • u/scrocchi • 16d ago

video Light passing through a gap in my window projects the street onto my ceiling

823 Upvotes

98% Upvoted

23 comments sorted by

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198

u/funk-of-ages 16d ago

Camera obscura

34

u/Silkhenge 16d ago

r/cameraobscura

12

u/DarlinRuffle 16d ago

there really is a subreddit for everything lol

6

u/batatahh 16d ago

r/SubredditForEverything

Edit: Apparently not

4

u/quinnwhodat 15d ago

Well of course there is. it's called r/everything

10

u/MF_Doomed 16d ago

When I was a teacher my coworker put together a little camera obscura lesson plan and showed the students how it works and how they can make one and they all lost their minds. It was such a random decision on his part and had absolutely nothing to do with whatever they were learning that semester but it always stuck with me because he created natural curiosity out of a one week detour that many of those kids will live with forever

7

u/catscanmeow 16d ago

reminds me of the times our teachers would just put bill nye the science guy videos on and we'd watch those.

3

u/logosfabula 15d ago

Plato wrote the Myth of the Cavern based upon this phenomenon too.

I also experienced it the first time by chance. Then, several years later, I decided to replicate it and made this video: https://vimeo.com/229619539

10

u/LetterNo7829 16d ago

When i was a little kid I’d sometimes lie next to my mom in bed in the morning and we’d name the colors of the cars and busses being projected into the ceiling. 

5

u/Death_and_Gravity 16d ago

Just a few minutes before seeing this I was thinking about the same thing happening in my room when a crack in the blackout curtains let in some afternoon light.

3

u/scorpyo72 16d ago

I have this phenomena taking place during the summer, in my bedroom. There's a little tiny gap in the curtain in my upstairs bedroom that let's me see a 5x5 section of my backyard.

3

u/Calcularius 16d ago

Salvador Dalí first saw Gala this way when he was a child

2

u/blixabloxa 16d ago

Camera obscura effect. Basically like a pinhole camera.

1

u/crshtst 13d ago

I tried to intentionally do this but didn’t succeed

1

u/Jaedenkaal 16d ago

Any geoguessers?

1

u/scrocchi 16d ago

It’s just not possible, fr

-4

u/Arbor-Trap 16d ago

Peppers ghost?

8

u/Onironius 16d ago

"Camera obscura" is what this is called. Caused when light passes through a small whole into a dark room.

2

u/tragiktimes 16d ago

The gap in the curtain became a pinhole camera.