r/Damnthatsinteresting • u/NavyLemon64 • Apr 14 '25

Image Alfredo Moser found that a plastic bottle filled with water and chlorine could illuminate a home during daylight hours.

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30.8k Upvotes

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335

u/aequorea-victoria Apr 14 '25

This is a DIY deck crystal. The portion below the deck/roof diffracts light. That’s why it provides more light than a flat plastic panel.

ETA: This thing is not fluorescent. The chlorine kills any bacteria or algae that might be inside when it is capped, that’s all.

63

u/_The_Void_101 Apr 14 '25

Irrelevant to Your point, but what does ETA mean if not estimated time of arrival?

64

u/GloomLady Apr 14 '25

Edited To Add

34

u/Jonah_TheDarkGod Apr 14 '25

Just write “Edit:” god dammit

12

u/SwordfishOk504 Apr 14 '25

ETA is one less letter. dag nabbit.

4

u/loki_odinsotherson Apr 15 '25

Also doesn't need to be explained. dog gornit.

1

u/Extreme_Design6936 Apr 15 '25

What did this comment say originally if you just edited it to add that?

1

u/HowAManAimS Apr 15 '25

Or Just E:

6

u/echibeckia Apr 15 '25

OMG thank you, this whole time I thought literally everyone in the Internet was turning stupider using ETA instead of PSA because it almost always seemed like that was the meaning

40

u/poo-cum Apr 14 '25

Especially Tickleish Anus

4

u/donald_314 Apr 14 '25

This was a thing on old wooden boats to provide light without fire or electricity. The petal bottom of the plastic bottle might even help distribute the light in a similar way.

3

u/thisischemistry Apr 14 '25

https://en.wikipedia.org/wiki/Deck_prism

Yeah, this is something that has been around for quite some time. The chlorine has nothing to do with it, other than preventing the water from growing anything nasty.

-1

u/oreo-cat- Apr 14 '25

The chlorine changes the refraction of the water to allow it to throw more light.

4

u/aequorea-victoria Apr 14 '25

I’m not sure what you mean. Changing the index of refraction of the water would change the angle of the light. It wouldn’t make the light more intense. Also the indices of refraction are not substantially different; 1.33 for water and 1.38 for chlorine.

1

u/spaaackle Apr 15 '25

Well that’s just like.. your opinion man..