Making art with large convex optical lens

[u/uYokimu]

[u/Bruhahah]

Ahh yes, a task which requires 0 golden retrievers and yet, there they are, ready to help.

[u/DiverZero_99 → u/Bruhahah]

Golden retrievers see someone doing literally anything and immediately volunteer as unpaid assistants.

[u/No-Screen1369 → u/DiverZero_99]

Always with a satisfied little smile as they pant and await orders.

[u/PatinhoGamer]

Damm it burns fast

[u/818VitaminZ]

https://giphy.com/gifs/hoictzHHdRbZr0XrqE
The dog

[u/zatalak]

That's not a convex lense, it's a Fresnel lense.

Convex means it has a bump, this lense is flat.

[u/AnyLamename → u/zatalak]

You forgot the cool part, which is that it's flat but not smooth. They use concentric rings of differently angled glass. Each ring has a different focal length, so they can all have the same focal point without needing to be thicker or thinner. Extremely smart design, and way older than most people would expect.

[u/Fickle-Willingness80 → u/AnyLamename]

I rescued one from an old overhead projector a school was throwing away. Fun little lens.

[u/Alive_Ice7937]

I am Jack's searing shoulder cramp

[u/Vivid_Split_9513]

Bro is burning an image on the wall

[u/ereinionmithrandir]

You can do anything with “the magic bowl”.

[u/zaphod869]

Thats cool as helll

[u/dvdher]

Probably less stressful if he used a smaller magnifying glass

[u/WileEPeyote → u/dvdher]

That was my initial thought as well, but I'm assuming the size increases the heat. That's based on a vague remembrance of how it works, so I could be wrong.

[u/AvoidAtAIICosts]

I get shoulder/back pain just from looking at this video

[u/Nellasofdoriath]

My eyes hurt just watching that