That's an illusion created by the way it is being held and the rounded edges of the bottom of the glass. It's just our brain interpreting the optical information in the wrong way. As you can see in the other picture, the bottom is not actually convex.

[–] over_clox@lemmy.world -5 points 12 hours ago

I'm just gonna drop this link here, because I actually have experience refurbishing Mason jar seals and mechanics..

https://youtube.com/watch?v=YFn_ed6vRwM

[–] bizzle@lemmy.world 5 points 13 hours ago (1 children)

So you think that I went through the trouble of having a slop machine add my own hand holding my own jar to a picture of my own kitchen, and it even nailed the stuffed penguin on top of my pantry cabinet? And the only tell is that you think the bottom of my jar is too round?

[+] over_clox@lemmy.world -10 points 13 hours ago (3 children)

Ight homie, what the fuck is that molten Star Wars looking character reflected from the jar?

That's damn sure not you or a camera..

I'm not AI stupid.

[–] Chozo@fedia.io 8 points 9 hours ago

I'm not AI stupid.

So just the regular kind of stupid?

[–] ShankShill@sh.itjust.works 10 points 13 hours ago

I don't know if anyone has ever told you this, but it's okay to make a mistake.

[–] bizzle@lemmy.world 5 points 13 hours ago (1 children)

Do me a favor my guy, go look at your reflection in a ball jar. You'll see that the words are raised a little bit off the surface of the jar. This thicker glass has the peculiar ability to sort of bend the light as it passes through the jar, I think the sciencers call it "refraction", which ultimately has the effect of distorting reflections as seen through it.

Also I've had enough feedback on my appearance, Jesus Christ I'm a lemmy mod did you expect me to look like GigaChad?

[+] over_clox@lemmy.world -9 points 13 hours ago (1 children)

Yes I'm aware of all that, we used to collect glassware all the way back to the late 1800s, so I've seen my share of original Coca Cola bottles, Listerine bottles, and a plenty of Mason jars used for pickles and jelly...

None of them were ever round bottom.

[–] bizzle@lemmy.world 6 points 13 hours ago (1 children)

It's not round bottom. It's flat. Well, slightly concave. Check this out, this time it's an art term called "perspective", take that same ball jar from our last exercise and tilt it toward you just a little bit. Ever see a picture of a guy pinching the moon? It's the same sort of thing, albeit a little bit more dramatic. He's not really pinching the moon, it's really far away and super big, that would be impossible. It just "looks like" he is because he's close and the moon is really far away. What you're really seeing is the curve where the squarish sides become the circular bottom, the flat part is being obscured by the rest of the jar and the opaque liquid inside of it.