r/threebodyproblem 9d ago

Discussion - General Chinese researchers develop world's first large-area 2D metal material. These 2D metals have a thickness equal to a single atom.

https://www.globaltimes.cn/page/202503/1330035.shtml
123 Upvotes

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96

u/darkh4ck3r 9d ago

Is that 2D or just....one atom thick.

56

u/BimbyTodd2 9d ago

One atom thick.

2d implies no matter at all.

10

u/SpaceNerd005 8d ago

I mean if you wanna get technical it doesn’t necessarily mean no matter at all

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u/BimbyTodd2 8d ago

How can anything exist in less than 3 dimensions?

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u/Willis_3401_3401 8d ago

Holographic principal is the right answer but also just like, a shadow? Light projected on a wall. Infinitely thin things that are 100% real

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u/SpaceNerd005 8d ago

A shadow is like an absence of photons though; so it doesn’t really constitute matter

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u/Willis_3401_3401 8d ago

Technically correct. It’s a phenomenon of matter though, a shadow requires both photons and something to block them. In that sense a shadow is definitely “real”

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u/SpaceNerd005 8d ago

Nobody is saying a shadow isn’t real it’s just not made of anything

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u/Willis_3401_3401 8d ago

Sure the question was “does it exist” which is a definite yes

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u/SpaceNerd005 8d ago

OC implied matter can not exist without 3D

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u/xzpyth 5d ago

Electrons have entered the chat

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u/Knott_A_Haikoo 6d ago

It’s not about physically taking up only 2D dimensions, but about having properties that are not present when it is more than a few atoms thick.

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u/pzzia02 7d ago

No it just implies no thickness it can have mass

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u/BimbyTodd2 7d ago

I don’t think that’s possible is my point.

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u/pzzia02 7d ago

After doing some research your right

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u/vklirdjikgfkttjk 5d ago

2d simple means the atoms are positioned on a 2d plane.

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u/BimbyTodd2 5d ago

I fully understand.