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Researchers have discovered a new structural variant of carbon called 'penta-graphene' -- a very thin sheet of pure carbon that has a unique structure inspired by a pentagonal pattern of tiles found paving the streets of Cairo.
Most forms of carbon are made of hexagonal building blocks, sometimes interspersed with pentagons. Penta-graphene would be a unique two-dimensional carbon allotrope composed exclusively of pentagons.
"When you take graphene and roll it up, you make what is called a carbon nanotube which can be metallic or semiconducting," Jena said. "Penta-graphene, when you roll it up, will also make a nanotube, but it is always semiconducting."
Read more at: phys.org...
unable to read or write.
"his parents were illiterate"
synonyms: unable to read or write, unlettered, analphabetic, functionally illiterate
"he was no illiterate peasant"
originally posted by: Miccey
Tell us about these limitations...
Educate the illiterate..
Why couldnt this be used as "Heat sheilds",
Imagin thin multilayers of this on a spaceship..
So its "semicunductive"... And?
Btw this came after i posted:
Semconductive, run a charge in specific
lengths and you might get radiation shielding
as well... Worth thinking about, no?