![](http://www.alamy.com/thumbs/6/3720243E-EFD9-4964-8001-E907A459FE5E/T5T40G.jpg)
A composition of positive semi-quantum units identifies the tetrahedron as a single quantum. Up Tetrahedra shown in the image is the direction of the
A composition of positive semi-quantum units identifies the tetrahedron as a single quantum. Up Tetrahedra shown in the image is the direction of the positive axes, vintage line drawing or engraving illustration.
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Photo credit: © Patrick Guenette / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: art, axes, black, composition, direction, drawing, engraved, engraving, identifies, illustration, line, picture, positive, quantum, shown, tetrahedra, tetrahedron, vector, vectors, vintage, white