atom necklace 3D | gold vermeil pp_protein Collagen is built from three

Collagen is built from three polypeptide chains wound into a left-handed helix that then twists into a right-handed superhelix

Quietly molecular

The B-DNA form is the most common conformation under physiological conditions

The first time the trefoil registers as something other than a warning sign is usually around the start of residency or radiation safety work

The thyroid gland in its anatomical butterfly shape: two lateral lobes connected by a central isthmus

atom necklace 3D | gold vermeil pp_protein Collagen is built from threeatom necklace 3D 18k gold vermeil The atom is the universal symbol of science itself. The first thing children draw when asked to picture matter, the icon on every chemistry textbook spine, the model that turned matter from mystery into a working system. The structure that the rest of physics has to fit on top of. The Science Behind the Atom The Bohr model, with electrons in defined orbits around a dense nucleus, was published by Niels Bohr in 1913.