integral necklace | gold vermeil chain The domestic cat (Felis catus)

The domestic cat (Felis catus) descends from the Near Eastern wildcat (Felis silvestris lybica)

binds nuclear thyroid hormone receptors (TRalpha and TRbeta)

Macrophage necklace | sterling silver

DNA ring | silver

integral necklace | gold vermeil chain The domestic cat (Felis catus)Integral necklace 18K gold vermeil The gold version of the symbol that runs through most of physics and engineering, in 18K gold vermeil at 32 mm. The integral is the second half of calculus, the operation that builds up a total from infinitesimal pieces. Most often given as a milestone gift to a mathematician or physicist whose career has been spent summing them. The Science Behind the Integral Calculus was developed independently by Isaac Newton and