Ursa major necklace | silver pp_neuro and the hydrogen bonds that

and the hydrogen bonds that follow from it

The branching sketch from Darwin's 1837 Notebook B

Collagen necklace | silver

Chloroplast necklace | gold vermeil

The Anatomy of the Heart in Section

Ursa major necklace | silver pp_neuro and the hydrogen bonds thatUrsa Major necklace sterling silver Ptolemy catalogued Ursa Major in the second century. The Big Dipper, its seven brightest stars, is the most recognised asterism in the Northern Hemisphere. Mizar and Alcor at the bend in the handle form a naked eye double used for centuries as a test of eyesight, and the two pointer stars in the cup aim straight at Polaris. The Science of Ursa Major Five of the seven Big Dipper stars belong to the Ursa Major Moving