Saffron comes from the three stigmas of the crocus sativus flower. These stigmas are delicately removed from the flower and set out to dry. Although the stigmas are red in color, once ground and ...

The results are described in the paper, "Terrestrial Photosynthesis Inferred from Plant Carbonyl Sulfide Uptake." Researchers developed an integrated model that traces the movement of the chemical ...

The word alchemy derives from the old name for ancient Egypt. A 19th-century illustration of the Muslim alchemist Geber (Jabir Ibn Hayyan) teaching chemistry at the school of Edessa, Greece ...