Robert Bunsen. Coloured portrait of Robert Wilhelm Bunsen (1811-99), German chemist. He & Kirchoff founded the science of spectroscopy in 1859, and invented the spectroscope for analysing the unique spectrum of light given off by each chemical element. They discovered the elements rubidium & caesium. Bunsen's experiments showed that organic groups act like the simple atoms of inorganic chemicals. In 1834 he discovered that hydrated iron oxide was the antidote to arsenic poison. He invented a photometer, a filter pump, and the zinc-carbon battery. He also popularised the Bunsen Burner which had been invented by Faraday. Engraving by C. Cook.

Photo website with Rights Managed and Royalty Free stock photos, images, illustrations and footage available for download immediately for commercial and editorial uses. Aflo is a leading independent supplier and producer of stock pictures and visual content. Search and find high quality images and video for design, print, web-use and publishing. Buy photos from our extensive collection of model released and property released sports images. Search some of the most beautiful travel and landscape pictures from our own photographers and license from our large collection of content, modern and archive, focusing on Japan. We provide free research. Register for personal account management and for full use of our Stock Photography website and start to download images now.