William Grove. Portrait of Sir William Robert Grove (1811-96), British physicist, electrochemist and inventor. Grove trained as a lawyer but he semi-retired into science because of ill health. In 1839 Grove improved the electrochemical battery; his design used zinc and platinum. In 1842 he devised the first fuel cell or 'gas battery'. It consisted of two platinum strips half-immersed in sulphuric acid, one projecting into hydrogen, the other into oxygen. A current flowed when the strips were connected by wire. In 1845 he invented the first electric filament lamp. In 1846 he showed that water is dissociated into hydrogen and oxygen when passed over hot platinum.

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.