Louis Albert Necker (April 10, 1786 – November 20, 1861) was a Swiss crystallographer and geographer.
Necker cube on the left, impossible cube on the right.
He is best remembered for devising the optical illusion now known as the Necker cube. He was a keen mountaineer and spent the latter half of his life in Scotland, and was buried in Portree.
- ^ Forbes J D,1863. Biographical account of Professor Louis Albert Necker, of Geneva, Honorary Member of the Royal Society of Edinburgh. Proc Royal Soc Edinburgh, 5: 53-76.
- ^ Wade N J, Campbell R N, Ross H E, Lingelbach B, 2010. Necker in Scotch perspective.' 'Perception, 39: 1-4.
- ^ Mitchell J R, 2002. On the trail of Necker, from Geneva to Portree. West Highland Free Press, 12th July, p. 15.