Louis Albert Necker

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Louis Albert Necker (April 10, 1786 – November 20, 1861) was a Swiss crystallographer and geographer.[1]

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.[2] He was a keen mountaineer and spent the latter half of his life in Scotland, and was buried in Portree.[3]


  1. ^ 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.
  2. ^ Wade N J, Campbell R N, Ross H E, Lingelbach B, 2010. Necker in Scotch perspective.' 'Perception, 39: 1-4.
  3. ^ Mitchell J R, 2002. On the trail of Necker, from Geneva to Portree. West Highland Free Press, 12th July, p. 15.