rod

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Introduction References & Edit History Related Topics

Images

photoreceptor; rod and cone

structure of the retina

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Facsimile of one of William Henry Ireland's forgeries, a primitive self-portrait of William Shakespeare(tinted engraving). Published for Samuel Ireland, Norfolk Street, Strand, December 1, 1795. (W.H. Ireland, forgery)

The Time a Law Clerk Successfully Forged a New Shakespeare Play to Impress His Dad

The Battle of Gettysburg, July 1-3, 1863. (Civil War, Pennsylvania)

9 Worst Generals in History

Four year old boy with grandfather and father lighting Hanukkah menorah. Photo taken on: December 21st, 2009

Which Is Correct: Hanukkah or Chanukah?

Coriander leaves, fresh green cilantro on wooden background, herbs

Why Does Cilantro Taste Like Soap to Some People?

Orange basketball on black background and with low key lighting. Homepage 2010, arts and entertainment, history and society

The 10 Greatest Basketball Players of All Time

King Cobra snake in Malaysia. (reptile)

9 of the World’s Deadliest Snakes

Srinivasa Ramanujan, Indian mathematician and autodidact.

6 Interesting Facts about Srinivasa Ramanujan

rod: Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Photos

photoreceptor; rod and cone

structure of the retina

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Topics

scotopsin rhodopsin porphyropsin metarhodopsin prelumirhodopsin lumirhodopsin retina neuroepithelium blind spot macula lutea cone

Key People

George Wald

American biochemist