stroboscopic effect

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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

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

Stylish light blue jeans on wooden background, closeup of inset pocket

Why Do Jeans Have That Tiny Pocket?

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

Which Is Correct: Hanukkah or Chanukah?

Panama Canal infographic

Timeline and Map of the Panama Canal

World Data Locator Map: Australia

Is Australia an Island?

stroboscopic effect

physiology

Learn about this topic in these articles:

human perception of movement

In movement perception: Stroboscopic effect
When a rotating electric fan is illuminated by a flashing light source (called a stroboscope) so that a flash arrives whenever a fan blade passes a fixed position, the blades will seem to stand still. This is a useful way of observing fast-moving…
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