Template:Selected anniversaries/May 4: Difference between revisions

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File:Isaac Barrow.jpg|link=Isaac Barrow (nonfiction)|1677: Mathematician and theologian [[Isaac Barrow (nonfiction)|Isaac Barrow]] dies. Barrow played an early role in the development of infinitesimal calculus: he was the first to calculate the tangents of the kappa curve.
File:Isaac Barrow.jpg|link=Isaac Barrow (nonfiction)|1677: Mathematician and theologian [[Isaac Barrow (nonfiction)|Isaac Barrow]] dies. Barrow played an early role in the development of infinitesimal calculus: he was the first to calculate the tangents of the kappa curve.


File:Huygens sketches of Death.jpg|1680: Steganographic analysis of sketches by [[Christiaan Huygens (nonfiction)|Huygens]] for a projection of Death taking off his head, an early example of [[Phantasmagoria (nonfiction)|Phantasmagoria]], reveals "several hundred uinits" of unencrypted data.  (The archaic term "uinit" is thought to roughly correspond with a kilobyte.)
File:Huygens sketches of Death.jpg|link=Christiaan Huygens (nonfiction)|1680: Routine steganographic analysis of sketches by [[Christiaan Huygens (nonfiction)|Huygens]] for a projection of Death taking off his head unexpectedly reveals "several hundred uinits" of unencrypted data.  (The archaic term "uinit" is thought to roughly correspond with a kilobyte.) This will later be recognized as an early example of [[Phantasmagoria (nonfiction)|gnomonic phantasmagoria]].


||1726: William Roy born ... Scottish military engineer, surveyor, and antiquarian. He was an innovator who applied new scientific discoveries and newly emerging technologies to the accurate geodetic mapping of Great Britain. Pic: map, plaque.
||1726: William Roy born ... Scottish military engineer, surveyor, and antiquarian. He was an innovator who applied new scientific discoveries and newly emerging technologies to the accurate geodetic mapping of Great Britain. Pic: map, plaque.

Revision as of 06:11, 4 May 2020