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Images
slope of a curve slope of a line Figure 2: Straight lines (see text). duality The French mathematician René Descartes (1596–1650) demonstrated that the square root of any line segment could be constructed by the simple, but ingenious, addition of a line segment with unit length.
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July, 2006, Launch of Space Shuttle Discovery STS-121. See attached for full caption information.
Will Light-Speed Space Travel Ever Be Possible?
illustration of the walking titanosaurus, Patagotitan mayorum
Titanosaurs: 8 of the World's Biggest Dinosaurs
Candles Burning On Table In Church
What Is the Most Widely Practiced Religion in the World?
Lusitania sinking, illustration from The War of the Nations (New York), December 31, 1919. World War I, WWI. This image is one of three on the page. (See source file for the other two.)
7 of the World’s Deadliest Shipwrecks
King Cobra snake in Malaysia. (reptile)
9 of the World’s Deadliest Snakes
New Zealand. Political/Physical map. Includes locator.
Where Is “Old Zealand”?
Entrants falling and tumbling over while chasing the cheese at the 2016 'Cheese Rolling' held at Cooper's Hill, in the Cotswolds, Brockworth England
7 of the World’s Most Dangerous Festivals

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Photos

slope of a curve
slope of a line
Figure 2: Straight lines (see text).
duality
The French mathematician René Descartes (1596–1650) demonstrated that the square root of any line segment could be constructed by the simple, but ingenious, addition of a line segment with unit length.
See All Images →

Related Topics and References

Topics

Key People

Plücker, Julius
Julius Plücker
German mathematician and physicist