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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?

Correct answers: 60

The first user who solved this task is Alfa Omega.

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Anthony Jeselnik: Christmas Gifts

This past Christmas, I told my girlfriend for months in advance, Baby, all I want from you this year is an Xbox. Thats it. Beginning and end of list: Xbox. You know what she got me? A homemade frame with a picture of us from our first date together. Which was fine -- because I got her an Xbox.

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Zoopraxiscope

In 1882, the zoopraxiscope, an optical apparatus invented by Eadweard J. Muybridge (1879) to exhibit photographs of moving animals, was shown at the Royal Institution in the presence of the Prince of Wales. Muybridge's great work on the subject was published in 1887-9, and his Animals in Motion in 1899.* The zoopraxiscope projected images from rotating glass disks in rapid succession to give the impression of motion. It functioned as essentially the first movie projector, with a sequence of stop-motion silhouette images hand-painted around the edge of a circular glass disk, which was loaded onto the projector's side in a vertical position. In 1893, he lectured at "Zoopraxigraphical Hall" at the World's Columbian Exposition in Chicago.«[Image: Zoopraxiscope light source with chimney (left), glass disc (bottom alone, and right of centre mounted vertically). A large lens mounted for focussing the light beam stands on the right outside the picture.]

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