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Calculate the number 2223

NUMBERMANIA: Calculate the number 2223 using numbers [4, 2, 7, 7, 94, 790] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 1

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Mike Birbiglia: Crying Over a Book

I was on the subway the other day, and the guy next to me was crying over a book. He was actually crying. So, I leaned over -- I go, 'You don't know how to read, either?'

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US photo studio

In 1840, the world's first commercial photography studio was opened in New York City by John Johnson and Alexander S. Wolcott. On 6 Oct 1839, Johnson had taken to Wolcott's residence a full description of Daguerre's discovery. That afternoon they worked to produce a camera and plates. The same day, they exposed and processed their first Daguerreotypes. Johnson later wrote that they ended the day "little dreaming or knowing into what a labyrinth such a beginning was hastening us." Over the next few months, they experimented in various aspects of the construction of the camera, lighting, and using persons as subjects. By 8 May 1840, Wolcott had patented a camera using a mirror reflector to correct the reversed image from the usual single lens.

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