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Calculate the number 2215

NUMBERMANIA: Calculate the number 2215 using numbers [4, 3, 4, 8, 17, 761] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 15

The first user who solved this task is Djordje Timotijevic.

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Buffalo's Milk

"Mom says that drinking a buffalo's milk makes us smarter."
"She's lying. If it did make one smarter, then the buffalo's calves would be scientists."

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Fox Talbot photographic process

In 1839, Henry Fox Talbot read a paper before the Royal Society, London, to describe his photographic process using solar light, with an exposure time of about 20 minutes: Some Account of the Art of Photogenic Drawing or the Process by which Natural Objects may be made to Delineate Themselves without the Aid of the Artist's Pencil. He had heard that Daguerre of Paris was working on a similar process. To establish his own priority, Fox Talbot had exhibited “such specimens of my process as I had with me in town,”the previous week at a meeting of the Royal Institution, before he had this more detailed paper ready to present.«

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