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Calculate the number 1306

NUMBERMANIA: Calculate the number 1306 using numbers [1, 8, 2, 5, 30, 388] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 16

The first user who solved this task is Thinh Ddh.

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What Iran needs now

What Iran needs now is a more modern leader – a mullah lite.

Shappi Khorsandi (June 8 1973-)

Picture: JAY WILLIAMS FOR THE TELEGRAPH

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Carbon paper

In 1806, Englishman Ralph Wedgwood secured the first patent for carbon paper, which he described as an “apparatus for producing duplicates of writings.” In his process, thin paper was saturated with printer's ink, then dried between sheets of blotting paper. His idea for the carbon paper was a byproduct of his inventionof a machine to help blind people write, and the “black paper” was really just a substitute for ink. In its original form, Wedgwood's “Stylographic Writer” employed a metal stylus instead of a quill for writing, with the carbon paper placed between two sheets of paper in order to transfer a copy onto the bottom sheet.

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