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Calculate the number 9157

NUMBERMANIA: Calculate the number 9157 using numbers [7, 5, 3, 2, 32, 758] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 13

The first user who solved this task is Nílton Corrêa de Sousa.

#brainteasers #math #numbermania

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Music planets sing?

Q: What kind of music do planets sing?

A: Neptunes!

A planetary music joke was posted on Twitter by Holly on August 10, 2012.

A similar joke was posted on Twitter by Bobby Amasha on October 8, 2012:

Q: What kind of music do planets listen to?

A: Neptunes!

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Carl Zeiss

Died 3 Dec 1888 at age 72 (born 11 Sep 1816).German industrialist who gained a worldwide reputation as a manufacturer of fine optical instruments. After qualifying in medicine, he began the manufacture of optical instruments, which he knew would be in increasing demand as science and medicine advanced. He spent seven years in the workshops of various European instrument-makers before he founded an optical factory at Jena (1846). He quickly establishing a reputation for products of the highest quality. Twenty years later he went into partnership with Ernst Abbe (1840-1905), who was his advisor on theoretical advances in optics. Abbe further enhanced the reputation of the company and became its sole owner upon the death of Zeiss. Abbe enhanced the reputation of the company and established invested in the workers.

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