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Calculate the number 1489

NUMBERMANIA: Calculate the number 1489 using numbers [9, 3, 8, 5, 51, 835] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 1

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Jokes to celebrate Weed Appreciation Day

Today is National Weed Appreciation Day in USA! Appreciate your Weed!

Why did the dandelion become a motivational speaker?
Because it wanted to teach everyone how to turn their weeds into wishes!

Why was the clover invited to the garden party?
Because it was a popu-lawn guest!

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Georg Christoph Lichtenberg

Born 1 Jul 1742; died 24 Feb 1799 at age 56. German physicist and satirical writer, best known for his aphorisms and his ridicule of metaphysical and romantic excesses. At Göttingen University, Lichtenberg did research in a wide variety of fields, including geophysics, volcanology, meteorology, chemistry, astronomy, and mathematics. His most important were his investigations into physics. Notably, he constructed a huge electrophorus and, in the course of experimentations, discovered in 1777 the basic principle of modern xerographic copying; the images that he reproduced are still called "Lichtenberg figures." These are radial patterns formed when sharp, pointed conducting bodies at high voltage get near enough to insulators to discharge electrically, or seen on persons struck by lightning.

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