Calculate the number 306
[1314] Calculate the number 306 - NUMBERMANIA: Calculate the number 306 using numbers [4, 3, 1, 3, 47, 173] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 30 - The first user who solved this task is Sanja Šabović
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Calculate the number 306

NUMBERMANIA: Calculate the number 306 using numbers [4, 3, 1, 3, 47, 173] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 30
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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Pickup truck full of penguins...

A police officer sees a man driving around with a pickup truck full of penguins. He pulls the guy over and says, "You can't drive around with penguins in this town! Take them to the zoo immediately."

The guy obliges and drives away.

The next day, the officer sees the same guy driving around with the truck full of penguins again. This time, though, all the penguins are wearing sunglasses.

The police officer pulls the guy over and says, "I thought I told you to take these penguins to the zoo yesterday?"

The guy replies, "I did, and today I'm taking them to the beach."

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First refracting telescope

In 1608, Johannes Lippershey (c.1570-c.1619) demonstrated a new invention, the first optical (refracting) telescope - prototype of the modern telescopes - to the Netherlands States General. Lippershey was a lens grinder who furnished spectables. An apprentice discovered that - by separating both a long-focus lens and a short-focus lens in front of the eye - distant objects appeared closer. Lippershey mounted lenses in tubes, applied for a patent in 1608, and also offered them for sale to the Dutch government, which appreciated their military value. When Galileo heard of the device, he made a similar arrangement and used it to study the heavens. It was named a "telescope" by a guest at an outdoor banquet 14 Apr 1611 honouring Galileo, where he demonstrated it to the assembly.«
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