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Calculate the number 1134

NUMBERMANIA: Calculate the number 1134 using numbers [4, 3, 4, 9, 99, 480] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 18

The first user who solved this task is Djordje Timotijevic.

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Political Conference

Arriving late for a political conference, the college student asks another student standing by the door, "How long has the candidate been talking now?"
"Half an hour."
"And what is he talking about?"
"That I wouldn't know, he hasn't said."

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Production of ammonia

In 1910, a U.S. patent for the Production of Ammonia was issued to Fritz Haber and Robert Le Rossignol (No. 971,501). This process could produce ammonia on a large scale directly from its component gases, hydrogen and nitrogen, by passing a mixture of them over heated finely-divided osmium metal used as a catalyst. A typical pressure of 175 atmospheres and a temperature of 550ºC could easily give an 8% by volume yield of ammonia. Although nitrogen makes up 80% of the air, as a gas it is quite unreactive. Despite its ready availability, nitrogen gas had previously been difficult to combine in a chemical form. Once nitrogen has been chemically combined in the form of ammonia, many other nitrogen compounds can be made.«

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