Calculate the number 2878
[7602] Calculate the number 2878 - NUMBERMANIA: Calculate the number 2878 using numbers [4, 7, 5, 4, 39, 282] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 1
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Calculate the number 2878

NUMBERMANIA: Calculate the number 2878 using numbers [4, 7, 5, 4, 39, 282] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
#brainteasers #math #numbermania
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Guess who's the bride

A young Jewish man excitedly tells his mother he’s fallen in love and that he is going to get married. He says, “Just for fun, Ma, I’m going to bring over three women and you try and guess which one I’m going to marry.”

The mother agrees.

The next day, he brings three beautiful women into the house and sits them down on the couch and they chat for a while. He then says, “OK, Ma, guess which one I’m going to marry.”

She immediately replies, “The one on the right.”

“That’s amazing, Ma. You’re right. How did you know?

The Jewish mother replies, “I don’t like her.”

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John Henry Poynting

Born 9 Sep 1852; died 30 Mar 1914 at age 61.British physicist who introduced a theorem (1884-85) that assigns a value to the rate of flow of electromagnetic energy known as the Poynting vector, introduced in his paper On the Transfer of Energy in the Electromagnetic Field (1884). In this he showed that the flow of energy at a point can be expressed by a simple formula in terms of the electric and magnetic forces at that point. He determined the mean density of the Earth (1891) and made a determination of the gravitational constant (1893) using accurate torsion balances. He was also the first to suggest, in 1903, the existence of the effect of radiation from the Sun that causes smaller particles in orbit about the Sun to spiral close and eventually plunge in.
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