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Edgardo Carreon

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What is two days after the day after the day before yesterday?
MATH PUZZLE: Can you replace the question mark with a number?

International metric standards

In 1875, the International Bureau of Weights and Measures was established in Sèvres, France, by the International Metric Convention, (also known as the Treaty of the Meter), initially signed by representatives of 17 nations. Contributions from signatory goverments support the Bureau, which became the depository for the International Prototypes of the Meter and the Kilogram, and secondary standards. In French, it is known as the Bureau International des Poids et Mesures (BIPM). In subsequent years, additional nations joined, so by 2012 there are 53 member states, including all the major industrialized countries. The Convention thus provides the organizational structure for international agreements concerning matter relating to units of measurement. Each 20 May is now World Metrology Day.«[Original logo of the BIPM.]

Two hikers were walking throug...

Two hikers were walking through central Pennsylvania when they came upon a 6 foot wide hole in the ground. They figured it must be the opening for a vertical air shaft from an old abandoned coal mine. Curious as to the depth of the hole, the first hiker picked up a nearby rock and tossed it into the opening. They listened... and heard nothing.
The second hiker picked up an even larger rock and tossed it into the opening. They listened... and still heard nothing. Then they both picked up an old railroad tie, dragged it to the edge of the shaft, and hurled it down. Seconds later a dog came running up between the two men and jumped straight into the hole. Bewildered, the two men just looked at each other, trying to figure out why a dog would do such a thing.
Soon a young boy ambled onto the scene and asked if either man had seen a dog around here. The hikers told him about the dog that had just jumped into the hole.
The young boy laughed and said, "That couldn't be my dog. My dog was tied to a railroad tie!"
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