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Fabian Gallegos

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MATH PUZZLE: Can you replace the question mark with a number?

Volta announces his battery

In 1800, Alessandro Volta dated a letter announcing his invention of the voltaic pile to Sir Joseph Banks, president of the Royal Society, London. “On the electricity excited by the mere contact of conducting substances of different kinds"” described his results of stacking sandwiches of copper and zinc metal discs between pads of moist material. The letter had to pass from Italy, through France, which was then at war with Britain, so Volta sent the message in two parts. When the first pages arrived, Banks showed them to Anthony Carlisle, a London surgeon, who with William Nicholson immediately began trying to repeat Volta's experiments. By 2 May 1800, they stumbled upon electrolysis of water.«

A man has six children and is...

A man has six children and is very proud of his achievement. He is so proud of himself, that he starts calling his wife, "Mother of Six" in spite of her objections.
One night, they go to a party. The man decides that it's time to go home and wants to find out if his wife is ready to leave as well.
He shouts at the top of his voice, "Shall we go home now, 'Mother of six?'"
His wife, irritated by her husband's lack of discretion, shouts right back, "Anytime you're ready, Father of four."
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