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Dev Rajput

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Shoe manufacturing machine

In 1885, Jan Matzeliger gave a public demonstration in Lynn, Massachussets, of his newly-invented machine's ability to mass-produce shoes, and replace the tedious hand work previously required to attach the sole to the upper of a shoe. On this day, it is said he produced 75 pairs of women's shoes under factory conditions, many more than was possible by hand workers. His first patent on his shoe-lasting invention was issued on 20 Mar 1883 (U.S. No 274,207). With investors, his production model, was quickly adopted by and revolutionized the shoe industry.

A professor of chemistry wante...

A professor of chemistry wanted to teach his 5th grade class a lesson about the evils of liquor, so he produced an experiment that involved a glass of water, a glass of whiskey, and two worms.
"Now, class, closely observe the worms," said the professor while putting a worm into the water.
The worm in the water writhed about, happy as a worm in water could be. He then put the second worm into the whiskey. It curled up and writhed about painfully, then quickly sank to the bottom, dead as a doornail.
"Now, what lesson can we learn from this experiment?" the professor asked.
Johnny, who naturally sits in back, raised his hand and wisely, responded confidently, "Drink whiskey and you won't get worms."
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