Find the missing text [**O**N]
[3498] Find the missing text [**O**N] - Background picture associated with the solution - #brainteasers #wordpuzzles - Correct Answers: 25 - The first user who solved this task is Snezana Milanovic
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Find the missing text [**O**N]

Background picture associated with the solution
Correct answers: 25
The first user who solved this task is Snezana Milanovic.
#brainteasers #wordpuzzles
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Use The Word

A pre-school teacher says to her class, "Who can use the word "definitely" in a sentence?"
First a little girl says, "The sky is definitely blue."
The teacher says, "Sorry, Amy, but the sky can also be grey or orange."
Then a little boy says, "Trees are definitely green."
"Sorry, but in the autumn the trees are brown."
Johnny from the back of the class stands up and asks, "Does a fart have lumps?"
The teacher looks horrified and says, "Johnny! Of course not!"
"OK. Then I have definitely shit my pants."
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DuPrene

In 1931, The DuPont company, of Wilmington, Delaware, announced the first synthetic rubber. It was known as DuPrene, and from 1936 as Neoprene. Many scientists were trying to make natural rubber in the 1920s and 30s. One of the Wallace Carothers team, Gerard Berchet, had left a sample of monovinylacetylene in a jar with hydrochloric acid (HCl) for about five weeks. Then on 17 Apr 1930, coworker Arnold M. Collins happened to look in that jar and found a rubbery white material. The HCl had reacted with the vinylacetylene, making chloroprene, which then polymerized to become polychloroprene. The new rubber was expensive, but resisted oil and gasoline, which natural rubber didn't. It was the first good synthetic rubber.[Image: Wallace Carothers showing the new DuPrene product]
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