I'm here until you say I'm n...
[4793] I'm here until you say I'm n... - I'm here until you say I'm not. What am I? - #brainteasers #riddles - Correct Answers: 33 - The first user who solved this task is Djordje Timotijevic
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I'm here until you say I'm n...

I'm here until you say I'm not. What am I?
Correct answers: 33
The first user who solved this task is Djordje Timotijevic.
#brainteasers #riddles
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The Fourth of July was coming...

The Fourth of July was coming up, and the nursery school teacher took the opportunity to tell her class about patriotism. "We live in a great country," she said. "One of the things we should be happy about is that, in this country, we are all free."
One little boy came walking up to her from the back of the room. He stood with his hands on his hips and said, "I'm not free. I'm four."
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Carl Wilhelm Scheele

Died 21 May 1786 at age 43 (born 9 Dec 1742). (also Karl) Swedish chemist who discovered oxygen in 1772. Scheele, a keen experimenter, worked in difficult and often hazardous conditions. In his only book, Chemical Observations and Experiments on Air and Fire (1777), he stated that the atmosphere is composed of two gases, one supporting combustion, which he named "fire air" (oxygen), and the other preventing it, which he named "vitiated air" (nitrogen). Due to delay in his publication, he lost priority to Priestley's discovery of oxygen in 1774. Scheele discovered many substances, such as chlorine (1774), manganese (1774), tungsten (1781), molybdenum (1782), glycerol, hydrocyanic (prussic) acid, citric acid, hydrogen sulphide and hydrogen fluoride. He also discovered a process resembling pasteurization.
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