What is the missing number?
[4956] What is the missing number? - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 95 - The first user who solved this task is Djordje Timotijevic
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What is the missing number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 95
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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600 Story Hotel

Tom, Dick and Harry went to a party. After the party they returned to the hotel. The hotel was 600 stories high.
Unfortunately for them, the elevator was not working. They made a plan for the first 200 stories, Tom will crack jokes.
The second 200 stories Dick will tell a happy story and lastly Harry will tell a sad story.They then started up the steps

After 2 hours it was Harry's turn. He turned to the other two and said "Ok guys, here's my sad story. I forgot the keys downstairs.

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Augusto Righi

Born 27 Aug 1850; died 8 Jun 1920 at age 69.Italian physicist who showed that radio waves displayed characterics of light wave behaviour in the manner of reflection, refraction, polarization and interference. Thus the nature of radio waves was similar to light, but with the difference of greater wavelength and a part of the same electromagnetic spectrum as light. He discovered magnetic hysteresis (1880). He was the first person to generate microwaves, and opened a whole new area of the electromagnetic spectrum to research and subsequent application. By 1900 also began work on X-rays. In 1903 he wrote the first paper on wireless telegraphy. His improvements on the work of Hertz were passed along to Guglielmo Marconi, who studied in Righi's laboratory.
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