Calculate the number 5394
[6388] Calculate the number 5394 - NUMBERMANIA: Calculate the number 5394 using numbers [2, 8, 9, 5, 59, 569] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 12 - The first user who solved this task is undefined
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Calculate the number 5394

NUMBERMANIA: Calculate the number 5394 using numbers [2, 8, 9, 5, 59, 569] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 12
The first user who solved this task is undefined.
#brainteasers #math #numbermania
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Wake up call

A man and his wife were having some problems and were giving each other the silent treatment. The next week, the man realized that he'd need his wife to wake him at 5 a.m. for an early flight.

Not wanting to be the first to break the silence, he finally wrote on a piece of paper: "Please wake me at 5 a.m."

The next morning the man woke up, only to discover it was 9 a.m. and he'd missed his flight.

Furious, he was about to go and scream at his wife when he noticed a piece of paper by the bed that said: "It's 5 a.m. Wake up.

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Georg Brandt

Died 29 Apr 1768 at age 73 (born 21 Jul 1694). Georg Rushd Brandt was a Swedish chemist who was the first person to discover a metal unknown in ancient times, which he isolated and named cobalt (1730). He published (1733) findings on the composition and solubility of arsenic compounds then researched antimony, bismuth, mercury, and zinc. His work on methods of producing hydrochloric, nitric, and sulfuric acids was published in 1741 and 1743. Brandt was one of the first chemists to completely forswear alchemy, and devoted his later years to exposing fraudulent alchemical processes for producing gold. Ancient Egyptians used tiny amounts of cobalt to make their glass blue. Cobalt is added to steel to make it harder and have a higher melting point. Traces of it are found in meat and dairy products as vitamin B-12.[Note: Brandt's birthdate is given as 21 Jul 1694 in Dictionary of Scientific Biography and Encyclopedia Britannica, but as 26 Jun 1694 in The Discovery of the Elements by Mary Elvira Weeks (1934).]
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