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Find number abc

If 70ba9 + a4ccb = 12a197 find number abc. Multiple solutions may exist.

Correct answers: 1

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During a training session at a...

During a training session at an artillery unit the sergeant-major was busy describing how the sophisticated aiming device of the artillery weapon system is used:
"As you all know, there are 180 degrees in a circle."
One of the soldiers put up his hand and said: "But there are 360 degrees in a circle, sergeant-major."
"You idiot," replied the sergeant-major, "I am obviously speaking about a small circle!"

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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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