What is abcd?
[160] What is abcd? - Author: Nebojsa Jevtovic - #brainteasers #math - Correct Answers: 100 - The first user who solved this task is Djordje Timotijevic
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What is abcd?

Author: Nebojsa Jevtovic
Correct answers: 100
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math
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Two married buddies are out dr...

Two married buddies are out drinking one night when one turns to the other and says, "You know, I don't know what else to do. Whenever I go home after we've been out drinking, I turn the headlights off before I get to the driveway. I shut off the engine and coast into the garage. I take my shoes off before I go into the house, I sneak up the stairs, I get undressed in the bathroom. I ease into bed and my wife STILL wakes up and yells at me for staying out so late!"
His buddy looks at him and says, "Well, you're obviously taking the wrong approach. I screech into the driveway, slam the door, storm up the steps, throw my shoes into the closet, jump into bed, rub my hands on my wife's butt and say, 'Lets do it!' And, she's always sound asleep."
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Jakob Steiner

Born 18 Mar 1796; died 1 Apr 1863 at age 67.Swiss mathematician who was one of the greatest, contributors to projective geometry. He discovered the Steiner surface which has a double infinity of conic sections on it. The Steiner theorem states that the two pencils by which a conic is projected from two of its points are projectively related. He is also known for the Poncelet-Steiner theorem which shows that only one given circle and a straight edge are required for Euclidean constructions. His work included conic sections and surfaces, the theory of second-degree surfaces and centre-of-gravity problems. He developed the principle of symmetrization (1840-41). In 1848 he ws the first to define various polar curves with respect to a given curve, and introduced the “Steiner Curves.”«
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