BRAIN TEASERS

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Which is a winning combination of digits?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.

Correct answers: 34

The first user who solved this task is Nílton Corrêa De Sousa.

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In retrospect

On a Saturday evening, I was watching a film with harsh organ music on the TV when I screamed, "Nooo! Do not enter that church, you stupid man!"

My wife came running from the kitchen and asked, "What are you watching?"

I replied, "Video of our marriage!"

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Thomas S. Kuhn

Died 17 Jun 1996 at age 73 (born 18 Jul 1922). Thomas Samuel Kuhn was an American science historian and science philosopher was a MIT professor, noted for his highly influential The Structure of Scientific Revolutions (1962). He held that science was not a steady, cumulative acquisition of knowledge, but it is “a series of peaceful interludes punctuated by intellectually violent revolutions.” Then appears a Lavoisier or an Einstein, often a young scientist not indoctrinated in the accepted theories, to sweep the old paradigm away. Such revolutions, he said, came only after long periods of tradition-bound normal science. He pointed out that scientific research and thought are defined by “paradigms,”or trusted theories, concepts, methods and experiments. Such paradigms are accepted by scientists, who continue to extend, refine, explain and measure results until they meet an problem that cannot be resolved within the established framework. Such anomaly or contradiction eventually requires an intellectual revolution, such as the paradigm shifts from Ptolemaic cosmology to Copernican heliocentrism. “Frameworks must be lived with and explored before they can be broken.”

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