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hung nguyen sy

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57. ভাস্কৰ জ্যোতি 202
58. Dejan Radovanović 202
59. hung nguyen sy 193
60. Alyssa Wu 192
61. Victoria Ogino 191
last 3 solved tasks
MATH PUZZLE: Can you replace the question mark with a number?
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.
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.

Thomas S. Kuhn

Born 18 Jul 1922; died 17 Jun 1996 at age 73. 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.”

Breakthrough?

Millions of years ago, there was no such thing as the wheel. The only way to move things was by carrying or dragging. One day, some primitive guys were watching their wives drag a dead mastodon to the food preparation area. It was exhausting work. The guys were getting tired just WATCHING.
Then they noticed some large, smooth, rounded boulders and they had an idea. They could sit on the boulders and watch! This was the first in a series of breakthroughs that ultimately led to television.
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