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Небојша Јевтовић

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42
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98. Milana Padezanin 43
99. Ashok S 43
100. Небојша Јевтовић 42
101. Chindu Cho 40
102. Zorica Bera 40
last 3 solved tasks
NUMBERMANIA: Calculate the number 1564 using numbers [8, 4, 5, 1, 91, 717] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
NUMBERMANIA: Calculate the number 866 using numbers [9, 7, 8, 9, 46, 482] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
NUMBERMANIA: Calculate the number 1864 using numbers [7, 2, 1, 3, 33, 859] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

William Webster Hansen

Born 27 May 1909; died 23 May 1949 at age 39.American physicist who contributed to the development of radar and is regarded as the founder of microwave technology. He developed the klystron, a vacuum tube essential to radar technology (1937). Based on amplitude modulation of an electron beam, rather than on resonant circuits of coils and condensers, it permits the generation of powerful and stable high-frequency oscillations. It revolutionized high-energy physics and microwave research and led to airborne radar. The klystron also has been used in satellite communications, airplane and missile guidance systems, and telephone and television transmission. After WW II, working with three graduate students, Hansen demonstrated the first 4.5 MeV linear accelerator in 1947.

Why do we close our eyes when we pray, cry, kiss, dream?

Why do we close our eyes when we pray, cry, kiss, dream?
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