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Maja Nikolic

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last 3 solved tasks
MATH PUZZLE: Can you replace the question mark with a number?
Can you name the athletes by the picture?
Look at the series (0, 3, 8, 15, 24, 35, 48, ?), determine the pattern, and find the value of the next number!

Sir William Siemens

Died 18 Nov 1883 at age 60 (born 4 Apr 1823). Sir (Charles) William Siemens was a German-English engineer and inventor whodevisedthe “regenerative system” of using waste gases to preheat fuel gases, for the open-hearth furnace used in steel manufacturing. He was alsoimportant in the telegraph industry, apioneer in undersea cable.He assisted in the engineering of the London-Calcutta telegraph line (1869), a landmark achievement in communications.His name at birth was Carl Wilhelm Siemens, the younger brother of Ernst Werner Siemens (later ennobled asWerner von Siemens, who founded what is now the multinational Siemens company). Carl first visited England as agent for his brother to introduce an electroplating device. He returned in 1844, stayed, became a naturalized British subject in 1859, and known as Charles William Siemens until knighted as Sir William Siemens a few months before his death.«[NYT obituary gives date of death 18 Nov 1883. EB gives 19 Nov 1883.]

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