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Find number abc

If ab9a9 - 27a01 = 7ca8 find number abc. Multiple solutions may exist.

Correct answers: 41

The first user who solved this task is Djordje Timotijevic.

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Kissing the secretary

One fine morning Dean came early into the office and caught his subordinate,Martin kissing his secretary.
Angered, Dean screamed: “Martin, do I pay you good salary for doing this?”
Martin: “No sir, I am doing this for free.”

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H.L. Callendar

Born 18 Apr 1863; died 21 Jan 1930 at age 66.Hugh Longbourne Callendar was an English physicist who was famous for work in calorimetry, thermometry and especially, the thermodynamic properties of steam. He published the first steam tables (1915). In 1886, he invented the platinum resistance thermometer using the electrical resistivity of platinum, enabling the precise measurement of temperatures. He also invented the electrical continuous-flow calorimeter, the compensated air thermometer (1891), a radio balance (1910) and a rolling-chart thermometer (1897) that enabled long-duration collection of climatic temperature data. His son, Guy S. Callendar linked climatic change with increases in carbon dioxide (CO2) resulting from mankind's burning of carbon fuels (1938), known as the Callendar effect, part of the greenhouse effect.«

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