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Fabrice Lagouge

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366. Tyese Crawford 3
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MATH PUZZLE: Can you replace the question mark with a number?
MATH PUZZLE: Can you replace the question mark with a number?
MATH PUZZLE: Can you replace the question mark with a number?

Gustav Robert Kirchhoff

Died 17 Oct 1887 at age 63 (born 12 Mar 1824).German physicist who, with Robert Bunsen, established the theory of spectrum analysis (a technique for chemical analysis by analyzing the light emitted by a heated material), which Kirchhoff applied to determine the composition of the Sun. He found that when light passes through a gas, the gas absorbs those wavelengths that it would emit if heated, which explained the numerous dark lines (Fraunhofer lines) in the Sun's spectrum. In his Kirchhoff's laws (1845) he generalized the equations describing current flow to the case of electrical conductors in three dimensions, extending Ohm's law to calculation of the currents, voltages, and resistances of electrical networks. He demonstrated that current flows in a zero-resistance conductor at the speed of light.

The way to achieve true inner peace

Sir Bedevere:

'Now, why do witches burn?'


'...because they're made of... wood?'

Sir Bedevere:

'Good. So how do you tell whether she is made of wood?'

Peasant 2:

'Build a bridge out of her.'

From Monty Python and the Holy Grail

Picture: Rex Features

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