Archive for the ‘General’ Category

Why does not water burn?

February 17, 2009 1 comment

Hydrogen poses a number of hazards to human safety, from potential detonations and fires when mixed with air to being an asphyxant in its pure, oxygen-free form.

Oxygen is the most common gas involved in any burning process.

Water, which is a composition of both Hydrogen and Oxygen, though does not burn!


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Categories: General

Gauss did it in seconds!

February 4, 2009 1 comment

Johann Carl Friedrich Gauss (1777 – 1855) was a German mathematician and scientist who contributed significantly to many fields, including number theory, statistics, analysis, differential geometry, geodesy, electrostatics, astronomy, and optics.

He is sometimes known as “the Prince of Mathematicians”

Gauss discovered the method of least squares and Gaussian elimination.

Gauss was something of a child prodigy.

A famous story, and one that has evolved in the telling, has it that in primary school his teacher, J.G. Büttner, tried to occupy pupils by making them add a list of integers. The young Gauss reputedly produced the correct answer within seconds, to the astonishment of his teacher and his assistant Martin Bartels. Gauss’s presumed method, which supposes the list of numbers was from 1 to 100, was to realise that pairwise addition of terms from opposite ends of the list yielded identical intermediate sums: 1 + 100 = 101, 2 + 99 = 101, 3 + 98 = 101, and so on, for a total sum of 50 × 101 = 5050.
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