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Fractal geometry - an amazing miracle

What is energy?

The composition and density of the kerosene, a preparation method thereof

Auger drilling: technology and its features

Endogenous processes - the hot breath of the planet

Young's modulus and its main physical sense

Pleonasm and tautology: examples of errors and appropriate use of words of similar meaning

Relative molecular weight - a physical quantity characteristic of each substance

Pi - a mathematical riddle

What is the ionic bond?

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The value of the name Kate, Catherine
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1998 who sign?