Lawrence Krauss-Fear of Physics. Spherical horse in a vacuum

Professor Lawrence Krauss has a talent for explaining complex ideas in simple language and communicating his enthusiasm for his subject

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The heliocentric system of the world: from Aristarchus to Newton

For the first time, the idea that the Earth revolves around the Sun arose in the minds of ancient Greek

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Measure the distance of the moon and its radius

Our natural satellite, the Moon, has been attracting people’s views for more than one millennium. It is the second brightest

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