Every two years or so, there is a total solar eclipse somewhere on the Earth, in Africa, in Asia, in America and sometimes in Europe as it was on August…
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To begin, I advise you to buy a small bezel 60 mm or 80 mm in diameter and 500 to 900 mm focal length. You can also use a spotting…
With the naked eye you can observe the stars and the constellations and it is also the only way to learn to recognize them by comparing what you see with…
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As you have understood according to the season, the Sun illuminates and warms more or less strong certain regions of the Earth. In summer, in Europe it is hot on…
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The blue color of the sky is explained by the diffusion of light by the air molecules contained in the atmosphere. Most colors, red, orange and yellow, go through the…
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It was Newton, at the age of 23, who discovered in 1666 that the light of the sun was made up of a mixture of colors. By passing the light…
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For thousands of years men believed that the Moon was so remote that it was inaccessible. When someone was told that she was in the moon, they meant that she…
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