To begin, I advise you to buy a small bezel 60 mm or 80 mm in diameter and 500 to >>
Which material to observe the stars?
With the naked eye you can observe the stars and the constellations and it is also the only way to >>
The Sun Modifies The Climate
As you have understood according to the season, the Sun illuminates and warms more or less strong certain regions of >>
Blue Sky and Red Sun
The blue color of the sky is explained by the diffusion of light by the air molecules contained in the >>
The Rainbow and The Halo
It was Newton, at the age of 23, who discovered in 1666 that the light of the sun was made >>
Fly to The Moon!
For thousands of years men believed that the Moon was so remote that it was inaccessible. When someone was told >>
What is Light?
Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which >>
Advantages and Disadvantages of Space Telescopes
Compared to the 40m diameter ELT, which will likely be used for 100 years and more, the JWST will fail >>
Archaeoastronomy: From the Truth Doc
Before we consider exploring our galaxy and the universe, we must first and foremost place our home, the earth and >>
Our Galaxy forms a disc a little thicker in the center that is observed in profile, which is why the >>