Why the moon is lit?

Back in those days, when the ancestors of man only made his first meaningful steps on the planet, the attention of many chained moon.Why is that?It's simple!Parents know that even the smallest child who walks with difficulty and saw the moon in the sky, ignored her adult.Indeed, hanging in the night sky bright ball, ten times larger than the size of the largest star, can not go unnoticed.Every adult knows very well why the moon shines.This is not only obvious, but also explained the lessons of astronomy.

However, before all was not so obvious and there are many different points of view.For example, the early Christians never a question of "why the moon shines."Even on the first pages of the Bible it says that God created the sun to light the day (daylight), and the moon - to disperse the darkness of the night (night light).A little earlier, in the pre-Christian period, pagans believed Earth satellite patron goddess of the night.And now in the literature it is sometimes possible to read about the ghostly moonlight.It is human nature to believe in miracles ... What is its cause, since it is so different from the familiar to us all sunlight or artificial?Why the moon shines?How, in general, he took the epithet of "ghost"?In fact, the answer to the question "why the moon shines" is very simple.As is known, any body, whose reflection coefficient differs from zero in a big way, is capable of reflecting part of incident light flux.This property is used by some manufacturers of lighting devices: there are varieties of chandeliers, lamps glow which is directed reflectors not down as in conventional designs, and up at the ceiling.Through this room to create a soft (ghostly) coverage, it is not blinding - the so-called diffuse light reflected from the surface of the ceiling in all directions.

Moonlight occurs on a similar principle.In our solar system, only one celestial body characterized by an intense light - the sun.Its luminous flux falls also on the moon, from which partly reflected.According to rough estimates the brightness of the moonlight gives the sun 26 times.Be our companion black body, it could "see" only with the help of devices;Well A has a moon mirrored surface, its luminosity is almost equal to the sun.

distinguished phases: new moon, new moon, quarter, full moon.Since the spherical shape of the satellite, depending on the relative location of the conditional system "Sun-Moon-Earth" periodically changing the shape of the moon visible in the sky.If the satellite enters the Earth's shadow, the sun's rays do not reach the surface, so the night sky is empty (in fact, the moon is always there, just the reflected light of the Earth and the stars are not enough to see the satellite).This new moon.

glowing crescent symbolizes the emergence of a new phase - neomeniyu.After a few days 'light' has the right half - this first quarter.Then comes the time for a complete disc - a full moon.And finally, it is replaced by the last quarter - lights left half.Gradually transformed into a half moon (the letter "C") and the cycle repeats.

Although seemingly natural satellite of our planet for a long time had to be fully understood, but it is not.Lunar exploration continues.With remarkable consistency speculated that the satellite hollow.This is indirectly confirmed by unexplained phenomena, and then latched on Dusty surface.Perhaps Moon located inside the secret base of unknown race, hidden from the curious human sight.This remains to be a scientist to understand.Whatever it was, almost every night we can admire the wonderful moonlight night carefully dispersing mist.