It was so close that this arc will not forget for the rest of your life!!! :) :) :)
Rainbow is an optical and meteorological phenomenon, related to the appearance in the sky of almost continuous spectrum of light when the sun's rays fall on the tiny drops of water in the Earth's atmosphere. In order to monitor the arc, the sun must be behind the observer at a certain angle. It is a colorful part of the circle with red on the outside and violet on the inside. Full range colors red, orange, yellow, green, blue, indigo (dark blue) and violet. Sometimes seen in pink and rainbow, but it is not its natural color. Total seven colors.
Arc was observed in the presence of water droplets in the air and the presence of sunlight coming from the back of the observer at a slight angle or height. The most spectacular rainbow occurs when half the sky is still overcast, the observer is in a location with sky above him. Another typical place for arcs is near waterfalls or fountains. The effect can be artificially created by spraying the water droplets in the air on a sunny day. In good weather seen a double rainbow, the order of colors is reversed - the innermost red and outermost is blue. In general it is much paler than the first and in most cases very difficult to discern. When the sun rise above 43 ° above the horizon, the arc can not be seen. When a person is on the ground usually sees only part of the circle, but if you get off the ground it is possible to see the whole circle of the rainbow.
In very rare cases very strong moonlight can be seen lunar rainbow. Since the human eye for colors in low light is weakened lunar rainbow is seen as white.
The reason for the formation of the arc is different refraction of light in raindrops. The index of refraction for the longer wavelength (red) color is less than that of shortwave (blue, violet). Therefore red deviates less (137 ° 30 ') than the violet (139 ° 20') and the resulting white color decomposition in spectrum. The basis of this phenomenon is the dispersion of light arising from the refraction and reflection of parallel beam inside the spherical drop of water.
The most frequently observed primary arc, in which the light undergoes an internal reflection. It angular radius of the red color is 40-42 °. The secondary arc occurs when light is reflected twice in the drop. The order of colors in it is the reverse. The corner radius of the secondary arc is 50-53 °. Sky between the two arcs usually has a significantly darker hue. Under certain conditions it is possible to observe the arc by a higher order.
Do you also think that photographing arc is harmless? Watch carefully and think well!
It was so close that this arc will not forget for the rest of your life!!! :) :) :)
Rainbow is an optical and meteorological phenomenon, related to the appearance in the sky of almost continuous spectrum of light when the sun's rays fall on the tiny drops of water in the Earth's atmosphere. In order to monitor the arc, the sun must be behind the observer at a certain angle. It is a colorful part of the circle with red on the outside and violet on the inside. Full range colors red, orange, yellow, green, blue, indigo (dark blue) and violet. Sometimes seen in pink and rainbow, but it is not its natural color. Total seven colors.
Arc was observed in the presence of water droplets in the air and the presence of sunlight coming from the back of the observer at a slight angle or height. The most spectacular rainbow occurs when half the sky is still overcast, the observer is in a location with sky above him. Another typical place for arcs is near waterfalls or fountains. The effect can be artificially created by spraying the water droplets in the air on a sunny day. In good weather seen a double rainbow, the order of colors is reversed - the innermost red and outermost is blue. In general it is much paler than the first and in most cases very difficult to discern. When the sun rise above 43 ° above the horizon, the arc can not be seen. When a person is on the ground usually sees only part of the circle, but if you get off the ground it is possible to see the whole circle of the rainbow.
In very rare cases very strong moonlight can be seen lunar rainbow. Since the human eye for colors in low light is weakened lunar rainbow is seen as white.
The reason for the formation of the arc is different refraction of light in raindrops. The index of refraction for the longer wavelength (red) color is less than that of shortwave (blue, violet). Therefore red deviates less (137 ° 30 ') than the violet (139 ° 20') and the resulting white color decomposition in spectrum. The basis of this phenomenon is the dispersion of light arising from the refraction and reflection of parallel beam inside the spherical drop of water.
The most frequently observed primary arc, in which the light undergoes an internal reflection. It angular radius of the red color is 40-42 °. The secondary arc occurs when light is reflected twice in the drop. The order of colors in it is the reverse. The corner radius of the secondary arc is 50-53 °. Sky between the two arcs usually has a significantly darker hue. Under certain conditions it is possible to observe the arc by a higher order.
Posts
Post a Comment