Top 15 strange natural phenomena (2)

Exotic clouds, blue suns, fake suns, twin rainbow . are strange and rare natural phenomena to be witnessed.

>>>Top 15 strange natural phenomena (1)

8. Exotic clouds

These clouds look like the ocean surface is stirred when viewed from below. These strange clouds are named asperatus, which means a kind of chaotic, strong, and irregular ripples.

Whether this cloud is a new form is still a mystery. However, experts believe that the lumpy lower surface of the asperatus cloud may be due to strong winds that stir the previous cold and hot gas layers.

9. Blue sun (green flashing)

This special phenomenon occurs when the Sun is very low, only a small part emerges from the horizon. A very small part of the Sun's upper edge appears blue for 1 to 2 seconds, very different from the usual color.

The cause of the phenomenon is the dispersion of light in the atmosphere when light from the Sun passes through the thick air layer, light rays of different wavelengths (corresponding to different colors) are refracted to the corners. different. When the Sun is in a low position, close to the horizon will have a part of red light (and the near-red colors) that cannot reach the observer's eye while the blue part of the refraction is more so it should reach the observer .

10. The sun is fake

The fake sun is a two, three or more 'Sun' phenomenon that appears at the same time, only one true Sun is illusory to be called the Fake Sun. The sun is brighter than the fake Sun.

The phenomenon takes place when the sun is near the horizon, the sun is the bright areas at the edge.

This astronomical phenomenon is rare but unbelievable because it is normal optical phenomena, due to the refraction of light of crystalline dust in the clouds above.

11. Rainbow 'twins'

"Twin" rainbow is a rare phenomenon, they have the same origin but split into two separate arc.

The mystery of the phenomenon lies in the combination of water droplets of different sizes. Sometimes, two showers occur at the same time. Meanwhile, the raindrops will have different sizes and create slightly deformed rainbows. These rainbows combine to form a twin rainbow.

12. Striped iceberg in the South Ocean

This impressive ice sheet formed thousands of years ago, currently floating around Antarctica. Some stripes are melted and freeze. Other lines formed by dirt and dust clung to, as the ice slid on the slope.

Striped ice with many different colors including gold, brown, black and blue .

13. 'Catatumbo flash' phenomenon

In the evening at the mouth of the Catatumbo River, Venezuela, the sky usually appears about 150-200 light flashes per minute but almost no thunder comes.

Scientists call this the world's largest 'Catatumbo' or 'ozone production' phenomenon, formed by continuous ozone (O3) gas produced by the interaction of lightning with oxygen in the atmosphere, due to the exposure of cold air masses from the Andes to the humid hot air from the nearby lake area.

It is estimated that this phenomenon occurs about 150 nights / year, occurring most when the humidity is high.

14. Gravity wave

One of the visible effects of gravity waves is the spatial alternating cloud model of the middle air. These lines alternately show where the air is rising and where the waves sink.

The phenomenon is caused by vertical rotation of air, often the result of the masses of air crawling down from the mountain or during heavy storms with lightning. This wave is only produced when the air mass is packed into a stable "airbag". The upward momentum of the air masses into the air bag will cause changes in the atmosphere, altering the dynamic current. Then, the dynamic current is balanced by the atmosphere in the atmosphere, causing vibrations that can be seen with the naked eye in the cloud.

15. Moeraki boulder beach

The giant rocks in Moeraki usually weigh up to several tons and have a diameter of more than 2m.

The stone beach has a history of 65 million years ago. This is the result of the erosion and agglomeration of ancient mud layers from calcium and carbonate around debris on the ocean floor, formed in seabed sediments similar to pearl formation.