Good Lifestyle

"Scintiller, twinkle, small star." Although it is ostensibly just a picturesque crib, theJane Taylor Poem that we all know by heart is so much more. Yes, it's a lullaby. Yes, it is an introductory language tool. But for many children, it is also the first taste of space and science - and the idea that it might be more to life than the meeting of the eye.

Here is the thing, although: this little saying is wrong. The stars do not really sparkle.

Eh?

This is true: the change of evolution of brightness and color - the indisputable glossy stars give off a clear night - is all because of the atmosphere and how it affects human perception. More specifically, the tumult of the terrestrial atmosphere is responsible for the changes of light that we interpret like glittering stars. In astronomical terms, this blur and glittering are called"Astronomical Indicator." As the atmosphere is spoiled (think like boiling water, mix and move in different directions), stars light is refracted in different directions. Then the light changes slightly into the brightness and position, which causes a famous flicker.

So, no, it is not entirely an optical illusion; We really see a change of light and position. But the star itself does not change - it's just a result of the lens through which we see it: the atmosphere.

As you may know, the atmosphere of our planet is divided into five layers: the troposphere (where we live), the stratosphere, the mesosphere, the thermosphere and, finally, the exosphere (where live the satellites). It is this base layer, the troposphere - specifically, the planetary border layer, the closest part of the soil - responsible for turbulence, which mucks things in place. (On another note, turbulence is part of the reason the golf balls fly in the air of the way they do;It is also because of their original form amplified.)

To simply put it, the sun warms the gases of the irregular atmosphere, creating convection currents and circular wind patterns such as air displacements between high pressure areas. TurbulenceRedistribute and mix Heat, moisture, pollutants and all that constitutes the atmosphere. This excitable layer is where all times occur and its turbulence is responsible for the astronomical finding, which makes it difficult to accurate the astronomy to the land. In fact, all roadblocks facing astronomy, budget cuts, staffing shortages, the simple and undeniable fact that technology is simply not there-the turbulence is one of the largest.

Powerful spatial telescopes like the hubble are able to see the stars exactly as they are, without any Pesky atmospheric interference. (There is no atmosphere in space). The high altitude observatories - like those of Mauna Kea, Hawaii or Palma, in the Canary Islands - also benefit from better visibility because there is less air between the lens and the stars. Chile is also a popular location for the observatories, as colder temperatures also produce more ideal Stargazing conditions. The hot air tends to be more turbulent, if colder is clearer. Other than that, however, spatial observation is sure to run in the problem of turbulence from time to time. And for more fascinating facts from the big beyond, check these21 mysteries on the space that no one can explain.

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