https://steemitimages.com/DQmQW3cttUJPhvRkNQEyh3uTh8uki1zg7KFm9CnzFdGM3ct/image.png

My son Roulan @divinekids love to know about science and he enjoys it like his daddy! LOL... A lot of questions in his mind. We ask him before what he want when he grew up? He said we want to be a teacher, the next he wants to be an astronaut then the next week he decides to be a scientist! Her mommy @arrliinn and I told him that,

> It is to early to decide what you want. When you are in your right age you will feel what you really want in your life then you can decide. **Most of my son question is really interesting and a bit hard to explain,** ### Why can't you use phones on planes? It might be because portable electronics like devices like [cellphones](https://en.wikipedia.org/wiki/Mobile_phone) and tablets meet radio signals. The signals can interfere the flight control. They may also distract the radio communication of the [Air Traffic Controller](https://en.wikipedia.org/wiki/Air_traffic_controller) of the ground.

https://steemitimages.com/450x250/https://steemitimages.com/DQmfXTwgU2RvJRe9SiPtR9FxuJkSHbcmqtEvQgcAeM4Xbra/03.jpg

Besides this, cellular tower our miles blow of the Airplane. Hence, cellphones try to mid-air stronger radio signal to detect the network, this is can increase the possibilities of causing interference with the airplane electronic equipment.

Hence, portable electronic devices are told to be either turned off or to be kept in Airplane mode or flight mode. This prevents the emission of radio signals. Dus helping to keep all a boarding equipment working properly.

### Why do we get pimples? Pimples cause due to the action of the [Sebaceous gland](https://en.wikipedia.org/wiki/Sebaceous_gland) present in our skin. This gland produces an oily substance called sebum. [Sebum](https://en.wikipedia.org/wiki/Sebaceous_gland#Sebum) comes up to the skin surface through the pore and moisturizes your hair and skin. It is just like a moisturizer.
https://steemitimages.com/450x250/https://steemitimages.com/DQmQHnvHgxNALcBREKCarD4RhqUjobLoLZaLvNxhjbvaJc9/02.jpg

However, sometimes the pore gets block due to dead skin cells. Due to this blockage, the sebum gets accumulated creating a bump. A sebum is a very good source of nutrients for the bacteria in our skin, they start to grow in that area, leading to an infection.

Our [immune system](https://en.wikipedia.org/wiki/Immune_system) response to this infection by sending blood to the immune cells. Blood makes the area red where are the immune cells called the bacteria resulting in inflammation and Formation of a pimple.
### Why does our stomach growl? Growling sound is produced mostly due to movement of gas in the [digestive tract](https://en.wikipedia.org/wiki/Gastrointestinal_tract), especially in the intestines. Now gas can either enter or be produced in the intestines. When we eat food very quickly, sometimes we swallow gas produce air along with food. Besides this [Bacteria](https://en.wikipedia.org/wiki/Bacteria) in our intestines also produce gases.
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Now three [digestion](https://en.wikipedia.org/wiki/Digestion) the muscles of your intestines contract in order to push food ahead. However, gases also get pushed along with food now as our intestine is hallowed tubes such movements of gases produces growling sounds.
Besides this, hungering produces growling. This is because when we are hungry our digestive system starts preparing for the next meal. Hence, it clears the remains of last meal causing more muscle contraction does produce more growling sounds.

### "TYNDALL EFFECT" Why does the sky appear blue?
Do you think that our eyes have a natural inclination toward blue as compare to violet? This is one of the reasons why our sky appears blue and not violet. To understand this, first, let us study about Tyndall Effect.

[Tyndall Effect](https://en.wikipedia.org/wiki/Tyndall_effect) is a phenomenon in which a beam of lights scattered on striking the particles presents on its path. This scattering of light is responsible for the blue color of the sky.
https://steemitimages.com/450x250/https://steemitimages.com/DQmNmqfTw4uFZrLP1aK3MinMspQYpZtPEF9xCeuXpS5xow7/05.jpg

We know that the atmosphere primarily consists of Oxygen and Nitrogen particles along with dust, smoke, and other particles in comparatively smaller proportion. The size of t his particles in the atmosphere is responsible for the color of scattered light.

When the sunlight strikes the particles of dust, smoke, etc which are bigger than the wavelength of sunlight, all the colors of sunlight are equally scattered. The result, the scattered light appears white.

However, when the sunlight strikes the particle of [oxygen](https://en.wikipedia.org/wiki/Oxygen) and [nitrogen](https://en.wikipedia.org/wiki/Nitrogen), which are smaller than the wavelengths of sunlight; the colors of sunlight have a shorter wavelength that is blue and violet are much more scatter than color having a longer wavelength. But our eyes are much more sensitive to blue color as compared to violet, hence the sky appears blue to us. https://steemitimages.com/DQmcotqHBkrph3y7SSFiEELm3rsDKAyX8P3f4mfrCJCrMYD/lines.jpg Maybe this lesson is enough. My brain seems to be compressing! It seems my brain is empty and nothing goes in! LOL... I feel dizzy! I did not review all spelling. You have to understand it please... https://steemitimages.com/DQmcotqHBkrph3y7SSFiEELm3rsDKAyX8P3f4mfrCJCrMYD/lines.jpg
Again, I hope you enjoyed and learned at least some of my shares today. It does not have to be a long written, what matters is that there is a good lesson to be found in every story or blog, and it is interesting to read especially if there is a picture or video.
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