Last week, I
was talking to my young cousins about the sky and if hey could ask one
question what would it be. One of them asked about the clouds and said ‘why
don’t they fall down?’ I was struck by this question and decided to include the
answer in my Blog. Clouds are made up of mostly tiny water droplets or ice
crystals. These water droplets are very light and small that they can float in
the air. Also, the wind in the air prevents the small water droplets from
falling. This is why clouds don’t fall, but stay in the sky.
In my
previous Blog post I mentioned that I would discuss why the Sky goes dark at
night and where the stars fit in to all of this. Well, I’m sure that we all
know the answer to why the sky goes dark at night, I’ll explain it anyway. The Earth
is on an axis that is rotating all of the time. The Earth rotates away from the
sun every day and when it is not facing the sun it goes dark. When it is night
time we can see the moon and stars. One question which many people have asked is
‘why can’t the stars make the sky shiny and bright?’ Well, the stars are so far
away that the total amount of light produced by these stars isn’t enough to
make the night sky bright.
I hope that
you learnt something new about the Sky in this post. Check out my next Blog
post that is going to be about how and why the Sky changes colours from baby
blues to rosy reds.
Sources:
http://fineartamerica.com/featured/stars-in-the-night-sky-natthawut-punyosaeng.htmlhttp://www.techvibes.com/blog/the-sky-is-the-limit-for-businesses-in-the-cloud-2014-11-14
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