Siya: Hey Elvis, what are you doing?
Elvis: I have cleaned my garden and now burning
the debris in the garden.
Siya: Using a magnifying glass??
Elvis: Yes. I have concentrated
Sun’s rays using a magnifying glass. The
heat created is strong enough to burn a paper
of dry leaves like what I did now.
Siya: Wow, Sun’s energy is so powerful!
Elvis: Yes, Sun is a constant source of energy
and all the planets in our solar system and
all the living beings are surviving because
of it.
Siya: Please Elvis, I want to know more about
it.
Elvis: Sure..
The Sun is a huge ball of hot, glowing gases.
It is the only star in our Solar system.
The hottest part of the Sun is its centre or core.
The gases burn and boil all the time.
The light from the gases is so bright, that
if we look directly at the Sun, we will hurt our eyes.
Since, ancient times, people have been using the Sun, to locate places and to find their
way back, if they get lost.
The rays of the Sun provide the energy for
every living thing on Earth.
Plants use the Sun’s energy to prepare food
for themselves.
In the process of making food, they release
oxygen which, animals and we breathe.
Man uses the energy from the Sun, that is
Solar energy to run various appliances.
The word Solar is derived from the Latin word,
‘Sol’, which mean sun’.
Solar energy refers to anything that uses
or operates with the Sun’s energy.
The Sun’s gravity heats all the celestial
objects in their respective orbits revolving
around it.
Its gravity is 28 times stronger than the
Earth’s.
We don’t feel it because the Earth is in
constant orbit around the Sun.
The Sun is made up of gases.
Hydrogen makes up most of the Sun, but it
also contains Helium, and small amounts of
other gases.
Nuclear fusion goes on inside the Sun all
the time and this process releases energy,
which we receive on Earth.
This is Solar Energy, which is unlimited.
It will not get over at least thousands of generations.
We all know that looking at the Sun directly,
with naked eyes or with binoculars is harmful
and can blind us permanently.
Several spacecrafts dedicated to observing
the Sun, have been launched.
SOHO, S O H O (Solar and Heliospheric Observatory)
was launched on Deceber 2, 1995.
It was stationed at a distance of 1.5 million
km from Earth from where it got an uninterrupted
view of the Sun.
Siya: Wow, Elvis. This information was really
very interesting.
Elvis: Yes, I know, but there is lot more
to know about the Sun, which I will tell you
later!!
Siya: Thanks Elvis. I will definitely come
back to you for more such information.
