How impacting is light on the
society?
With one topic discussed, let us now move on
to the next. It is also a topic of great interest to many as we open up new perspective in
the world of light. Indulge...
Firstly, have you ever heard of Solar energy?
It is actually light energy which have been harnessed to be converted to subsequent of
most vital forms of energy such as electrical energy. With that alternative, our
electrical appliances and electricity can be supplied when light is all around us. This
convertion of energy requires special cells which have the ability to do so. However, for
every plus point this method has yet another disadvantages. When light is absent, nothing
can be achieved. This method has been made known to the world and has already been
implemented into functioning solar cars and other solar cells being used to heat up water
for domestic uses. It is not of wide use now but will still be considered a major energy
alternative other than our conventional dependancy on fossil fuels.
Next, the construction of our underground
tunnels and other installations will not be possible in the absence of light. It enables
contruction processes to go on regardless of the times of the day and greater accuracy
when installing as well as the higher safetu standards involved.
Thirdly, the invention of optical instruments
principally depends on light. If light is not present, thses optical instruments cannot be
utilised and their full potential in the area of science will not be unravelled. This has
a heavy implication as medical advancement will come to standstill as no more discoveries
can take place.
Next, light also enables the calculation of
the distances of various stars in our solar system from the earth. The area of astronomy
can thus flourish as people can now understand better our nearby stars and its
accompanying scientific information behind it.
However good light can have on the society, it
does have its ugly side as well. For instance, ultraviolet light emitted into our
atmosphere will greatly affect the help of many. People will start to develop abnormal
cells and skin cancer will be the result.
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