![]() ALL ABOUT SATELLITESBharat Kidambi ALL ABOUT SATELLITES By S.K. Das Year 2016, pp. 158, Rs. 195.00 VOLUME XL NUMBER 11 November 2016 Dad, did you know, Kalpana Chawla was the first woman
of Indian origin to go to space?’ my eight year old daughter,
who is in class 3, mentioned with excitement. I was
helping her with her school project on the solar system. During the
course of the project, we discovered together, the truly inspiring
personal journey of Kalpana Chawla from Karnal, a small town in
Haryana to her joining the NASA programme in the US as an astronaut.
Kalpana’s fascination for space and flying was sparked off at a
very early age.
On a recent trip to the US, I had the opportunity to take my
daughter to the world famous Morehead Planetarium and Science
Centre in North Carolina. The planetarium was used to train the
astronauts for the Gemini and Apollo programme in celestial navigation.
It was heartening to see so many parents bring their young children
to the planetarium and exposing them to the fascinating world of
astronomy. It was really inspiring to see how the instructors took their
jobs seriously, and encouraged the kids present to ask any questions.
All About Satellites by S.K. Das, an advisor to ISRO, logically
explains the need for satellites, the various kinds of satellites and
their use.
It is fascinating to know that there are over a thousand artificial
satellites orbiting the earth. While we worry about garbage and debris
on earth and its impact on our environment, outer space too is
not spared of this issue. We are informed that there are over five
hundred thousand pieces of debris, or ‘space junk’ that are travelling
at speeds of upto 17,500 kmph fast enough to cause severe damage
to a spacecraft in the event of a collision. The author mentions an
interesting fact about how things that fall out of the astronaut’s hand
can also become part of space debris. In 1965, astronaut Edward
White lost a glove, while performing a space walk in the vicinity of
the Gemini satellite. The glove kept orbiting the earth for a month
at a speed of 28000 km per hour!!!
There is a very informative chapter on the Indian space research
programme. Started soon after Independence, India today is one of
the leading countries in space development. It is one of ten countries
in the world to have independently launched a satellite into space.
Today thanks to the brilliant scientists at ISRO, we are able ... Table of Contents >> |