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Wealth from
Waste
by A.K. Shrivastava. APH, N. Delhi. Pages: XXX1+363. Rs 895.
Environmental degradation is
going on at a worrying rate. Ecologists, administrators,
technocrats and other right thinking people are seriously
engaged in devising ways and means of putting an end to the
pollution of our earth, water and air. This book suggests that
waste can be gainfully recycled and used for the betterment of
humanity. Moreover, the author claims that this book,
"champions the replacement of fossil and nuclear fuels with
solar energy as a real solution to the threat to environment and
associated social consequences".
In India,
biomedical waste management, based on the Logmed system, is
being promoted. It involves thermal disinfection, i.e.,
separating wastes and treating them over a long period at
temperatures over 100 degrees centigrade. The resultant
disinfected solid waste can be gainfully used in landfill sites.
The same technology is used in heating water to generate power
at economical costs. So, apart from keeping the environment
clean, such methods can promote generation of power in an
eco-friendly manner.
Chapters like ‘Farm
waste to furniture’; ‘Odour eaters to ozone’; ‘Packaging
to pyrocatalytic’ etc are thought provoking.
India: Past
and Present
by Prakash Chander. APH, N. Delhi. Pages: V+326. Rs 795.
Who built the highway now known
as the Grand Trunk Road? Those brought up on history textbooks
will remember that the builder was Sher Shah Suri. However
Prakash Chander points out that Mauryans were great builders and
developers too. They "brought new lands under cultivation
and developed irrigation facilities. The famous Sudarshana lake
was built. Under the Mauryans, the entire subcontinent was
crisscrossed with roads. A royal highway connecting Taxila with
Pataliputra was built – a road which survives to this day as
the Grand Trunk Road". This is probable, because
Chandragupta Maurya’s empire that lasted from 4 BC to 3 BC
held sway, in John Keay’s words, "from Bengal to
Afghanistan and Gujarat, there is no clear indication of how far
South it extended…" In order to have a smooth
administration, a transport and communication superstructure
must have been laid thanks to the great thinker Chanakya.
About Babar, the
author says, "He was invited to India to fight against
Ibrahim Lodhi." However he refrains from mentioning that
Rana Sangha was the one who had invited Babar. But again, it
needs to be stated here that the Lodhi brothers had divided the
empire among themselves and Ibrahim was becoming a threat to his
rivals, especially the Rajputs.
On the advent of
Islam in India the author admits that not all Muslim invaders
were religious fanatics. However most of the conversions of the
locals were done on the pain of death. Jeziya was the other
instrument for conversion. Says John Keay, "Arab forces…had
first ventured onto Indian soil by crossing the Bolan Pass… in
c663. In fact twenty years earlier the first Muslims to reach
India had been newly converted Arab merchants trading across the
Arabian sea..." Many of them settled down in Kerala, Sri
Lanka, Gujarat etc without "provoking undue hostility
amongst already cosmopolitan populations…". So traders,
preachers, invaders and fanatics all helped promote Islam in the
subcontinent.
Nevertheless, this
book does not purport to be an inquiry into our history. It is
more of a handbook that includes other related subjects such as
economy, sociology, geography etc. There are separate chapters
on the leaders of India, the Indian Parliament, languages,
culture, population etc.
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