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How Does the Steam Engine Work?
In 1804 the first steam-powered engine ran, carrying some iron in Wales, in Britain. But it was almost twenty five years later, in 1829, that George Stephenson, a British engineer, designed the “rocket” that paved the way for railways all over Europe, Asia and America. How Does the Steam Engine Work? [Illustration by Shiju George] The steam engine is an example of a heat engine. Heat engines are those that convert heat energy into mechanical work....
How do Flush Toilets Work?
Toilets are an amazing invention. Nearly every home has at least one. It is a very necessary utility needed in all homes to maintain hygiene. It is really amazing how this system works – you press a lever or pull a chain and whoosh! About two gallons of water rushes down into the porcelain bowl in three and four seconds. Gurgle-gurgle-urp it is clean and ready for use again! Toilets were known in India as early as three thousand years ago!...
Matchstick Models
Matchstick Models [Illustrations by D.K. Sharma] “Science, in essence, is a viewpoint — a worldview, an ability to critically examine phenomenon. It is an ability to see patterns, structures, sequences, trends, commonalities, regularities and generalities — in short, an ability to perceive and discover an order in the universe. From this point of view, every object is a piece of scientific apparatus and every child a budding scientist.” — Arvind Gupta,...
Jumbos have some oily fun
August 9: It’s a slippery situation that has officials of the Oil India Limited (OIL) in Assam religiously muttering the Ganesh Mantra. The public sector company owns and operates the world’s oldest oil producing wells here and they’re helpless against the antics of wild elephants who love the swooshing sound of oil spurting in Digboi’s oil fields. Jumbos have some oily fun [Illustration by Shinod AP] According to a report in The Indian Express, the wild tuskers move around freely in the oil fields, often opening crucial valves in the pipelines that connect the oil wells to the refineries....
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