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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....
A Train Adventure of Wild Animals
An empty goods train was speeding through a jungle. Up front, in the engine, was the driver and at the back, in the last compartment, was the guard. Apart from them, the entire train was empty. A goods train carries goods. Like logs of wood, or boxes of chocolate – ummm, even cars and jeeps. But this train had been carrying coal. It had brought coal from a mine in Dhanbad in Bihar for a thermal power station in Delhi called “Badarpur”....
Why do Humans Sweat?
It is an annual ritual in most Indian homes. With the onset of summer it is time to bring the rusty, rickety old coolers down from the terrace and get them repaired. The reason is obvious – it is difficult to live through the hot, sweaty Indian summer without an air cooler. But did you know that the human body has its own cooler as well? Think of the times you have travelled in a car....
Which is the World's Oldest Working Locomotive?
The Indian Railways is one of the world’s oldest railways dating back to 1849. It also has the largest network in terms of route length covering nearly 63,000 route kilometres touching every nook and cranny of India. The Indian Railways is also the world’s single largest employer with about 1.6 million people working in nine zones. Among its many unique gems are the toy train that runs on the Darjeeling Himalayan rail route, the rack railway at Udagamandalam in south India, the busiest narrow gauge network in the world, etc....
Alive! American Plane Makes Miracle Crash-landing on Hudson River
Where: New York, USA January 16, 2009 : There were 150 passengers, three flight attendants and two pilots on board US Airways flight 1549. The plane, an Airbus 320, was on its way to Charlotte in the state of North Carolina from New York’s LaGuardia Airport. Less than a minute after take-off, the pilot reported a ‘double bird strike’ – meaning that birds, probably a flock of geese, had hit both the plane’s jet engines. Passengers could soon see flames near the engines, and they smelt fuel, while power went off inside the cabin....
Volcano Erupts in Alaska
Where: Anchorage, Alaska, USA March 23, 2009 : The 3,100 metre high Mount Redoubt, an active volcano, erupted six times in 36 hours starting Sunday, March 22, 2009. It threw up an ash plume almost 15 kilometres high into the air. Scientists had begun issuing alerts 48 hours earlier as they were recording 40 to 50 earthquakes every hour during that period. Residents of Anchorage, Alaska’s biggest town, which is about 150 kilometres west of the volcano, experienced falls of fine ash dust....
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