Dimdima
Online Children's Magazine from India
Dimdima
Online Children's Magazine from India
THE magnetron is an electronic tube that was developed at England's Birmingham University in 1940 for use in military radar.
One of the companies that began producing magnetron tubes was the American firm, Raytheon. One day one of the company's engineers, Percy Spencer, while testing a magnetron tube, reached into his pocket for a chocolate bar. He found that it had melted into a soft, gooey mass. He had sensed no heat. He wondered if radiation from the magnetron tube had melted the chocolate. He brought some kernels of corn and pointed the magnetron at them. The corn popped. Next he aimed it at an egg. It cooked so fast that it exploded.
Percy Spencer had discovered instant cooking.
Not long afterwards, the company produced Radar Range, the world's first microwave oven - a device whose main part is the magnetron.
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Dimdima is the Sanskrit word for ‘drumbeat’. In olden days, victory in battle was heralded by the beat of drums or any important news to be conveyed to the people used to be accompanied with drumbeats.
Bharatiya Vidya Bhavan
K. M Munshi Marg,
Chowpatty, Mumbai - 400 007
email : editor@dimdima.com
Bharatiya Vidya Bhavan
505, Sane Guruji Marg,
Tardeo, Mumbai - 400 034
email : promo@dimdima.com
Dimdima.com, the Children's Website of Bharatiya Vidya Bhavan launched in 2000 and came out with a Printed version of Dimdima Magazine in 2004. At present the Printed Version have more than 35,000 subscribers from India and Abroad.