21 Oct : Bulb was ignited forever

With latest technology, you can switch on the bulb with the help of your phone. But there was a time when the bulb was lightened for the first time. Thomas Edison devised a workable electric light at his laboratory today in 1879. It took 14 months of testing with an incandescent electric light bulb that lasted for 13½ hours.  Edison was not the first man to create incandescent light. The English scientist Humphrey Davy built a powerful electric lamp in the early 1800s. But Edison wanted to create a lamp that lasted longer. His invention also required less power than … Continue reading 21 Oct : Bulb was ignited forever

1 Aug : Breathing component of life was discovered

We all breathe Oxygen but don’t know how it came into existence. It was not that easy to identify what gas is responsible for life ? Today in 1774, British scientist Joseph Priestley solved the puzzle.  He used a magnifying glass to focus the sun’s rays on a sample of mercury oxide (HgO) to discover that heating this compound produced a gas, oxygen (O2). In this environment a mouse could live four times longer than normal. Theories based on Priestley’s work underpin modern chemistry. Although Priestley is often credited with discovering this new type of “air”, German-Swede Wilhelm Scheele made … Continue reading 1 Aug : Breathing component of life was discovered

28 July : Air tight containers also have a history

All of us use air tight containers these days as lunch boxes, but do you know this idea is as old as 70 years. These are called Tupperware. The mind behind these tupperwares was of Earl Silas Tupper who was born today in 1907. He developed plastic containers used in households to contain food and keep it airtight. Earl Tupper invented the plastic for Tupperware already in 1938, and in 1949, Tupperware introduced the ‘Wonderlier Bowl’ that gave a start to a revolutionary range of kitchen utensils. #Hindi  आप में से कई लोग Air Tight lunch boxes का इस्तेमाल करते … Continue reading 28 July : Air tight containers also have a history