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The editorship of William nicholson (chemist and inventor).

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William Nicholson was a renowed English chemist and writer on " Natural philosophy " and chemistry as well as a translator, journalist, publishers, scientist, inventor , patent Agent and civil engineer.  He was born on 13 December 1753,  in London, United kingdom.  He invented a hydrometer  (  an instrument for measuring the density of liquids) in ,1790 .  In 1800 , after he heard of the invention of the electric battery  by the  Italian physicist  Alessandro Volta,                    Alessandro Volta                     and his battery   he built one of own. Then, William nicholson  had  shown that if electrodes were immersed in water and a current was ,passed bubbles of oxygen and hydrogen were produced . Oxygen bubbles formed on the electrode connected to the positive terminal of the battery and hydrogen bubbles formed on the electrode. With this discovery Nicholson became the first man to produce a chemical reaction by electricity.  In , 1797 Nic
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what is global warming? (pollution,CFCs,landslides, etc.)

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Global warming  is the greatest challenge facing our planet. It is,           infact, the increase in the temperature of the Earth's neon- Surface air.  It is one of the most current and widely discussed factors. It has far-reaching impact on bio-diversity and climatic conditions of the planet. Several current trends clearly demonstrate that global warming is directly impacting on rising sea- levels,  the melting of   ice-caps  and significant world wide climate changes. In short,global warming represents a fundamental threat to all all living things on earth.    Global average temperature rose significantly during the past century. The prevailing scientific  view is that most of the temperature increases since mid-20th century has been caused by increases in atmospheric greenhouse gas concentrations produced by human activity. Most scientists agree that planet's temperature has risen 0.5 degree Celsius since 1990 and will continue to increase at an alarming rate. As a resu
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Biography of E.sridharan(metro men)

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E.sri dharan (metro man)  ka janm keral ke Palakkad Jile ke antargat karukputhur  Namak Sthan mein  12 june, 1932 isvi ko hua.Unka pura naam Ellatualapil Sri dharan hai. Gaon Mein School na hone ke Karan unhone apni Badi bahan ke pass jakar High School Ki Shiksha Besal Evangelical Mission School  me puri ki. Tatpaschat, Victoria college, palghat se Uchch Shiksha prapt ki aur Firr government engineering college  se Civil Engineer ki upadhi prapt ki. Jald hi Unki Kozhikode Namak Nagar istith government Polytechnic  Mein ek pradhayapak Ke Pad per Niyukti Ho Gayi. Kuchh Samay vaha kam karne ke bad unhone Port trust,mumbai  mein ek saal Tak Ek apprentice ke roop Mein kam Kiya aur antath 1954 isvi  Mein Indian Railways Mein engineer Ke Pad per niyukt Ho Gaye.Bharat ke bhutpurva nirvachan aayukt T.N.Seshan unke sahpathi the. E.sridharan ki pahli Niyukti Dakshin Railway Mein Ek Sahayak engineer ke roop Mein hui thi. 8 varsh kam karne ke bad unhen Ek atyant mahatvpurn j
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