21 C Religion / boloji
Its the season of lamps and lights across the world. Last month we had Deepavali, the five-day Indian festival that celebrates the return of Lord Rama to Ayodhya after killing the demon Ravana. Sometime later in the West carved pumpkins came out with lamps inside them to celebrate Halloween. Both these festivals come around in the same week.
Oxygen, with O as the symbol and 8 as the atomic number, has been part of the gaseous cover enveloping the earth that is scientifically estimated to have come into existence about 4.6 billion years ago.But it was only in 1773 and 1774 that two scientists, Carl Wilhelm Scheele, a German-Swedish chemist, and Joseph Priestly, an English chemist, independently isolated it while it was left to a third scientist, Antoine Lavoisier of France, to give it a name and an identity three years later.