Sunday, 10 Sep 2023
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By Upali Jayasinghe
The electric light, one of the everyday conveniences that mostly affects our lives was invented by Thomas Alva Edison in 1879. He was neither the first nor the only person trying to invent an incandescent light bulb.
In fact, some historians claim there were over 20 inventors of incandescent lamps prior to Edison’s version.
However, artificial light production has...
The third and final solar eclipse of 2019 will occur as an annular solar eclipse on December 26. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the Sun for a viewer on Earth, when the disk of the Moon appears to cross in front of the disk of the sun.
An annular solar eclipse occurs when the moon passes in front...