Saturday, 12 December 2020

3 POINTS ON COMPACT DISC

 



1. Launched in 1982, compact discs store sound as a sequence of millions of tiny pits, which capture the sound wave as a series of digital codes.

2. As the disc spins, the CD player uses a laser beam to read the sequence of pits, and recreates the original waveform from the digital codes.

3. Once amplified, this wave form drives a loudspeaker, reproducing the sound.

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KHADI : FROM GANDHI'S MY EXPERIMENTS WITH TRUTH TO ECO -FRIENDLY FASHION FOR A GREENER EARTH

    When we revisit Mahatma Gandhi’s My Experiments with Truth, the story of khadi is not just about clothing but about awakening. Gandhi na...