Radio, Torch, and an Umbrella

As a kid, I used to have a radio, torch, and umbrella. Honestly, I was not a big fan of the latter two but radio. Besides other inventions from the past, the radio surprised me. I learned later in college how it works. Note that this post is purely written out of my memory. Errors... Continue Reading →

The Pairs Of Opposite Colors

We know that black and white are opposite pairs. Can we expand the set of opposite pairs to other colors? Can we find the opposite of red? The answer is easy. We need to remind ourselves of the colors of the rainbow: Red, orange, yellow, green, blue, indigo, violet. This is the sector of the... Continue Reading →

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