“The Knowledge Library”

Knowledge for All, without Barriers…

An Initiative by: Kausik Chakraborty.

“The Knowledge Library”

Knowledge for All, without Barriers…

 

An Initiative by: Kausik Chakraborty.

“The Knowledge Library”

Knowledge for All, without Barriers……….
An Initiative by: Kausik Chakraborty.

The Knowledge Library

Why umbrella is always black?

This is because black absorbs heat faster and better than other colors. At the same time, it emits heat in a faster manner. So that, the outside color of the umbrella is coated with black and the inside with silver to make the inside of the umbrella cool.

 

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