“The Knowledge Library”

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An Initiative by: Kausik Chakraborty.
05/12/2022 10:18 AM

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“The Knowledge Library”

Knowledge for All, without Barriers…

 

An Initiative by: Kausik Chakraborty.
Biology Objective Questions On Different Branches🟢Cell Biology Objective Questions (कोशिका एवं कोशिका विभाजन का वस्तुनिष्ठ प्रश्न)🟢Objective Questions and Answers: Animal Tissue(जन्तु ऊतक) 🟢Objective Questions and Answers Digestive system(पाचन-तंत्र) 🟢Objective Questions and Answers Human Blood (मानव रक्त) Part-1🟢Objective Questions and Answers Human Heart (मानव हृदय) 🟢Objective Questions and Answers Excretion system (उत्सर्जन तंत्र) 🟢Objective Questions and Answers Nervous system (तंत्रिका तंत्र) 🟢Objective Questions and Answers Skeleton system (कंकाल तंत्र)🟢 Objective Questions and Answers Endocrine system (अंतःस्रावी तंत्र)🟢Objective Questions on Mineral Resources of India and World (भारत और विश्व के खनिज संसाधन)🟢MCQ On Energy Resources (ऊर्जा संसाधन वस्तुनिष्ठ प्रश्न)🟢Objective Question on Industry of India (भारत के उद्योग)🟢Objective Question on Multipurpose Projects of India (भारत के बहुउद्देशीय परियोजना)🟢Objective Question on Rivers of India (भारत की नदियाँ)🟢Objective Question on National Park and Wildlife Sanctuary in India(राष्ट्रीय उद्यान तथा वन्य जीव अभयारण्य)🟢Objective Questions on Soils of India (भारत की मिट्टियाँ)🟢Objective Questions on Agriculture of India (भारत की कृषि)🟢Objective Questions on Indian Mountains and World Mountains (भारतीय पर्वत और विश्व के पर्वत)🟢Objective Questions on Natural Vegetation of India and World

“The Knowledge Library”

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

The Knowledge Library

Why is “lb” the Abbreviation For Pound?

Mass measures the number of atoms in an object, combined with the density of those atoms. Mass is how much “stuff” is in an object.

Mass isn’t the same as size, though. For example, a helium balloon is much bigger than a lead bullet, but it’s also lighter and less massive.

Weight, on the other hand, measures the pull of gravity on an object. On Earth, mass and weight are closely related. More massive objects tend to weigh more.

Weight changes if the amount of gravity pulling on an object changes. Take yourself, for example. If you weigh 100 pounds on Earth, you would weigh only 16.6 pounds on the moon! That’s because the moon’s gravitational pull is significantly weaker than Earth’s.

If you went to the moon, you wouldn’t have any less “stuff” in you. Your mass would remain the same. Your weight, however, depends on gravity and would be significantly smaller on the moon.

Have you ever noticed that the abbreviation for pound is “lb”? What’s the deal with that? Wouldn’t it make more sense if it were “PO” or “PD”?

For the answer, we have to travel back to ancient Rome. The ancient Romans gave the name “Libra” to a constellation they thought looked like a pair of scales. The astrological sign Libra took its name from this constellation.

When the ancient Romans referred to weight, they used the term libra pondo. Libra meant “weight” or “balance scales,” and pondo meant “pound.” They eventually shortened the phrase to just libra, which they abbreviated “lb.”

Oddly enough, our English word “pound” comes from pondo, but we kept the “lb” abbreviation of libra for “pound.” Weird, right?

There’s just no rhyme or reason as to why the word “pound” was taken from one Latin word but its abbreviation was taken from a different Latin word. It’s just one of the mysteries of language!

 

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