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    20 Great Discoveries in 500 Words Each: In 500 words, #12
    20 Great Discoveries in 500 Words Each: In 500 words, #12
    20 Great Discoveries in 500 Words Each: In 500 words, #12
    Ebook61 pages37 minutes

    20 Great Discoveries in 500 Words Each: In 500 words, #12

    By Nietsnie Trebla

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    About this ebook

    Ever wanted to uncover history's greatest scientific and technological discoveries—without wading through dense textbooks? This book distills the most groundbreaking breakthroughs into clear, concise, and engaging reads.

     

    ? What's Inside?

    ? Revolutionary Scientific Breakthroughs – From the discovery of oxygen to the groundbreaking work on radioactivity, explore the moments that reshaped our understanding of the universe and human health.

    ? Life-Changing Inventions – Learn how insulin transformed medicine, how germ theory revolutionized public health, and how quantum computing is redefining the future.

    ? And So Much More – Each topic is explained in just 500 words, making it perfect for quick yet impactful learning.

     

    ? Read Smarter, Not Harder

    Forget dense textbooks—dive straight into knowledge with clarity and simplicity. Each chapter is a fast yet enriching read, perfect for the curious mind.

     

    ? Who's It For?

    ✅ Students & Lifelong Learners – Gain valuable insights without the fluff.

    ✅ Trivia & Science Enthusiasts – Fuel your curiosity with bite-sized brilliance.

    ✅ Busy Readers – Learn something new in just a few minutes a day.

     

    ? Start your journey now with the book series that's been translated into multiple languages and loved by readers worldwide!

    LanguageEnglish
    PublisherShelf Indulgence
    Release dateFeb 1, 2025
    ISBN9781991325501
    20 Great Discoveries in 500 Words Each: In 500 words, #12

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      Book preview

      20 Great Discoveries in 500 Words Each - Nietsnie Trebla

      Quick Introduction

      Don't worry, I've only got a few words to say — you are just a minute away from knowledge!

      The In 500 Words series is authored by Nietsnie Trebla, translated into 10 languages by lingoXpress, and published and distributed worldwide by Shelf Indulgence.

      The Discovery of Gravity (Isaac Newton)

      The discovery of gravity is often attributed to Sir Isaac Newton, an English mathematician, physicist, and astronomer, whose work laid the foundation for classical mechanics. Gravity, a fundamental force of nature, is the attraction between objects with mass. Although various notions about gravity existed prior to Newton, it was him who formulated the law of universal gravitation, revolutionizing our understanding of the physical world.

      The story famously begins with an apple. According to popular lore, in 1666, Newton was sitting under an apple tree in his garden when he witnessed an apple fall to the ground. This seemingly mundane event triggered profound questions about the nature of motion and the forces that govern the movement of objects. Newton began to ponder why the apple fell straight down, rather than sideways or upward. This simple observation led him to consider the force that would cause it to fall, which he later identified as gravity.

      Before Newton, the prevailing theories on motion were largely derived from Aristotle, who believed that heavier objects fell faster than lighter ones. However, Galileo had already begun to challenge these ideas through experiments, showing that all objects fall at the same rate regardless of their mass. Building on this, Newton sought to define the underlying principles that governed these observations.

      In 1687, Newton published his seminal work, Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), in which he articulated his laws of motion and the universal law of gravitation. Newton's law proposed that every particle of matter in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. This formula can be expressed as F = G(m1*m2)/r², where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses of the objects, and r is the distance between their centers.

      Newton's insights extended beyond terrestrial experiences; he applied his law of gravitation to celestial bodies, explaining how planets orbit the sun and how moons orbit planets. This established a clear connection between earthly phenomena and heavenly motions, unifying the mechanics of both. Newton's work not only explained why objects fall to the ground but also described the gravitational forces acting on the moons, planets, and even the trajectory of comets.

      The significance of Newton's discovery cannot be overstated. His law of universal gravitation provided a comprehensive framework for understanding both earthly and astronomical phenomena. It was essential to the advancement of science, influencing future thinkers, such as Albert Einstein, who later expanded on Newtonian principles with his theory of general relativity.

      Today, gravity remains a key focus of scientific inquiry, and while parts of Newton's laws have been refined over the centuries, the genius of his initial discovery endures. The law of gravitation not only answers fundamental questions about the

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