Dylan Neri

Are we finally beginning to understand gravity?

Claudia de Rham explores the true nature of this fundamental force as she struggles against received wisdom to get a new theory of ‘massive gravity’ recognised

Engraving of Isaac Newton pondering the force of gravity. [Alamy] 
issue 13 April 2024

The question of why things fall has puzzled our species since we crawled out from the darkness of our primitive ignorance. Aristotle was the first to offer a serious theory. He proposed that each of the four elements (earth, air, fire, water) had a natural place to which it innately wanted to return. Fire and air rise because their place is in the heavens, whereas earth and water return to the Earth.

Aristotelian philosophy had such a profound impact on human thought that this view prevailed for nearly 2,000 years. Only with the Renaissance and the ideas of Kepler and Galileo was it finally challenged; and only by standing on the shoulders of these giants was Isaac Newton able to make probably the greatest intellectual leap ever.

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