
Science and Health
Ian Guedes, Mar 19th, 2025

Does the Earth Spin? Why Can't You Feel It?
Understand why we don't feel the Earth spinning at 1,670 km/h in this article. Explore the physical principles, such as inertia and centrifugal force, behind Earth's rotation and discover fascinating facts about this phenomenon.
The Earth spins around itself at an incredible speed of 1,670 km/h at the Equator. But why don't we feel this rotation? The answer lies in physics and three main factors:
- Inertia: Inertia is the tendency of a moving object to keep moving and a stationary object to stay stationary. The Earth, with its enormous mass, has great inertia, resisting any change in its state of motion.
- Centrifugal force: Earth's rotation generates a centrifugal force that "pushes" everything outward from the planet. This force is what keeps us on the ground, balancing the force of gravity that pulls us toward the center of the Earth.
- Size of the Earth: In comparison to the size of the Earth, we are very small. Changes in speed and direction during rotation are imperceptible to our senses.
Fun Facts:
- If the Earth were to suddenly stop spinning, everything on its surface would be launched at thousands of kilometers per hour.
- Earth's rotation is responsible for the alternation between day and night.
- Earth's rotation is gradually slowing down over time.
Share this article with your friends on WhatsApp and Facebook and discover together the mysteries of Earth's rotation!
Remember:
- Science is fascinating and is present in everything around us.
- Sharing knowledge is essential for individual and collective growth.
- Keep exploring the world and uncovering its mysteries!
Profissional especializado em soluções digitais, com formação em Psicologia e Análise e Desenvolvimento de Sistemas, além de especialização em Arquitetura de Sistemas e MBA em Gestão Empresarial pela FGV. Sempre em busca de aprendizado contínuo.