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We often visualize space as a 3D grid, even though this is a frame-dependent oversimplification when we consider the concept of spacetime. The question of whether space and time are discrete or continuous, and whether there’s a smallest possible length scale, is still unanswered.
Throughout the history of science, one of the prime goals of making sense of the Universe has been to discover what’s fundamental. Many of the things we observe and interact with in the modern, macroscopic world are composed of, and can be derived from, smaller particles and the underlying laws that govern them. The idea that everything is made of elements dates back thousands of years, and has taken us from alchemy to chemistry to atoms to subatomic particles to the Standard Model, including the radical concept of a quantum Universe.
- Publisher: Forbes
- Date: 2018-06-14
- Author: Ethan Siegel
- Twitter: @forbes
- Citation: Web link
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