Length Contraction
Length contraction is a phenomenon from Einstein's theory of special relativity, which states that objects moving at high speeds relative to an observer will appear shorter in the direction of their motion. Imagine a spaceship traveling close to the speed of light; to an observer at rest, the spaceship seems compressed. This effect occurs because, according to relativity, time and space are interconnected—an increase in speed alters how we perceive length. However, the object's length remains normal for someone moving with it. Length contraction becomes significant only at speeds approaching the speed of light.
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Length contraction is a concept from Einstein's theory of relativity, which states that objects moving at very high speeds appear shorter in the direction of motion when observed from a stationary point. For example, if a spaceship travels close to the speed of light, an observer on Earth would measure it as being shorter than it would be at rest. This effect is only noticeable at speeds close to the speed of light and is a fundamental aspect of how space and time behave under the influence of high velocities.