Last Updated：2025/11/20
The Lorentz-Fitzgerald contraction becomes significant only when an object approaches the speed of light, causing a measurable shortening along its direction of motion.
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The Lorentz-Fitzgerald contraction becomes significant only when an object approaches the speed of light, causing a measurable shortening along its direction of motion.
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運動する物体の運動方向における長さの短縮は、物体が光速に近づいたときにのみ顕著になり、相対論的な速度でしか測定できません。
