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- https://phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/27%3A__Special_Relativity/27.4%3A_Implications_of_Special_RelativitySpecial relativity changed the way we view space and time and showed us that time is relative to an observer.
- https://phys.libretexts.org/Bookshelves/Conceptual_Physics/Introduction_to_Physics_(Park)/05%3A_Unit_4-_Modern_Physics_-_Quantum_Mechanics_Special_Relativity_and_Nuclear_and_Particle_Physics/13%3A_Special_Relativity/13.04%3A_Length_ContractionAll observers agree upon relative speed. Distance depends on an observer’s motion. Proper length is the distance between two points measured by an observer who is at rest relative to both of the point...All observers agree upon relative speed. Distance depends on an observer’s motion. Proper length is the distance between two points measured by an observer who is at rest relative to both of the points. Earth-bound observers measure proper length when measuring the distance between two points that are stationary relative to the Earth. Length contraction is the shortening of the measured length of an object moving relative to the observer’s frame.
- https://phys.libretexts.org/Courses/Prince_Georges_Community_College/General_Physics_I%3A_Classical_Mechanics/62%3A_Special_Relativity/62.03%3A_Length_ContractionAnother consequence of the postulates is that a moving body will appear to be shortened in the direction of motion; this effect is called length contraction. The length of a moving body will appear to...Another consequence of the postulates is that a moving body will appear to be shortened in the direction of motion; this effect is called length contraction. The length of a moving body will appear to be shortened by this same factor of γ : L=L0γ Here L0 is the length of the body when it is at rest, and is called the proper length. Since γ≥1, the moving body will be shorter when it is moving.
- https://phys.libretexts.org/Bookshelves/University_Physics/University_Physics_(OpenStax)/University_Physics_III_-_Optics_and_Modern_Physics_(OpenStax)/05%3A__Relativity/5.05%3A_Length_ContractionLength contraction is the decrease in observed length of an object from its proper length L0 to length L when its length is observed in a reference frame where it is traveling at speed v. The pro...Length contraction is the decrease in observed length of an object from its proper length L0 to length L when its length is observed in a reference frame where it is traveling at speed v. The proper length is the longest measurement of any length interval. Any observer who is moving relative to the system being observed measures a length shorter than the proper length.
- https://phys.libretexts.org/Courses/Prince_Georges_Community_College/PHY_2040%3A_General_Physics_III/07%3A__Special_Relativity/7.4%3A_Implications_of_Special_RelativitySpecial relativity changed the way we view space and time and showed us that time is relative to an observer.
- https://phys.libretexts.org/Bookshelves/Modern_Physics/Book%3A_Spiral_Modern_Physics_(D'Alessandris)/1%3A_The_Special_Theory_of_Relativity_-_Kinematics/1.2%3A_Length_ContractionIf the time interval between two events depends on the relative motion of the observer, Einstein realized that the spatial separation between the events must also be observer-dependent.
- https://phys.libretexts.org/Bookshelves/Classical_Mechanics/Variational_Principles_in_Classical_Mechanics_(Cline)/17%3A_Relativistic_Mechanics/17.03%3A_Special_Theory_of_RelativityEinstein's Special Theory of Relativity.
- https://phys.libretexts.org/Bookshelves/University_Physics/Book%3A_Introductory_Physics_-_Building_Models_to_Describe_Our_World_(Martin_Neary_Rinaldo_and_Woodman)/24%3A_The_Theory_of_Special_Relativity/24.04%3A_Length_ContractionTime dilation implies “length contraction”. When an object is measured in a frame of reference that is at rest relative to the object, the length of the object, L , is called the “rest length” or the...Time dilation implies “length contraction”. When an object is measured in a frame of reference that is at rest relative to the object, the length of the object, L , is called the “rest length” or the “proper length” of the object. If that object is moving relative to an observer, the observer will measure the object to be shorter, and have a “contracted length”.
- https://phys.libretexts.org/Courses/Muhlenberg_College/MC%3A_Physics_121_-_General_Physics_I/05%3A__Relativity/5.05%3A_Length_ContractionLength contraction is the decrease in observed length of an object from its proper length L0 to length L when its length is observed in a reference frame where it is traveling at speed v. The pro...Length contraction is the decrease in observed length of an object from its proper length L0 to length L when its length is observed in a reference frame where it is traveling at speed v. The proper length is the longest measurement of any length interval. Any observer who is moving relative to the system being observed measures a length shorter than the proper length.
- https://phys.libretexts.org/Courses/Muhlenberg_College/MC_%3A_Physics_213_-_Modern_Physics/01%3A__Relativity/1.05%3A_Length_ContractionLength contraction is the decrease in observed length of an object from its proper length L0 to length L when its length is observed in a reference frame where it is traveling at speed v. The pro...Length contraction is the decrease in observed length of an object from its proper length L0 to length L when its length is observed in a reference frame where it is traveling at speed v. The proper length is the longest measurement of any length interval. Any observer who is moving relative to the system being observed measures a length shorter than the proper length.
- https://phys.libretexts.org/Courses/Berea_College/Introductory_Physics%3A_Berea_College/24%3A_The_Theory_of_Special_Relativity/24.04%3A_Length_ContractionTime dilation implies “length contraction”. When an object is measured in a frame of reference that is at rest relative to the object, the length of the object, L , is called the “rest length” or the...Time dilation implies “length contraction”. When an object is measured in a frame of reference that is at rest relative to the object, the length of the object, L , is called the “rest length” or the “proper length” of the object. If that object is moving relative to an observer, the observer will measure the object to be shorter, and have a “contracted length”.
