"Length contraction is the phenomenon that a moving object's length is measured to be shorter than its proper length..."
The physical contraction of an object in the direction of its motion as predicted by Special Relativity.
Galilean Relativity: A basic overview of the Newtonian concept of relative motion.
Einstein's Postulates: The two postulates of Einstein's Special Theory of Relativity.
Spacetime Diagrams: A graphical representation of the effects of relativity.
Lorentz Transformations: Mathematical equations that describe the relationship between coordinates in one reference frame and another reference frame moving at a constant velocity.
Time Dilation: The slowing down of time for an observer in motion relative to a stationary one.
Length Contraction: A decrease in the length of an object as it moves relative to an observer.
The Twin Paradox: A thought experiment involving two twins, one of whom travels at a high speed away from Earth and then returns; the traveling twin ages less than the stationary twin.
Black Holes: Regions of spacetime where the gravitational pull is so strong that nothing can escape, including light.
General Theory of Relativity: Einstein's theory that explains gravity as the curvature of spacetime.
Gravitational Time Dilation: The slowing down of time near massive objects due to their gravitational pull.
Frame Dragging: The dragging of spacetime around a rotating massive object.
Cosmological Expansion: The increase in the distance between galaxies due to the expansion of the universe.
Special Relativity Length Contraction: This type of length contraction occurs due to the relative motion between an observer and the object being observed. If an object moves relative to an observer at a significant speed, its length appears shorter than its actual length.
General Relativity Length Contraction: This type of length contraction occurs due to the curvature of spacetime caused by the presence of mass/energy. The curvature of spacetime affects the length of an object, causing it to appear shorter or longer than its actual length.
Object Length Contraction: The length of an object can also contract due to its own motion. This occurs when an object is moving at a significant speed, causing its length to appear shorter than its actual length.
Spacetime Length Contraction: This type of length contraction occurs due to the warping of spacetime caused by gravity. The gravity of massive objects can distort spacetime, affecting the path of objects traveling through it and causing their length to appear shorter than their actual length.
"It is also known as Lorentz contraction or Lorentz–FitzGerald contraction..."
"...(after Hendrik Lorentz and George Francis FitzGerald)..."
"...and is usually only noticeable at a substantial fraction of the speed of light."
"Length contraction is only in the direction in which the body is travelling."
"For standard objects, this effect is negligible at everyday speeds..."
"...and can be ignored for all regular purposes..."
"...only becoming significant as the object approaches the speed of light relative to the observer."
"...which is the length as measured in the object's own rest frame."
"It is also known as Lorentz contraction or Lorentz–FitzGerald contraction..."
"(after Hendrik Lorentz and George Francis FitzGerald)..."
"...at a substantial fraction of the speed of light."
"Length contraction is only in the direction in which the body is travelling."
"For standard objects, this effect is negligible at everyday speeds..."
"...only becoming significant as the object approaches the speed of light relative to the observer."
"...object's length is measured to be shorter than its proper length..."
"...and can be ignored for all regular purposes..."
"For standard objects, this effect is negligible at everyday speeds..."
"It is also known as Lorentz contraction or Lorentz–FitzGerald contraction..."
"...only becoming significant as the object approaches the speed of light relative to the observer."