Special Relativity

Home > Physics > Modern Physics > Special Relativity

The theory that describes how time and space are relative to the observer's frame of reference and how this affects the way objects move and interact.

Lorentz transformation: The mathematical equations used to describe how measurements of space and time change from one observer to another moving at a constant velocity.
Time dilation: The observation that time appears to pass slower for an object in motion relative to an observer at rest.
Length contraction: The observation that objects in motion appear to be shorter in the direction of motion relative to an observer at rest.
Relativistic energy and momentum: The equations that describe how energy and momentum change in special relativity, including the concept of mass-energy equivalence (E=mc^2).
Relativistic Doppler effect: The change in frequency and wavelength of light due to the relative motion between the source and the observer.
Twin paradox: A thought experiment that illustrates the effects of time dilation and how they can result in two observers experiencing different amounts of elapsed time.
Lorentz-FitzGerald contraction: The hypothesis that objects physically contract in the direction of motion due to interactions between charge and ether.
Michelson-Morley experiment: An experiment designed to measure the motion of the Earth through the ether, which led to the conclusion that ether did not exist and helped to confirm special relativity.
Velocity addition: The equation used to calculate the velocity of an object relative to a moving observer.
Time travel and causality violations: The implications of special relativity for the ability to travel through time and the importance of causality in maintaining consistency.
The laws of physics are the same for all observers in uniform motion relative to one another.: The topic refers to the principle that the fundamental laws of physics, including those of motion and electromagnetism, are universally valid and apply equally to all observers who are moving at a constant velocity relative to each other.
The speed of light in a vacuum is the same for all observers, regardless of their motion or the motion of the source of the light.: The principle that the speed of light in a vacuum is constant and independent of the observer's motion or the motion of the light source, as stated by special relativity.
"In physics, the special theory of relativity, or special relativity for short, is a scientific theory of the relationship between space and time."
"The laws of physics are invariant (identical) in all inertial frames of reference (that is, frames of reference with no acceleration)." "The speed of light in vacuum is the same for all observers, regardless of the motion of light source or observer."
"In Albert Einstein's 1905 treatment, the theory is presented as being based on just two postulates."
"The laws of physics are invariant (identical) in all inertial frames of reference (that is, frames of reference with no acceleration)."
"The speed of light in vacuum is the same for all observers, regardless of the motion of light source or observer."
"The special theory of relativity [...] is a scientific theory of the relationship between space and time."
"The laws of physics are invariant (identical) in all inertial frames of reference."
"The laws of physics are invariant (identical) in all inertial frames of reference."
"The laws of physics are invariant (identical) in all inertial frames of reference (that is, frames of reference with no acceleration)."
"In Albert Einstein's 1905 treatment, the theory is presented as being based on just two postulates."
"The laws of physics are invariant (identical) in all inertial frames of reference." "The speed of light in vacuum is the same for all observers, regardless of the motion of light source or observer."
The paragraph does not provide information about general relativity.
The paragraph does not provide information about the impact on the concept of time.
The paragraph does not provide information about specific applications.
The paragraph does not provide information about additional theories.
The laws of physics are invariant (identical) in all inertial frames of reference.
The paragraph does not provide information about the nature of space.
"The speed of light in vacuum is the same for all observers, regardless of the motion of light source or observer."
The paragraph does not mention specific experiments or observations.
The paragraph does not provide information about the impact on our understanding of the universe.