# Time dilation and length contraction

Rossi and Hoag, Physical Review 57, pg Rossi and Hall, Physical Review 59, pg Rasetti, Physical Review 60, pg Various measurements of the lifetimes of muons. These effects are extremely valuable in describing some of the most complicated phenomena encountered. This article will try to explain what length contraction and time dilation are, and the difference between them.

What is Length Contraction? Length contraction is a concept discussed under the theory of relativity. This can be explained using the special theory of relativity for ease of understanding. To understand the length contraction and time dilation students must have background knowledge in the special theory of relativity.

The special theory of relativity only deals with the inertial frames. Although we cannot even remotely understand the special theory of relativity in a few lines of explanation, there are some useful concepts that can be helpful in describing the length contraction and time dilation.

The fundamental of special relativity is that, no objects that are moving in inertial frames can have relative velocities greater than the speed of light.

This is a very significant term in special relativity. The length contraction arises from the Lorentz transformation equations.

## Gravitational time dilation - Wikipedia

The proper length of an object is the length measured in a frame, which is still with respect to the object. The improper length is the length, which is measured from a frame, which the object is moving with a relative velocity of V. In the special theory of relativity, the improper length is always smaller than or equal to the proper length.

What is Time Dilation? The proper time is defined as the time measured by an observer who is not moving relative to the event. The improper time is the time measured by an observer who is moving with relative velocity V from or to the event. Using the Lorentz transformation equations, it can be shown that the time measured in the event frame is always smaller than or equal to the time measured by the moving frame.

Thereby, the proper time is smaller than or equal to the improper time. What is the difference between Time Dilation and Length Contraction?In special relativity time dilation and length contraction are not material effects, they are physical effects due to travel within a four dimensional spacetime.

The mechanisms of the clocks and the structures of measuring rods are irrelevant. • Time dilation is an expansion of time measured from the moving frame, but the length contraction is a contraction of the length. • The term γ connects linearly to the time formula but connects inversely to the length formula. Sep 30,  · In , Einstein put forth his theory of special relativity, noting that the failed Michelson-Morley experiment and the phenomena of length contraction and time dilation would all be explained if.

This interactive Minkowski diagram is based on the conventional setting of c = webkandii.com along the axis may be interpreted as: t unit = second, then d unit = lightsecond, or alternatively, d unit = m, t .

Length Contraction The length of any object in a moving frame will appear foreshortened in the direction of motion, or contracted. The amount of contraction can be calculated from the Lorentz transformation.

The length is maximum in the frame in which the object is at rest. then the time dilation can be expanded in a binomial . Buy The Arrow Of Time: A Voyage Through Science To Solve Time's Greatest Mystery on webkandii.com FREE SHIPPING on qualified orders.

Time dilation and length contraction | Physics Forums