Special relativity (Lorentz contraction) Calculator

Calculates the length contraction of a body moving with some relative velocity with respect to the observer.

Length of a body L0
    1. m
Relative velocity v
    1. km/s
    2. ≦c

Observed length L
    1.  
    2. m
Velocity ratio to light v/c
    1.  
    2. %
    Special relativity (Lorentz contraction)
    [1-10] /16Disp-Num
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    [1]  2020/02/21 13:28   Male / 40 years old level / A retired person / Very /
    Purpose of use
    Calculating peak time dilation and maximum length contraction for an observer on a starship travelling to tau ceti (11.9 lyr) under 1g of constant acceleration/deceleration
    Comment/Request
    Great calculator.
    [2]  2020/01/30 08:42   Male / 60 years old level or over / An engineer / Very /
    Purpose of use
    To calculate the angle contraction of the end mirrors of a Michelson Interferometer to help correct the flaws in Hicks' analysis of the expected fringe shifts in MMX type interferometers. Hicks correctly points out that there is angle contraction of mirrors in the horizontal plane, & mentions a possible effect in the vertical plane, but severely underestimates the effect(s)(ie on the fringe shift signal).
    [3]  2019/10/26 19:40   Male / 20 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    Low velocity length contraction calculations. Pocket calculator cannot deal with such small numbers.
    [4]  2019/02/02 02:40   Male / Under 20 years old / High-school/ University/ Grad student / A little /
    Purpose of use
    I'm trying to create a formula for virtual negative mass at lagrangian points.
    Comment/Request
    Though this is a useful calculator I would also like to see a gravitational time dilation calculator
    [5]  2018/09/14 13:26   Female / Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    Making number crunching easier on the mind
    [6]  2018/09/14 13:24   Female / Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    Comparing answers to work questions
    [7]  2018/05/12 09:25   Male / 50 years old level / Self-employed people / Very /
    Purpose of use
    To find hard mathematical data to support Fermi''s Paradox. Also to have hard data to throw back at UFO enthusiasts.
    Comment/Request
    None.
    [8]  2018/03/26 08:11   Male / Under 20 years old / High-school/ University/ Grad student / Useful /
    Purpose of use
    school
    [9]  2018/02/16 07:08   - / - / - / Very /
    Purpose of use
    Studies
    Bug report
    A spacecraft is moving with the speed of 10percent that of light .what is the fractional change in length due to the lorentz contraction?
    [10]  2018/01/14 03:25   Male / Under 20 years old / High-school/ University/ Grad student / Useful /
    Purpose of use
    Check work on AP physics sheet.

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