Lorentz factor, length contraction & time dilation
γ = 1 / √(1 − β²), where β = v/c. Drag the speed toward the speed of light.
Lorentz factor γ
100 m ship measures
1 year on board =
γ = 1 / √(1 − β²), where β = v/c. Drag the speed toward the speed of light.