Length Contraction Calculator Introduction to Length Contraction Length Contraction is a phenomenon predicted by Albert Einstein's Special Theory of Relativity. It describes how the length of an object, when measured

Scientific Unit Converter 1. Select Physical Quantity Quantity: 2. Enter Value and Select Units Value to Convert: From Unit: To Unit: Convert Reset Fields Reset All Conversion Result Conversion Steps

Laser Brightness (Irradiance) Calculator Calculator Instructions Theory & Formulas Laser Power (P): mW (milliwatts) W (watts) Initial Beam Diameter at Aperture (D₀): Enter diameter in millimeters (mm). Full Angle Beam

Gravitational Potential Energy U = mgh Solve for Energy (U) Solve for Mass (m) Solve for Height (h) Energy (U) Joules (J) Kilojoules (kJ) Mass (m) kilogram (kg) gram (g)