relativistic effects

Relativistic effects occur when objects move close to the speed of light, causing time to slow down and lengths to contract for the moving object compared to a stationary observer. This means a high-speed spaceship's clock will run slower from Earth's perspective, and its dimensions appear shorter in its direction of travel. Additionally, the energy and mass of the object increase as speed approaches light speed. These effects are predicted by Einstein's special relativity and become significant only at speeds near the speed of light, fundamentally altering our understanding of time, space, and energy at high velocities.