aikaraoitus
Aikaraoitus is a Finnish term that translates to "time dilation" in English. It refers to the phenomenon where time passes at different rates for different observers depending on their relative motion or gravitational potential. This concept is a fundamental consequence of Albert Einstein's theories of relativity, specifically special relativity and general relativity.
In special relativity, time dilation occurs due to relative velocity. An observer moving at a significant fraction
General relativity introduces gravitational time dilation. In regions of stronger gravitational fields, time passes more slowly