Physics Notes - Herong's Tutorial Notes - v3.25, by Herong Yang
List of Various Durations
This section lists various durations to give us a sense of scale about time.
The list below provides some reference durations to give us a sense of scale about time:
230 million years - Duration of Solar System orbiting a circle 1 year - Duration of Earth orbiting a circle around Run 27.3 days - Duration of Moon orbiting a circle around Earth 1 day - Duration of Earth rotating a circle around axis 8.28 minutes - Duration of light traveling from Sun to Earth 9.58 s - World record of time for men to run 100 meters 2 s - Duration of a 1-meter long pendulum swing a period 0.75 s - Average duration of between 2 human heartbeats 20 ms - Duration of a hummingbird wing flapping time 3 ms - Duration of a housefly wing flapping time 0.4 ns - Duration of cycle time of my 2012 laptop processor 2.5 fs - Duration of oscillation period of red light
Table of Contents
Introduction of Frame of Reference
Second Prefixes and Other Units
Introduction of Special Relativity
Time Dilation in Special Relativity
Length Contraction in Special Relativity
The Relativity of Simultaneity
Minkowski Spacetime and Diagrams
Introduction of Generalized Coordinates