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 housfly 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

Last update: 2014.

Table of Contents

 About This Book

 Introduction of Space

 Introducion of Frame of Reference

Introducion of Time

 What Is Time?

 What Is Duration?

 Second Prefixes and Other Units

List of Various Durations

 Introduction of Speed

 Newton's Laws of Motion

 Introduction of Special Relativity

 Time Dilation in Special Relativity

 Length Contraction in Special Relativity

 The Relativity of Simultaneity

 Introduction of Spacetime

 Minkowski Spacetime and Diagrams

 References

 PDF Printing Version