Orders of Magnitude

Physics is the most universal of all sciences. It ranges from the study of Particle Physics at the tiniest lengths to cosmology on the scale of the observable Universe.

For Example:-

The apparent diameter of the observable universe is of the order of 1026 m

The diameter of the neutrino is estimated to approximately the order of 10-24 m


These numbers are really beyond comprehension, but orders of magnitude help us to discuss them, and give use a sense of scale:-

The video below demonstrates the orders of magnitude, both zooming in and out from human scale.