Measures and scales (orders of magnitude)

Whenever we read news articles we are bombarded with series of numbers, usually large ones ("The government spend millions of dollars on helping the poor").
The same happens when reading scientific materials ("The earth is millions of kilometers away from the Sun.").

What do those numbers mean? What do they represent? Most of the time, we are missing a sense of scale to evaluate the true significance of such numbers.

This group is about trying to make a sense of those numbers. It is also a way to put into perspective what the article we are reading is actually saying.

Money: large numbers

Most people have no real understanding of how much represent large amounts of money. We lack reference points. Such reference points will progressively be added below:

Measures and scales (orders of magnitude) Handbook.

Handbook for the group Measures and scales (orders of magnitude).