The earth has a mass of 5.97 x 1024 kilograms... a big number and one that really matters because that is all the matter we have got.


Forces of Life: The Botanic Man, Chapter 2 (p. 24), Crown Publishers. 1979


The earth has a mass of 5.97 x 1024 kilograms... a big number and one that really matters because that is all the matter we have got.

The earth has a mass of 5.97 x 1024 kilograms... a big number and one that really matters because that is all the matter we have got.

The earth has a mass of 5.97 x 1024 kilograms... a big number and one that really matters because that is all the matter we have got.

The earth has a mass of 5.97 x 1024 kilograms... a big number and one that really matters because that is all the matter we have got.