Energy and power.

Originally appeared as articles in the Sept. 1971 issue of Scientific American.Energy and power, by C. Starr.--Energy in the universe, by F. J. Dyson.--The energy resources of the earth, by M. K. Hubbert.--The flow of energy in the biosphere, by D. M. Gates.--The flow of energy in a hunting society, by W. B. Kemp.--The flow of energy in an agricultural society, R. A. Rappaport.--The flow of energy in an industrial society, by E. Cook.--The conversion of energy, by C. M. Summers.--The economic geography of energy, by D. B. Luten.--Energy and information, by M. Tribus and E. C. McIrvine.--Decision-making in the production of power, by M. Katz.--Bibliography (p. 139-140