useful carrying capacity
31Ecological economics — right|300px|thumb|The three pillars ofsustainabilityEcological economics is a transdisciplinary field of academic research within economics that aims to address the interdependence between human economies and natural ecosystems. Its distinguished …
32Energy development — Schematic of the global sources of energy in 2006 2007 …
33A Short History of Progress — is a book length essay penned by Ronald Wright and published in 2004. It was originally read by the author as a series of hour long Massey Lectures given in each of five different cities across Canada and broadcast on the CBC Radio program, Ideas …
34Hemoglobin-based oxygen carriers — At the beginning of 20th century excellent work of Landsteiner and co authors combine with significant progress in fields of heart and circulation physiology initiated development of modern transfusion medicine allowing that blood transfusion… …
35Failure theory (material) — v · d · e Materials failure modes Buckling · Corro …
36Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… …
37petroleum refining — Introduction conversion of crude oil into useful products. History Distillation of kerosene and naphtha The refining of crude petroleum owes its origin to the successful drilling of the first oil well in Titusville, Pa., in 1859. Prior to… …
38Boeing CH-47 Chinook — CH 47 Chinook Field artillery section sling loading an M198 howitzer for airlift by a CH 47 Chinook Role …
39Economy of North Korea — Economic centre of North Korea Currency North Korean won Fiscal year …
40Theoretical ecology — Mathematical models developed in theoretical ecology predict complex food webs are less stable than simple webs.[1]:75–77[2]:64 …
