Erich Gnaiger
C. Wright Mills
Joseph Nye of Harvard University developed the concept of soft power. Joseph Nye also wrote two books regarding this, the first being Bound to Lead: The Changing Nature of American Power released in 1990. He developed the concept further in his second book, Soft Power: The Means to Success in World Politics, in 2004.
Watt developed the concept of Horsepower and the unit of power the Watt. He did not invent the steam engine but did make significant improvments to the Newcomen steam engine. Watt introduced a design enhancement, the separate condenser, which avoided this waste of energy and radically improved the power, efficiency, and cost-effectiveness of steam engines.
C. Wright Mills
Efficiency is output power divide by input power.
Efficiency = useful output power / input power
Efficiency = (output power/input power) x 100%
Efficiency = useful output power / input power
The formula of efficiency is power output divided by the power input.
use of MHD generator's concept in power generation will lead the power sector to increase the efficiency to approx.80%,specially for thermal power plants whose efficiency lies in 35-40%. as we are knowing that,In MHD power generation kinetic energy or thermal energy is directly converted to electrical energy and also it has no moving parts.so,it is more advantageous.
B.) efficiency
The efficiency is output divided by input.