Solar power accounts for less than 2 percent of U.S. electricity but could make up more than that if the cost of electricity generation and energy storage for use on cloudy days and at nighttime were cheaper. Continue reading “New material, manufacturing process use sun’s heat for cheaper renewable electricity”
Energy and machines in Antiquity (Part II)
Mechanical Devices
It is seldom possible to determine exactly when a particular mechanical
device was discovered or invented, but in general the chronological development
was as follows. Continue reading “Energy and machines in Antiquity (Part II)”
Energy and machines in Antiquity (Part I)
Here we present the same-titled Chapter from the book ‘Ancient Technology’, by John W. Humphrey (Greenwood Press) Continue reading “Energy and machines in Antiquity (Part I)”