Grid Alternatives receives equipment donations from solar panel and inverter manufacturers such as SunPower and Enphase. They have a portable loud-speaker system, and there is an inverter, as you call it, at the transmitter. We can use automobile batteries, and the inverter will give us 110 AC for a while, until the batteries run down.
The ancient Greeks have made many influential contributions to western civilization. These contributions, which are also the achievements of ancient Greece, include certain things in the areas of philosophy, art and architecture, and math and science.
Also, physics, mathematics, biology, and all other fields that developed out of Greece may still be in their primitive forms. Greece had a profound influence on today's culture! Greek philosophy marked the beginning of organized Western thought. From this logic developed along with mathematics, the sciences (from biology to physics and cosmology), political theory, later on psychology, and much more. Early theories of evolution and atomic theory began in Ancient Greece.