Sulfonamides What are Sulfonamides. Sulfonamides are a group of man-made (synthetic) medicines that contain the sulfonamide chemical group. They are also called sulfa drugs (sometimes spelled as sulpha drugs or sulphonamides). Sulfanilamide was the first sulfonamide developed in 1906, although it was not used as an antimicrobial until the late 1930s.
Steam rising from the Nesjavellir Geothermal Power Station in Iceland. Geothermal energy (from the Greek roots geo, meaning earth, and thermos, meaning heat) is energy made by heat inside the Earth's crust. It's clean and sustainable.Although the Sun does heat the surface of the Earth, heat from inside the Earth is not caused by the Sun.team rising from the Nesjavellir Geothermal Power Station in Iceland. Geothermal energy (from the Greek roots geo, meaning earth, and thermos, meaning heat) is energy made by heat inside the Earth's crust. It's clean and sustainable.
Geothermal energy is the energy stored in the form of heat beneath the earth's surface. Geothermal energy is a carbon free, renewable, sustainable form of energy that provides a continuous, uninterrupted supply of heat that can be used to heat homes and office buildings and to generate electricity.eep geothermal energy in operation. Locations of existing geothermal operation. Geothermal energy plants are normally located in regions where there is volcanic activity, such as in Iceland and New Zealand. The first electricity to be generated from geothermal was at Larderello in northern Italy in 1904.