Of the bacterial isolates found in the Arctic that are able to degrade PCBs, none used compounds such as 2-chlorobiphenyl, 3-chlorobiphenyl, camphor, citronellol, cymene, dehydroabietic acid, limonene, methanol, n-hexadecane, pentachlorophenol, phenol, or pinene as primary growth substrates (Master and Mohn 1998).
In the 20th century, demand for electricity led to the consideration of geothermal power as a generating source. Prince Piero Ginori Conti tested the first geothermal power generator on 4 July 1904, at the same Larderello dry steam field where geothermal acid extraction began. It successfully lit four light bulbs. Later, in 1911, the world's first commercial geothermal power plant was built there.
1 1954 Solar Cells-Gerald Pearson, Calvin Fuller and Daryl Chapin invented the first solar battery. 2  A solar battery converts the sun's energy to electricity. 3  In 1954, Gerald Pearson, Calvin Fuller and Daryl Chapin invented the first solar battery. 1881 - Carl Gassner invented the first commercially successful dry cell battery (zinc-carbon cell). 2  1899 - Waldmar Jungner invented the first nickel-cadmium rechargeable battery. 3  1901 Alkaline Storage-Thomas Alva Edison invented the alkaline storage battery.