Kalmia species are used as food plants by the larvae of some lepidopteran species including Coleophora kalmiella which feeds exclusively on Kalmia.hey grow in acidic soils, with different species in wet acid bog habitats (K. angustifolia, K. polifolia) and dry, sandy soils (K. ericoides, K. latifolia). Kalmia was named by Linnaeus to honour his friend the botanist Pehr Kalm, who collected it in eastern North America during the mid-18th century.
Tesla electrified Niagara Falls!! In 1895, the Westinghouse Company and Nicola Tesla built the first hydroelectric alternating current system at Niagara Falls. Tesla was determined that the awesome power of the Falls should be harnessed to the awesome power of polyphase alternating current.
1879 After many experiments, Thomas Edison invented an incandescent light bulb that could be used for about 40 hours without burning out. By 1880 his bulbs could be used for 1200 hours. 1879 Electric lights (Brush arc lamps) were first used for public street lighting, in Cleveland, Ohio.California Electric Light Company, Inc. in San Fransicso was the first electric company to sell electricity to customers.The company used two small Brush generators to power 21 Brush arc light lamps.821 The first electric motor was invented by Michael Faraday. 1826 Georg Ohm defined the relationship between power, voltage, current and resistance in âOhms Law.â. 1831 Using his invention the induction ring, Michael Faraday proved that electricity can be induced (made) by changes in an electromagnetic field.