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2. Lennox International - Wikipedia

   en.wikipedia.org/wiki/Lennox_International

   Previous logo. The company was founded in 1895, in Marshalltown, Iowa, by Dave Lennox, the owner of a machine repair business for railroads. [1] Inventors Ezra William Smith and Ernest Bryant brought their idea for a riveted steel coal-fired furnace to his machine shop to build parts for a prototype.

3. Brushed DC electric motor - Wikipedia

   en.wikipedia.org/wiki/Brushed_DC_electric_motor

   A brushed DC electric motor is an internally commutated electric motor designed to be run from a direct current power source and utilizing an electric brush for contact. Brushed motors were the first commercially important application of electric power to driving mechanical energy, and DC distribution systems were used for more than 100 years ...

4. District heating - Wikipedia

   en.wikipedia.org/wiki/District_heating

   The Spittelau incineration plant is one of several plants that provide district heating in Vienna, Austria. Animated image showing how district heating works. District heating (also known as heat networks) is a system for distributing heat generated in a centralized location through a system of insulated pipes for residential and commercial heating requirements such as space heating and water ...

5. Peter Du Cane - Wikipedia

   en.wikipedia.org/wiki/Peter_Du_Cane

   Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

6. Peter Du Cane Sr. - Wikipedia

   en.wikipedia.org/wiki/Peter_Du_Cane_Sr.

   Peter Du Cane (22 April 1713 – 28 March 1803), a descendant of Jean Du Quesne, the elder and son of Richard Du Cane, M.P., was a leading 18th century British merchant and businessman [1].

7. Carnot cycle - Wikipedia

   en.wikipedia.org/wiki/Carnot_cycle

   A Carnot cycle is an ideal thermodynamic cycle proposed by French physicist Sadi Carnot in 1824 and expanded upon by others in the 1830s and 1840s. By Carnot's theorem, it provides an upper limit on the efficiency of any classical thermodynamic engine during the conversion of heat into work, or conversely, the efficiency of a refrigeration system in creating a temperature difference through ...