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A water heater that maintains desired temperature by turning the applied power on and off (as opposed to continuously varying electrical voltage or current) based on temperature feedback is an example application of bang–bang control. Although the applied power switches from one discrete state to another, the water temperature will remain ...
As tropical fish, bettas prefer a water temperature of around 75–82 °F (24–28 °C), but have been observed surviving temporarily at extremes of 56 °F (13 °C) to 95 °F (35 °C). When kept in colder climates, aquarium heaters are recommended, as colder water weakens their immune system and makes them susceptible to certain diseases.
Gas water heaters have an exhaust vent or one to two exhaust pipes on the top, and still require electric power for electronics, sensing and ignition. A three-phase, 21 kW, 400-volt tankless water heater in Europe, with new European color coding for three-phase power. There are also heaters that use several single-phase circuits instead.
The ocean park holds the Guinness world record for being the largest aquarium in the world, it also had the largest aquarium window in the world according to the Guinness World Records, a single acrylic panel measuring 39.6 by 8.3 metres (130 by 27 ft). The Journey of Lights parade won the 2018 Thea Award for outstanding achievement - live show.
Water heating is a heat transfer process that uses an energy source to heat water above its initial temperature. Typical domestic uses of hot water include cooking, cleaning, bathing, and space heating. In industry, hot water and water heated to steam have many uses. Domestically, water is traditionally heated in vessels known as water heaters ...
The aquarium was named "Osaka Aquarium Kaiyukan" by the general public and opened in 1990. [2] The number of visitors reached 1 million on the 40 days of the opening and 2 million on the 101 days, The final number of visitors during the year reached 5.6 million, surpassing the national record held at that time Tokyo Sea Life Park and being the ...
An infrared heater or heat lamp is a heating appliance containing a high-temperature emitter that transfers energy to a cooler object through electromagnetic radiation. Depending on the temperature of the emitter, the wavelength of the peak of the infrared radiation ranges from 750 nm to 1 mm. No contact or medium between the emitter and cool ...
Richard Dawkins FRS FRSL (born 26 March 1941) [ 3 ] is a British evolutionary biologist, zoologist, science communicator and author. [ 4 ] He is an emeritus fellow of New College, Oxford, and was Professor for Public Understanding of Science in the University of Oxford from 1995 to 2008. His 1976 book The Selfish Gene popularised the gene ...
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