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A typical "portable" dehumidifier can be moved about on built-in casters. A dehumidifier is an air conditioning device which reduces and maintains the level of humidity in the air. [1] This is done usually for health or thermal comfort reasons or to eliminate musty odor and to prevent the growth of mildew by extracting water from the air. It ...
1911: The cloud chamber, the first particle detector, is invented by Charles Thomson Rees Wilson. 1912: The first commercial slot cars or more accurately model electric racing cars operating under constant power were made by Lionel (USA) and appeared in their catalogues in 1912. 1912: The first use of articulated trams by Boston Elevated Railway.
The company was founded by the De'Longhi family in 1902 as a small industrial parts manufacturing workshop. [3] The company incorporated in 1950. [4] Historically a major producer of portable heaters and air conditioners, the company has expanded to include nearly every category of small domestic appliances in the food preparation and cooking, as well as household cleaning and ironing, segments.
1701 — Ole Christensen Rømer made one of the first practical thermometers. As a temperature indicator it used red wine. As a temperature indicator it used red wine. ( Rømer scale ), The temperature scale used for his thermometer had 0 representing the temperature of a salt and ice mixture (at about 259 s).
1708: Meissen porcelain, the first European hard-paste porcelain, by Ehrenfried Walther von Tschirnhaus in Meissen [64] 1810: Theory of Colours by Johann Wolfgang Goethe [65] 1864: Wothlytype uranium-based photographic printing process [66] [67] Early 1900s: The modernist movement Expressionism [68] 1919: Bauhaus by Walter Gropius [69]
The history of Europe is traditionally divided into four time periods: prehistoric Europe (prior to about 800 BC), classical antiquity (800 BC to AD 500), the Middle Ages (AD 500–1500), and the modern era (since AD 1500). The first early European modern humans appear in the fossil record about 48,000 years ago, during the Paleolithic era.
The expansion and contraction of the air caused the position of the water/air interface to move along the tube. This was the first established principle of gas behaviour vs temperature, and principle of first thermometers later on. The idea could predate him even more (Empedocles of Agrigentum in his 460 B.C. book On Nature).
Frigidaire was founded as the Guardian Frigerator Company in Fort Wayne, Indiana, and developed the first self-contained refrigerator, invented by Nathaniel B. Wales and Alfred Mellowes in 1916.