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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 ...
1895: Wilhelm Conrad Röntgen invented the first radiograph . 1897: Surgical masks made of cloth were developed in Europe by physicians Jan Mikulicz-Radecki at the University of Breslau and Paul Berger in Paris, as a result of increasing awareness of germ theory and the importance of antiseptic procedures in medicine. [452]
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 first "medical" X-ray, by Wilhelm Röntgen (1895) Max Planck is considered the father of the quantum theory. Sculpture of Einstein's 1905 E = mc 2 formula at the 2006 Walk of Ideas, Berlin Geiger-Müller counter Electron microscope constructed by Ernst Ruska in 1933; two years after his first prototype Induced nuclear fission reaction
The first wristwatches were made in the 16th century. Elizabeth I of England had made an inventory in 1572 of the watches she acquired, all of which were considered to be part of her jewellery collection. [174] The first pocketwatches were inaccurate, as their size precluded them from having sufficiently well-made moving parts. [175]
Harry Mendell, U.S. – invented the first digital sampling synthesizer; Joy Mangano (born 1956), U.S. – household appliances; Anna Mangin (1844–1931) – American inventor, educator, caterer and women's rights campaigner; Charles Mantoux (1877–1947), France – Mantoux test (tuberculosis) Guglielmo Marconi (1874–1937), Italy – radio ...
English inventions and discoveries are objects, processes or techniques invented, innovated or discovered, partially or entirely, in England by a person from England. Often, things discovered for the first time are also called inventions and in many cases, there is no clear line between the two. Nonetheless, science and technology in England ...
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.