mould resistance
51Dutch East Indies — Dutch colony ← …
52Windsurfing — A windsurfer tilts the rig and carves the board to perform a planing jibe (downwind turn) close to shore at Maui, Hawaii …
53Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry …
54LED circuit — In electronics, the basic LED circuit is an electrical circuit used to power a light emitting diode (LED). It consists of up to four components connected in series: a voltage source, a current limiting resistor, an LED, and optionally a switch to …
55Building insulation — refers broadly to any object in a building used as insulation for any purpose. Whilst the majority of insulation in buildings is for thermal purposes, the term also applies to acoustic insulation, fire insulation, and impact insulation. Often an… …
56Teak furniture — Teak is used to make outdoor furniture, boats, and other things which require resistance to the elements. Teak is used for outdoor furniture because of its natural durability in extreme weather conditions and because of its relative rarity. Being …
57Evolutionary history of life — Although evidence of early life is scarce and often difficult to interpret, it appears that life appeared on Earth relatively soon (on the geologic time scale) after the planet had cooled enough for liquid water to be present. The dominant theory …
58Jane Thomas — was a native of Chester County, Pennsylvania, and the sister of the Reverend John Black, of Carlisle, the first president of Dickinson College. She was married about 1740, to John Thomas, supposed to be a native of Wales, who had been brought up… …
59Union of Christendom — • Includes the Catholic Church together with the many other religious communions which have either directly or indirectly, separated from it Catholic Encyclopedia. Kevin Knight. 2006. Union of Christendom Union of Christend …
60English language spelling reform — For hundreds of years, many groups and individuals have advocated spelling reform for English. Spelling reformers seek to make English spelling more consistent and more phonetic, so that spellings match pronunciations and follow the alphabetic… …
