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Aluminium (Aluminum in North American English) is a chemical element; it has symbol Al and atomic number 13. Aluminium has a density lower than that of other common metals, about one-third that of steel. It has a great affinity towards oxygen, forming a protective layer of oxide on the surface when exposed to air. Aluminium visually resembles ...
- Aluminum (U.S., Canada)
- 13
- Silvery gray metallic
- group 13 (boron group)
Himeji Castle (姫路城, Himeji-jō) ( [çimeʑiꜜʑoː] ⓘ) is a hilltop Japanese castle complex situated in Himeji, a city in the Hyōgo Prefecture of Japan. The castle is regarded as the finest surviving example of prototypical Japanese castle architecture, comprising a network of 83 rooms with advanced defensive systems from the feudal ...
- 1333, 1300 (Himeyama fort/castle), 1581 (expansion), 1601–1609 (expansion), 1617–1618 (expansion)
- 46.4 m (152 ft)
- Intact, restoration work for preservation recently completed
- Azuchi-Momoyama castle
Window shutter. A window shutter is a solid and stable window covering usually consisting of a frame of vertical stiles and horizontal rails (top, centre and bottom). Set within this frame can be louvers (both operable or fixed, horizontal or vertical), solid panels, fabric, glass and almost any other item that can be mounted within a frame.
The Great Wall of China ( traditional Chinese: 萬里長城; simplified Chinese: 万里长城; pinyin: Wànlǐ Chángchéng, literally "ten thousand li long wall") is a series of fortifications that were built across the historical northern borders of ancient Chinese states and Imperial China as protection against various nomadic groups from ...
The Forbidden City ( Chinese: 紫禁城; pinyin: Zǐjìnchéng) is a palace complex in Dongcheng District, Beijing, China, at the center of the Imperial City of Beijing. It is surrounded by numerous opulent imperial gardens and temples including the 22 ha (54-acre) Zhongshan Park, the sacrificial Imperial Ancestral Temple, the 69 ha (171-acre ...
YES stroke alphabetical order. The YES stroke alphabetical order, also called YES stroke-order sorting, briefly YES order or YES sorting, is a Chinese character sorting method based on a stroke alphabet and stroke orders. [1] [2] It is a simplified stroke-based sorting method free of stroke counting and grouping. [3]
XOR gate. XOR gate (sometimes EOR, or EXOR and pronounced as Exclusive OR) is a digital logic gate that gives a true (1 or HIGH) output when the number of true inputs is odd. An XOR gate implements an exclusive or ( ) from mathematical logic; that is, a true output results if one, and only one, of the inputs to the gate is true.
