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Two inline skate wheels with different durometer – 85A and 83A Digital Shore hardness tester. The Shore durometer is a device for measuring the hardness of a material, typically of polymers. [1] Higher numbers on the scale indicate a greater resistance to indentation and thus harder materials. Lower numbers indicate less resistance and softer ...
The Janka hardness test (English: / ˈ dʒ æ ŋ k ə /; [1] German:), created by Austrian-born American researcher Gabriel Janka (1864–1932), measures the resistance of a sample of wood to denting and wear.
Albert Ferdinand Shore (September 4, 1876 – January 17, 1936) was an American metallurgist and the inventor of the Shore durometer. He won the Elliott Cresson Medal. [1] Shore was born in New York City. He invented the first quadrant durometer in 1915 to measure the hardness of polymers and other elastomers. [2]
Almost all mountains in the list are located in the Himalaya and Karakoram ranges to the south and west of the Tibetan plateau. All peaks 7,000 m (23,000 ft) or higher are located in East, Central or South Asia in a rectangle edged by Noshaq (7,492 m or 24,580 ft) on the Afghanistan–Pakistan border in the west, Jengish Chokusu (Tuōmù'ěr Fēng, 7,439 m or 24,406 ft) on the Kyrgyzstan ...
Nauru highest point in Nauru * Mafia Island: Unnamed point: 53 m 174 ft Tanzania * Barbuda: Unnamed point: 44.5 m 146 ft [2] Antigua and Barbuda * Tongatapu: Mata ki 'Eua: 28 m 92 ft Tonga * Likiep Atoll: Unnamed point: 10 m 33 ft Marshall Islands highest point in Marshall Islands * Addu Atoll: Unnamed point: 5.1 m 17 ft Maldives highest point ...
Within its 2.02 km 2 territory, there is a difference of 140 m between its highest and lowest points, giving a ratio of 69 m for every km 2. In Australia 's 7,686,850 square kilometres (2,967,910 sq mi) area, there is only a 2,244 metres (7,362 ft) difference between the highest and lowest points, which gives a ratio of 292 micrometres (0.0115 ...
For example, (as of 8 February 2020) the Duge Bridge is the highest bridge in the world, but only the tenth tallest. This bridge spans a deep river gorge. This bridge spans a deep river gorge. The bridge's two towers, built on the rims of the gorge, are 269 m (883 ft) tall, but due to the depth of the river gorge between the towers, the deck ...
The Chinese municipality of Chongqing, which is the largest city proper in the world by population, comprises a huge administrative area of 82,403 km 2, around the size of Austria. However, more than 70% of its 30-million population are agricultural workers living in a rural setting. [6] [7]