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22 godz. temu · The density of stishovite is 4.287 g/cm 3, which compares to α-quartz, the densest of the low-pressure forms, which has a density of 2.648 g/cm 3. The difference in density can be ascribed to the increase in coordination as the six shortest Si–O bond lengths in stishovite (four Si–O bond lengths of 176 pm and two others of 181 pm) are ...
22 godz. temu · The Volkswagen Tiguan (German pronunciation: [ˈfɔlksˌvaːgŋ̍ ˈtiːɡu̯aːn]) is a series of cars produced by German manufacturer Volkswagen since 2007, sitting between the smaller T-Roc and the larger Touareg in the company's crossover SUV range. The first generation was based on the PQ46 platform, while the second generation, released in 2016, utilizes the Volkswagen Group MQB A2 platform.
22 godz. temu · The density difference between lead (11.32 g/cm 3) and bismuth (9.78 g/cm 3) is small enough that for many ballistics and weighting applications, bismuth can substitute for lead. For example, it can replace lead as a dense material in fishing sinkers.
