Atomic mass, symbol and atomic number Uranium is a natural element with the element symbol U and atomic number 92. In the periodic table it belongs to the actinoids with an atomic mass of 238.02 u. The chemical element discovered by Martin Heinrich Klaproth in 1789 is radioactive and is in a solid state of aggregation at room temperature.
Mass density? Definition and explanation ... The mass density (symbol: Greek letter Rho) is the quotient of mass and volume and can be determined for solids, liquids and gases. The unit used for solids is usually kg.cm -3. The bulk density depends essentially on two factors.
The modern man ... The Homo sapiens, or modern man, is the last living species of the genus Homo. Last living ancestor or evolutionary side branch was probably the Homo floresiensis, and not as often suspected of Neanderthals. Homo Sapiens (from Latin 'homo' = human and 'sapiens' = wise) translated means "the wise man", a term coined by Carl von Linné in Systema Naturae.
What are run-of-river power plants? Definition: A run-of-river power plant is a technical facility used for power generation, which is operated by means of continuously flowing water in rivers or large streams. The construction of a run-of-river power plant is only worthwhile in places where the water flow and the flow speed of the water are high enough.
Character Name: Mammoth Latin Name: Mammuthus Class: Mammals Size: up to 4m Length Weight: 5 - 15t Age: 40 - 70 years Appearance: approx. 2m long tusks, brown coat Sex Dimorphism: Yes Nutrition Type: Herbivore (herbivor) Food: Grasses , Leaves, plant material Origin: Siberia Sleep / wake cycle: active in the daytime Habitat: cold steppe (tundra) natural enemies: no sexual maturity:?