Search results
Results from the WOW.Com Content Network
A variety of rulers A carpenter's rule Retractable flexible rule or tape measure A closeup of a steel ruler A ruler in combination with a letter scale. A ruler, sometimes called a rule, scale or a line gauge or metre/meter stick, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" along an edge of the device. [1]
For example, if a ruler's smallest mark is 0.1 cm, and 4.5 cm is read, then it is 4.5 (±0.1 cm) or 4.4 cm to 4.6 cm as to the smallest mark interval. However, in practice a measurement can usually be estimated by eye to closer than the interval between the ruler's smallest mark, e.g. in the above case it might be estimated as between 4.51 cm ...
Japanese government officials and foreign representatives at the Japan Mint in 1871. Sanjo Sanetomi in the center is wearing traditional kariginu.Another Japanese man is in a Western-style military uniform and topknot.
The major sources depicting the life and rule of Marcus Aurelius are patchy and frequently unreliable. The most important group of sources, the biographies contained in the Historia Augusta, claimed to be written by a group of authors at the turn of the 4th century AD, but it is believed they were in fact written by a single author (referred to here as 'the biographer') from about 395. [4]
A chemical element is a chemical substance whose atoms all have the same number of protons.The number of protons is called the atomic number of that element. For example, oxygen has an atomic number of 8, meaning each oxygen atom has 8 protons in its nucleus.
Serpentinite from the Maurienne valley, Savoie, French Alps Sample of serpentinite from the Golden Gate National Recreation Area, California, United States Chromitic serpentinite (7.9 cm (3.1 in) across), Styria Province, Austria.