which yielded great quantities of pitch
21List of unusual units of measurement — For units of measure primarily used in countries where English is not the main language, see the article specific to that country, a list of which can be found in the systems of measurement article. An unusual unit of measurement is a unit of… …
22mosaic — mosaically, adv. /moh zay ik/, n., adj., v., mosaicked, mosaicking. n. 1. a picture or decoration made of small, usually colored pieces of inlaid stone, glass, etc. 2. the process of producing such a picture or decoration. 3. something resembling …
23Mosaic — /moh zay ik/, adj. of or pertaining to Moses or the writings, laws, and principles attributed to him: Mosaic ethics. Also, Mosaical. [1655 65; < NL Mosaicus, equiv. to LL Mos(es) MOSES + aicus, on the model of Hebraicus Hebraic] * * * Surface… …
24human evolution — Evolution of modern human beings from nonhuman and extinct hominid forms. Genetic evidence points to an evolutionary divergence between the lineages of humans and the great apes (Pongidae) on the African continent 5–8 million years ago. The… …
25fluid mechanics — an applied science dealing with the basic principles of gaseous and liquid matter. Cf. fluid dynamics. [1940 45] * * * Study of the effects of forces and energy on liquids and gases. One branch of the field, hydrostatics, deals with fluids at… …
26petroleum — petroleous, adj. /peuh troh lee euhm/, n. an oily, thick, flammable, usually dark colored liquid that is a form of bitumen or a mixture of various hydrocarbons, occurring naturally in various parts of the world and commonly obtained by drilling:… …
27Crusades — • Expeditions undertaken, in fulfilment of a solemn vow, to deliver the Holy Places from Mohammedan tyranny. Catholic Encyclopedia. Kevin Knight. 2006. Crusades Crusades …
28Long Depression — Not to be confused with long term depression. The Long Depression was a worldwide economic crisis, felt most heavily in Europe and the United States, which had been experiencing strong economic growth fueled by the Second Industrial Revolution… …
29information processing — Acquisition, recording, organization, retrieval, display, and dissemination of information. Today the term usually refers to computer based operations. Information processing consists of locating and capturing information, using software to… …
30comet — cometary /kom i ter ee/, cometic /keuh met ik/, cometical, adj. cometlike, adj. /kom it/, n. Astron. a celestial body moving about the sun, usually in a highly eccentric orbit, consisting of a central mass surrounded by an envelope of dust and… …
