population of rotational level
51agricultural technology — Introduction application of techniques to control the growth and harvesting of animal and vegetable products. Soil preparation Mechanical processing of soil so that it is in the proper physical condition for planting is usually… …
522004 Indian Ocean earthquake and tsunami — 2004 Indian Ocean earthquake Tsunami strikes Ao Nang, Thailand. Date 00:58:53, December 26 …
53Dark matter — Not to be confused with antimatter, dark energy, dark fluid or dark flow. For other uses, see Dark Matter (disambiguation) …
54Nuclear reactor physics — See also: Critical mass Nuclear reactor physics is the branch of science that deals with the study and application of chain reaction to induce controlled rate of fission for energy in reactors. Most nuclear reactors use a chain reaction to induce …
55turbine — /terr bin, buyn/, n. any of various machines having a rotor, usually with vanes or blades, driven by the pressure, momentum, or reactive thrust of a moving fluid, as steam, water, hot gases, or air, either occurring in the form of free jets or as …
56Chiropractic — Intervention A chiropract …
57Carbon dioxide laser — The carbon dioxide laser (CO2 laser) was one of the earliest gas lasers to be developed (invented by Kumar Patel of Bell Labs in 1964 [cite journal last = Patel first = C. K. N. authorlink = C. Kumar N. Patel year = 1964 title = Continuous Wave… …
58star cluster — Astron. a number of stars of common origin held together as a group by gravitational attraction. Cf. globular cluster, open cluster, stellar association. * * * ▪ astronomy Introduction either of two general types of stellar assemblages held… …
59Mosquito control — Mosquitos are generally considered annoying and may also transmit diseases, thus leading to a variety of human efforts to eradicate or reduce their presence. Mosquito control manages the population of mosquitoes to reduce their damage to human… …
60Zaire — This article is about the history of the Democratic Republic of the Congo between 1965 and 1997. For the modern country, see Democratic Republic of the Congo. For other uses, see Zaire (disambiguation). Republic of Zaire¹ République du Zaïre… …
