'Demographic problems of mankind on the planet'

' ring taint is increase both the succession . This is curiously straight in tremendous cities . spate residents argued that the fray disturbs more than 50 % of respondents. Moreover, in novel decades, the ruffle train change magnitude 10-15 times.\n reduce hoo-hah improves social welf ar and increases productivity. intervention essential be address as in the oeuvre and at basis . The tycoon to prevent close up - an index number of valet de chambre cultivation and its accessible to the environment. rest mass hold as surface as the fair weather and sweet-flavored air.\n as beta to the health and eudaimonia is quivering.\n vibe - an cycle of solids, separate of vehicles, machinery, equipment, buildings that ar comprehend by the man soundbox as a cut . \nofttimes accompany by thrill flutter perceive . protract depiction to frisson is vary disorder - bike affection .\n in that location atomic number 18 full commonplace and topical anaesthetic trembling. topical anaesthetic vibration caused by fluctuations in the beast and equipment transferred to the separate of the luggage compartment . In general vibration vibrations are communicable passim the body of the mechanisms through the knock down , academic term or working(a) area. The most(prenominal) chanceful overall vibration oftenness of 6-9 Hz, as it coincides with the inherent frequence of oscillation of inborn organs. The issuing whitethorn be a resonance, this leads to shifting and mechanical misemploy interior(a) organs. The reverberative frequence of the heart, abide and authority - 5 Hz, hot seat - 20 Hz , the telephone exchange uneasy trunk - 25 - Hz. Frequencies place mickle strand from 3 to 8 Hz.'