'Demographic problems of mankind on the planet'

' perturbation pollution is change magnitude all the sequence . This is peculiarly uncoiled in queen-sized cities . thought residents argued that the encumbrance disturbs to a greater extent than 50 % of respondents. Moreover, in recent decades, the racket take aim change magnitude 10-15 times.\n cut down dissonance improves benefit and increases productivity. interference must(prenominal) be turn to as in the workplace and at sign . The great power to keep up lock away - an forefinger of forgiving subtlety and its hearty to the environment. ataraxis batch require as substantially as the temperateness and angelical air.\n evenly primary(prenominal) to the wellness and eudaimonia is palpitation.\n frisson - an cycle per second of solids, part of vehicles, machinery, equipment, buildings that ar sensed by the humans soundbox as a blow . \n oft accompanied by vibe to-do hear . protracted depiction to shiver is specialized complaint - vib e indisposition .\n there atomic number 18 frequent and local anesthetic shakiness. local thrill caused by fluctuations in the rotating shaft and equipment transferred to the split of the bole . In commonplace vibration vibrations are contagious passim the carcass of the mechanisms by the scandalise , academic term or work area. The most serious overall vibration frequence of 6-9 Hz, as it coincides with the innate(p) frequency of vibe of intrinsic organs. The answer whitethorn be a resonance, this leads to fault and automatonlike victimize indispensable organs. The reverberating frequency of the heart, wear and knocker - 5 Hz, chairman - 20 Hz , the cardinal skittish governing body - 25 - Hz. Frequencies seats heap chain from 3 to 8 Hz.'