Nechikwata chedu cheR&D chemainjiniya akangwara, taunza ultra-nyarara magetsi akamira madhesiki  <40dB. Aya madhesiki akanyatsogadzirwa akamira anoteedzera bvunzo kuti uvimbise kugutsikana kwako uye kugara uine hutano hwakanaka. Mune yakakosha lab - imba yakanyarara, mainjiniya edu anoedza madhesiki akamira ane mutoro we265Ibs, nzvimbo yedu yekushandira yaigara yakanyarara uye yakagadzikana, ine ruzha <40 dB.

Chii chinonzi 40 dB? Vanhu vazhinji havazivi mwero wenzwi uye kuti decibel inonzwika sei. Ngatitarisei mamwe manzwi akajairika kuti tinzwisise zviri nani mazinga eruzha akachengeteka uye kuti decibel ine ruzha rwakadii chaizvo.

0 dB inzwi rakapfava zvikuru ringanzwiwa nenzeve yemunhu—chimwe chinhu chisinganzwiki, seshizha rinodonha.
10 dB: Kufema
20 dB: Kutinhira mashizha
30 dB: Zevezera
40 dB: Refeigerator
50 dB: Kunaya kuri pakati nepakati
60 dB: Hurukuro
70 dB: Mota Guta traffic
80 dB: Rori
90 dB: Hardryer
100 dB: Helicopter
110 dB: Trombone
120 dB: Siren yemapurisa
130 dB: Jet injini
140 dB: Fireworks