Yadda ake riƙe sitiyari daidai
Sau da yawa zaka iya lura da direba wanda yayi kama da malalacin ɗalibi yana zaune a tebur. Yana tallafar kansa da guiwar sa a ƙofar gilashin. Direba yana da kwarin gwiwa kan iyawarsa da cikin motarsa, saboda haka yana riƙe da sitiyari da hannun dama.
Yi la'akari da ƙa'idar da mafi ƙarancin matsayin hannun direba akan sitiyari aka ƙaddara, da kuma wasu dalilan da yasa irin wannan sauka yana da haɗari sosai.
9/15 ko 10/14?
An yi amannar cewa mafi daidai kuma mafi aminci shine zaɓi ka riƙe hannayenka a cikin awanni 9 da 15 ko 10 da 14. Masana kimiya na Japan sun gudanar da bincike don tabbatar ko karyata waɗannan iƙirarin.
Ctionaƙƙwawa ya dogara da ƙoƙarin da ake buƙata don juya sitiyari, don haka matsayin hannu yana tasiri tasirin tuƙi. Kuma shine zaɓi "9 da 15" wanda ke ba da iyakar iko akan sitiyarin motar. Hakanan tasirin wannan tasirin yana shafar kasancewar jakar iska wacce take a tsakiyar sitiyarin.
Masana ilimin kimiyya
Don gwada da'awarsu, masu binciken sun sanya mutane 10 a bayan motar na'urar kwaikwayo da ta fi kama da sitiyarin jirgin sama. Dole ne su riƙe tuƙi a wurare 4 daban-daban - daga mafi kyaun (9 da 15) zuwa inda akwai karkatattun digiri 30 da 60 a dukkan kwatance.
An yi nazarin ƙoƙarce-ƙoƙarcen da mahalarta suka yi a cikin mahimmin gwajin. Matsayin hannun "kwance" a tsaye yana da tasiri. Koyaya, ya kamata a sani cewa wasu daga cikin firikwensin a cikin motar suna rufe hannayensu a cikin wannan matsayin, wanda ke rikitar da direbobi.
Yayin gwajin, an kuma bukaci mahalarta su juya sitiyarin da hannu daya kawai. A wannan yanayin, hannu galibi kan matakin karfe 12 ne, wato, a sama.
Wannan yana da haɗari saboda a irin waɗannan halaye direban bashi da cikakken iko akan tuƙin (koda kuwa yana da ƙarfi sosai), kuma zai iya ji rauni idan an tura jakar iska.
Tsaro akan hanya ya fi muhimmanci fiye da nuna amincewar ku. Babu wani tsarin aminci wanda zai maye gurbin amsar direba a cikin gaggawa.
Tambayoyi & Amsa:
Yadda za a koyi yadda ake juya sitiyarin yayin yin kusurwa? Idan motar ta tsaya tsayin daka, sai sitiyarin ya juya zuwa wajen juyowa, bayan tafiyar ta dawo. Lokacin yin tsalle-tsalle, juya zuwa skid kuma rage magudanar ruwa (tuɓar ta baya) ko ƙara gas (a kan tuƙin gaba).
Yadda za a kiyaye hannuwanku a kan dabaran daidai? Matsayin su yakamata ya kasance a matakin karfe 9 da 3 akan fuskar agogo. Lokacin juyawa, yana da kyau ka matsa hannunka maimakon ketare su. Don mayar da sitiyarin zuwa matsayi madaidaiciya, ya isa ya sake shi kaɗan.
