वायु दाब
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vayu dab ko prati ikaee kshetraphal par p dane vale bal ke roop mean mapate haian. isaka spasht tatpary hai ki kisi die ge sthan tatha samay par vahaan ki hava ke stambh ka sampoorn bhar. isaki ikaee ‘milibar’ kahalati hai. vayu dab ke kshaitij vitaran ko dekhane par dharatal par vayu dab ki 4 spasht petiyaan paee jati hai.
- bhoomadhyarekhiy nimn vayu dab ki peti - dharatal par bhoomadhy rekha ke donoan or 50 akshaanshoan ke bich nimn vayu dab ki peti ka vistar paya jata hai. shaant vatavaran ke karan is peti ko shaant peti ya dolajhoom bhi kahate haian.
- uposhn katibandhiy udy vayu dab ki petiyaan - bhoomadhy rekha se 300-350 akshaanshoan par donoan golarddhoan mean udy vayu dab ki petiyoan ki upasthit paee jati hai. udy vayu dab vali is peti ko ‘ashv akshaansh’ kahate haian.
- upadhruviy nimn vayu dab ki petiyaan - donoan golarddhoan mean 600 se 650 akshaanshoan ke bich nimn vayu dab ki petiyaan paee jati haian.
- dhruviy uchch vayu dab ki petiyaan - yah petiyaan dhruvoan par paee jati haian. in kshetroan mean nyoonatam tapaman ke karan dhruviy uchch vayu dab ki petiyoan ka nirman hota hai.
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tika tippani aur sandarbh
sanbandhit lekh