O’z umri davomida ko’plab kemalar halokatining shohidi bo’lgan ingliz admirali Frensis Bofort 1806 yili shamol kuchining quruqlik ob’yektlari va dengiz to’lg’onishiga ta’sirini baholaydigan shkala o’ylab topdi. 12-balli Bofort shkalasi o’ta dolzarb ixtiro edi. Chunki dengizchilar dengizga chiqishdan oldin qaysi shamolni kuchli, qaysisini dovul deb hisoblashda bir qarorga kelisha olmas edi. Chunki “kuchli” so’zini har kim o’zicha tushunadi. Bofort shkalasi bo’yicha esa: 0 ball — sokinlik, 3 ball — shabada (bayroq hilpiray boshlaydi), 6 ball — kuchli shamol (daraxtlarning shoxi sinadi), 10 ball — shtorm (shamol daraxtlarni ildizi bilan qo’porib tashlaydi). 12 ball — dovul. Demak, 8 balli shamolda dengizga chiqib bo’lmaydi.
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Nimaga 1 soat 60 daqiqaga teng?
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Nimaga yong‘in yuqoriga qarab tarqaladi?
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Nimaga suv qaynaganda bug‘ hosil bo‘ladi?
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Nimaga 1-yanvar Yangi yil bayrami?
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Nimaga boks ringi kvadrat shaklda bo‘ladi?
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Nimaga triatlon musobaqalarida turli sport turlari birlashtiriladi?
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Nimaga Badminton to’pi yengilroq?
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Abxala
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“Abulmuslimnoma”
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