The Universal Preceptor: Being a General Grammar of Arts, Sciences, and Useful Knowledge ...A. Phelps, 1826 - 312 страница |
Из књиге
Страница 50
... weight of which , exclusive of that of their carriages , amounts to 183,000lbs . On the second deck , thirty twenty four pounders ; each of which weighs about 5,100lbs . , and therefore altogether , 153,000lbs .; and the weight of the ...
... weight of which , exclusive of that of their carriages , amounts to 183,000lbs . On the second deck , thirty twenty four pounders ; each of which weighs about 5,100lbs . , and therefore altogether , 153,000lbs .; and the weight of the ...
Страница 52
... weight of the ball , and the quantity and quality of the powder ; but a ball goes the fartherest when the piece is elevated to an angle of 45 degrees ; and there are tables constructed for every degree of elevation . In battle , it is ...
... weight of the ball , and the quantity and quality of the powder ; but a ball goes the fartherest when the piece is elevated to an angle of 45 degrees ; and there are tables constructed for every degree of elevation . In battle , it is ...
Страница 53
... weight , to a distance of five or six miles , but it is now found that the largest convenient size is a 48 pounder ; those carrying 24lb . shot are preferred . Ship guns are from 48 to 3 pounders ; guns in forts and castles are from 18 ...
... weight , to a distance of five or six miles , but it is now found that the largest convenient size is a 48 pounder ; those carrying 24lb . shot are preferred . Ship guns are from 48 to 3 pounders ; guns in forts and castles are from 18 ...
Страница 54
... the fender is the fulcrum , the coal is the weight or resistance , and the hand is the power to raise and Overcome it . 181. The force with which any body moves is call- ed its momentum . If a boy walk at the 54 MECHANICAL POWERS .
... the fender is the fulcrum , the coal is the weight or resistance , and the hand is the power to raise and Overcome it . 181. The force with which any body moves is call- ed its momentum . If a boy walk at the 54 MECHANICAL POWERS .
Страница 55
... weight of the boy , go with the same degree of swiftness , or with the same veloci- ty as the boy , he will go against the wall with twice the momentum of the boy in every instance . Hence , it is a general rule , which is not to be ...
... weight of the boy , go with the same degree of swiftness , or with the same veloci- ty as the boy , he will go against the wall with twice the momentum of the boy in every instance . Hence , it is a general rule , which is not to be ...
Друга издања - Прикажи све
Чести термини и фразе
acid acre ancient angle animals aqueous humour Asia atmosphere atoms blood bodies Britain Cæsar called carbon carbonic acid cause chief chyle circle clouds colours combined consists copper countries degrees distance divided division duce earth effect electrical England English equal equator fall fire fluid force four glass globe half hatchment heat heavens Hence inches inhabitants insects iron islands Julius Cæsar Jupiter kinds lacteals land lens light lines matter Mercury metals miles millions mineral moon motion move nations nature nerves north pole object Obs.-The ocean optic nerve orbit oxygen pass phenomena pistil plants pounds principle produce proportion quadrupeds rays round Saturn savage nations sense side soil solid Sophism south pole species stamens stars stone substance sulphur sulphuric acid supposed surface Syllogism telescope tion tribes various vegetables velocity vibrations whole winds