The Year-book of Facts in Science and ArtSimpkin, Marshall, and Company, 1872 |
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Стр. 10
... manufactured at Woolwich Arsenal . The 25 - ton guns are each rifled with nine grooves , and throw projectiles with studs as bearings to run in the grooves , which give the rotation that enables these long bolts , weighing from 400 lb ...
... manufactured at Woolwich Arsenal . The 25 - ton guns are each rifled with nine grooves , and throw projectiles with studs as bearings to run in the grooves , which give the rotation that enables these long bolts , weighing from 400 lb ...
Стр. 12
... manufactured , having a small receptacle turned in its base for half a grain of rifle fire - grain powder as a bursting charge , contained in a shalloon bag . A thin disc of iron screws into the cylinder and covers the bursting charge ...
... manufactured , having a small receptacle turned in its base for half a grain of rifle fire - grain powder as a bursting charge , contained in a shalloon bag . A thin disc of iron screws into the cylinder and covers the bursting charge ...
Стр. 16
... manufacture of guns and other objects exposed to severe strains . In ordinary bronze the cohesive strength of the metal is much reduced by the oxidation of the tin , though this action is sought to be re- duced by the use of wooden ...
... manufacture of guns and other objects exposed to severe strains . In ordinary bronze the cohesive strength of the metal is much reduced by the oxidation of the tin , though this action is sought to be re- duced by the use of wooden ...
Стр. 32
... manufactured in Glas- gow . In one week two large consignments left the Clyde . One valued at 1,000l . ( cost price ) , was shipped per the Neptune , steamer , for Havre ; and the other , valued at 2,7007 . , per Loch- earn , for ...
... manufactured in Glas- gow . In one week two large consignments left the Clyde . One valued at 1,000l . ( cost price ) , was shipped per the Neptune , steamer , for Havre ; and the other , valued at 2,7007 . , per Loch- earn , for ...
Стр. 48
... manufacture of steel it is employed to move the cranes and other apparatus . Recent advices from Paris announce that it has been introduced into one of the theatres there for shifting the scenery , the motion when necessary being ...
... manufacture of steel it is employed to move the cranes and other apparatus . Recent advices from Paris announce that it has been introduced into one of the theatres there for shifting the scenery , the motion when necessary being ...
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Стр. 119 - The hypothesis that life originated on this earth through moss-grown fragments from the ruins of another world may seem wild and visionary; all I maintain is that it is not unscientific.
Стр. 119 - It is interesting to contemplate a tangled bank, clothed with many plants of many kinds, with birds singing on the bushes, with various insects flitting about, and with worms crawling through the damp earth, and to reflect that these elaborately constructed forms, so different from each other and dependent upon each other in so complex a manner, have all been produced by laws acting around us.
Стр. 119 - ... we must regard it as probable in the highest degree that there are countless seedbearing meteoric stones moving about through space. If at the present instant no life existed upon this earth, one such stone falling upon it might, by what we blindly call natural causes, lead to its becoming covered with vegetation.