-
Articles/Ads
Article SCIENTIFIC INTELLIGENCE. ← Page 6 of 6
Note: This text has been automatically extracted via Optical Character Recognition (OCR) software.
Scientific Intelligence.
this machine . They crossed the Seine in a short time , and after having drawn no in a platoon on the opposite side , they re-entered the river , and in the middle cf it set up a fire of musketry well sustained , and charged with bnvonets , although they bad under them at least 21 feet of water . It will carry , besides the weight of the men , a burthen of five myriagrammes . ROLLING MACHINE .
Mr- HAZLEDI ! -: E , of Salop , has made an improvement in rolling iron , copper , lead , & c . into plates or sheets . Instead of a single pair of rollers , Mr . I-Iazledine proposes that three or four pairs should be erected adjoining to each other , with guards of metal to deliver the lead , & c . from one roller to the next : the cylinders of each pair of rollers are to be placed at different proportional distances , so as that a bar of metal being flatted in its passage through the first pair , may be still further expanded in going through the
second , and so on till it is delivered out of the last , of the requisite thinness . Thus by a single operation , a bar of copper may be reduced to a sheet ; which in the common way requires several repeated operations . VENTILATOR FOR PRESERVING CORN ON SHIP-BOARD . THIS machine , invented by Thomas Smith , Esq . consists of a forcing pump , with annexed perforated tubes , by which fresh air is diffused to every part of the bulk .
DURABILITY OF SHIPPING .. As the consumption of ship-timber for several years back has rendered it now an object of very serious attention , from the apprehension of an absolute scarcity thereof , it must be a matter of much satisfaction to perceive that the Great Seal , a little time back , was affixed to a patent for the preservation and durability of shipp ing . The measure bids fair to become an object of the greatest importance to the maritime and mercantile interest of this country .
POLARITY OF WATCHES . AN Artist has lately discovered that magnetic attraction has a very powerful influence on the due performance of watches , and that the balance wheel has , in many instances , a great degree of polarity . . This discovery may be of considerable advantage in improving the correctness of time-keepers .
AGRICULTURE . Is a field belonging to Mr . GrebcU , oi " Suppington , Kent , a single grain of wheat , planted for the purpose of experiment , has this season produced 42 stalks , which contained 1724 full grains , weighing 3 ounces and an half . In gathering some grains were lost . MANURE . GYPSUM , or plaster of Paris , possesses a most powerful and subtle
principle ; and it is capable , when applied as a manure , v . nd sown in the quantity of about six bushels per acre , of forcing vegetation in an astonishing degree . Experiments on Sainfoin , Cow-grass , Dutch clover , & c . have been extremely successful . '
BREED OF CATTLE . At a meeting of the Holderness Agricultural Societv , holden ^ at Hedon , on the 12 th of September , the question , ' Whether theie is any solid objection against breeding from cattle , however near their consanguinity ? ' was discussed by a numerous meeting of the society ; when the unanimous opinion of the meeting was , that there is not any solid reason whatever against breeding from cattle of thc same family , however nearly related . >
Note: This text has been automatically extracted via Optical Character Recognition (OCR) software.
Scientific Intelligence.
this machine . They crossed the Seine in a short time , and after having drawn no in a platoon on the opposite side , they re-entered the river , and in the middle cf it set up a fire of musketry well sustained , and charged with bnvonets , although they bad under them at least 21 feet of water . It will carry , besides the weight of the men , a burthen of five myriagrammes . ROLLING MACHINE .
Mr- HAZLEDI ! -: E , of Salop , has made an improvement in rolling iron , copper , lead , & c . into plates or sheets . Instead of a single pair of rollers , Mr . I-Iazledine proposes that three or four pairs should be erected adjoining to each other , with guards of metal to deliver the lead , & c . from one roller to the next : the cylinders of each pair of rollers are to be placed at different proportional distances , so as that a bar of metal being flatted in its passage through the first pair , may be still further expanded in going through the
second , and so on till it is delivered out of the last , of the requisite thinness . Thus by a single operation , a bar of copper may be reduced to a sheet ; which in the common way requires several repeated operations . VENTILATOR FOR PRESERVING CORN ON SHIP-BOARD . THIS machine , invented by Thomas Smith , Esq . consists of a forcing pump , with annexed perforated tubes , by which fresh air is diffused to every part of the bulk .
DURABILITY OF SHIPPING .. As the consumption of ship-timber for several years back has rendered it now an object of very serious attention , from the apprehension of an absolute scarcity thereof , it must be a matter of much satisfaction to perceive that the Great Seal , a little time back , was affixed to a patent for the preservation and durability of shipp ing . The measure bids fair to become an object of the greatest importance to the maritime and mercantile interest of this country .
POLARITY OF WATCHES . AN Artist has lately discovered that magnetic attraction has a very powerful influence on the due performance of watches , and that the balance wheel has , in many instances , a great degree of polarity . . This discovery may be of considerable advantage in improving the correctness of time-keepers .
AGRICULTURE . Is a field belonging to Mr . GrebcU , oi " Suppington , Kent , a single grain of wheat , planted for the purpose of experiment , has this season produced 42 stalks , which contained 1724 full grains , weighing 3 ounces and an half . In gathering some grains were lost . MANURE . GYPSUM , or plaster of Paris , possesses a most powerful and subtle
principle ; and it is capable , when applied as a manure , v . nd sown in the quantity of about six bushels per acre , of forcing vegetation in an astonishing degree . Experiments on Sainfoin , Cow-grass , Dutch clover , & c . have been extremely successful . '
BREED OF CATTLE . At a meeting of the Holderness Agricultural Societv , holden ^ at Hedon , on the 12 th of September , the question , ' Whether theie is any solid objection against breeding from cattle , however near their consanguinity ? ' was discussed by a numerous meeting of the society ; when the unanimous opinion of the meeting was , that there is not any solid reason whatever against breeding from cattle of thc same family , however nearly related . >