The Edinburgh Encyclopædia Conducted by David Brewster, with the Assistance of Gentlemen Eminent in Science and Literature, 1권J. and E. Parker, 1832 |
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82 페이지
... colour of red , and continues to be visible till the impression made upon the retina by the red square has been effaced by other images . By making the same experiment with squares of different colours , it will be found that Black is ...
... colour of red , and continues to be visible till the impression made upon the retina by the red square has been effaced by other images . By making the same experiment with squares of different colours , it will be found that Black is ...
83 페이지
... colour without the aid of a diagram . Position of the Position of the point m , or the centre of gravity point opposite Limits of each Colours . jof each coloured the centre of gra - jcoloured arch . arch . vity of each co- loured arch ...
... colour without the aid of a diagram . Position of the Position of the point m , or the centre of gravity point opposite Limits of each Colours . jof each coloured the centre of gra - jcoloured arch . arch . vity of each co- loured arch ...
84 페이지
... colour ought to be much fainter than the accidental colour of the square ; for the part of the retina , which produces the fringe , has not been so long excited as the part which produces the accidental colour . There is , however , no ...
... colour ought to be much fainter than the accidental colour of the square ; for the part of the retina , which produces the fringe , has not been so long excited as the part which produces the accidental colour . There is , however , no ...
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Abyssinia academy according acre advantage Æneid Æsop æther Africa afterwards agriculture Agrippa Alamanni ancient animals appear army attention balloon barley beans Begemder body breed Britain called cattle celebrated church circumstances clay clover colour common turnips consequence considerable corn crop cultivated drilled dung earth employed England equal Ethiopia expense farm farmer favour feet Fezzan field flint glass furrow given Gondar grain grass greater Greek ground Hist honour horses husbandry improvement inches inhabitants island kind king kingdom labour land lease length lime loam machine manner manure ment miles mode mountain nature oats object plants plough possession practice present produce quantity reign rendered retina river Roman Rotherham plough rye-grass Scotland season seed situation soil sound sown stone Strabo straw string sufficient summer fallow supposed surface thrashing Tigré tillage tion tivated town turnips vibration wheat whole