Philosophical MagazineTaylor & Francis., 1829 - Physics |
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Page 24
... direction . It appears also that vibrations proceeding from a distant point and moving in the direction of the axis , are reflected from the parabolic surface towards the focus . For let A stand in the pulpit as before , and B in a ...
... direction . It appears also that vibrations proceeding from a distant point and moving in the direction of the axis , are reflected from the parabolic surface towards the focus . For let A stand in the pulpit as before , and B in a ...
Page 24
... direction . It appears also that vibrations proceeding from a distant point and moving in the direction of the axis , are reflected from the parabolic surface towards the focus . For let A stand in the pulpit as before , and B in a ...
... direction . It appears also that vibrations proceeding from a distant point and moving in the direction of the axis , are reflected from the parabolic surface towards the focus . For let A stand in the pulpit as before , and B in a ...
Page 85
... direction OA . The doubly reflected one coinciding with it has at first the same direction . In this direction it strikes the small mirror , and is reflected by it to the large mirror . If we make p B on the other side of p = p A in the ...
... direction OA . The doubly reflected one coinciding with it has at first the same direction . In this direction it strikes the small mirror , and is reflected by it to the large mirror . If we make p B on the other side of p = p A in the ...
Contents
JULY | 1 |
Mr Childrens Abstract of the Characters of Ochsenheimers | 9 |
Mr Foxs Remarks on Mineral Veins | 19 |
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æther ammonia angle Antennæ apex appears astronomical axis basal joint beds carbonic acid carbonic oxide chloride ciliated Cloudy colour containing crystals Curtis deposited dolomite elongate equation Ernst eudiometer evaporation experiments feet fluid fœm formation fossil genera genus Geom grains gravel gravity heat Hüb Hübn hydrogen Icon inches interfemoral membrane Laplace Larva lime limestone Linn Linnæus males marl maxilla mercury mixture months motion muriatic muriatic acid N. S. Vol nature nearly nitric oxide Noct object observations obtained Ochs oxalic oxalic acid oxygen Palpi paper pectinated phænomena plane platina posterior potash present produced proportion pupa quantity rain rocks saliferous salt scales sextant Shad slender slightly solution species specimen Stephens strata sulphate sulphovinic acid sulphuret sulphuric acid surface telescope temperature thorax tibiæ tion Treitsch tube valleys VIII volume weight Whitebait wings