The young gentleman and lady's philosophy : in a continued survey of the works of nature and art by way of dialogue . et at Z; from whence it is evident, that theBeginning or Ingrefs will appear to you in the Line ^ T Y, andthe Egrcls in the Line /? U Z; therefore the Planet muft be inits Orbit at T in the firfl: Cafe, and at U in the latter; an^, thatits PafTage from T to U, as it is fhorter than that from S to V,fo it will be performed in lefs Time, and therefore you will atBengal obferve the Tranfit of a lefs Continuance, than if youri^ye was placed at the Center C, by about elevai Minutes.
The young gentleman and lady's philosophy : in a continued survey of the works of nature and art by way of dialogue . et at Z; from whence it is evident, that theBeginning or Ingrefs will appear to you in the Line ^ T Y, andthe Egrcls in the Line /? U Z; therefore the Planet muft be inits Orbit at T in the firfl: Cafe, and at U in the latter; an^, thatits PafTage from T to U, as it is fhorter than that from S to V,fo it will be performed in lefs Time, and therefore you will atBengal obferve the Tranfit of a lefs Continuance, than if youri^ye was placed at the Center C, by about elevai Minutes. Euphrof. I think, I pretty clearly underfl:and you ; for I feetlie Alotion from b towards ^ is in a contrary DiretSlion to that Ofthe Planet from Y to Z, and therefore muftcaufe her apparentMotion to be quicker, in the Manner you have now explained, Clean. As yoii cannot underftand thefs Things too well, 1fhall exemplify it otherwife by the parallatic Angle in a Cafefimilar to that of the Candle on the Table, which I beforementioned to you ;——— Thus, fuppofe a Plane was placed Vol. IL X beyoni r/. XLH. and Ladys Philosophv. ijj Cleoju You have been long, ere now, inftrufted in the Mea- fures of Aftronomyj you know the Diameter of the Sun is, at a Mean, a httle more than half a Degree; but atthe Time of the Tranfit, it will be very nearly 3?/ of a De-gree : And therefore, fuppoling that the Diameter A E bedivided into thirty-two equal Part, the Planet will appear topafs over four of them in an Hour, /. e. her horary Motion isafter the Rate of four Minutes an Hour; and therefore, inpaffing from Y to Z, the Time fpent will be equal to abouticxtn Hours and twenty Minutes; fuch will be the Time ofthe Tranfit, to an Eye at the Center C. In this Time a Spec-tator at the Equator will, by the diurnal Motion of the Earth,be carried thro 110° of Longitude, equal to the Arch K F L. Euphrof, Very good, Cleonkiis^ I underftand you ; but nowletme view the Tranlit from Bengal^ in y
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Keywords: ., bookcentury1700, bookdecade1750, booksubjectscience, bookyear1759
