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cause_n cause_v perpendicular_a zone_n 12 3 12.8237 5 false
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ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A03576 The vse of both the globes, celestiall, and terrestriall most plainely deliuered in forme of a dialogue. Containing most pleasant, and profitable conclusions for the mariner, and generally for all those, that are addicted to these kinde of mathematicall instrumentes. VVritten by T. Hood mathematicall lecturer in the citie of London, sometime fellow of Trinitie Colledge in Cambridge. Hood, Thomas, fl. 1582-1598. 1592 (1592) STC 13698; ESTC S106231 107,894 188

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I runne South about 60. leagues sometimes South Southwest as many leagues then South and by East 100. leagues then after that Southwest I know not how farre but I finde my selfe to bee in four degrees of latitude South ward How shall I obserue this course vpon the Globe M. If you were perfect in that which I haue taught you you would not make a doubt of this but for so much as you are but yet a nouice herein I will exempli●ie the matter vnto you that by this one example you may gather what you haue to doe in the rest The example shall be that which you haue propounded supposing the place from whence wee set sayle to be the Southermost side of cape de verde at that place where the tenth ●●eridian or circle of longitude toucheth the land First Therefore in that meridian I count 60. leagues which are degrees where I make a mark whereby I find my selfe ●o be in 11. degrees of latitude and vnder the same messdian from thence you ranne according to your suppo●tion 60. leagues from the marke which I made in the 〈◊〉 circle of longitude I draw with a blacke leade an ob●ture parallell which shall cut the Rhombe of South ●outh west in that Rhombe I account 60. leagues which ●●e three degrees as I did before and from thence pre●ntly toward the Cape I draw a parallell to the equator ●●en taking with my compasses the 6o leagues noted in ●e Rhombe of South Southwest I set the one foote of ●y compasses in the marke made in the 10. circle of lon●tude stretch the other foote westward to the paral●● which was last drawen and there make a marke Here I finde my selfe to be almost in the eight degree of latitude and from the place of my departure a little more than sixe score leagues and from the meridian thirtie leagues Afterward you suppose your course to be South and by East an hundred leagues continuing the last parallell vnto that Rhombe I count in it an hundred leagues making a marke therein as I did before and frō it also drawing a parallell line toward the cape then my compasse being extended to an hundred leagues I set the one foot in the marke made in the former parallell and turne the other Eastwards according to my direction vntill I touch this last parallel which was described there also I make a pricke your last course was Southwest you know not how farre but you found your selfe to be in foure degrees of South latitude I bring the meridian to the rhombe of Southwest and there make a note vnder the fourth degree of latitude and from thence I draw another parallell toward the Cape then taking as much of the Rhombe of Southwest as was contained between these parallell lines I set the one foote of my compasse in the marke which was last made and extend the other foote to the last parallell making a marke therein which is the place of my being and thereby I gather that I am fallen to the Southward of the line foure degrees am distant from cape verde 390. leagues and from the meridian from whence I departed 140. Thus much concerning the vse of the rhombes described vpō the terrestrial globe There remaine now Philoma a thes none of the circles of the Globe to be spoken of but the lesser circles onely which are the limites of the siue Zones whereof mention was made in the ende of the celestial Globe The vse of the which circles in the terrestriall Globe is no more than this to signify what inhabitants of the earth doe dwell in euerie Zone and who they bee which feele that distemperature or temperature of heate and cold Whereby you may perceaue how great●y they erred which though the temperate Zones onely to be habitable and the other by meanes of their extre●mitie of heate and cold to be vnhabited P. Concerning the qualities of the 5. Zones I would gladly be resolued in those questions first whether each part of the burning Zone be of a like heate and if they be not which is the hottest Secondly whether the other Zones bee of a likely condition or if they bee not which exceedeth one another in their qualities M. I will willingly satiffy your desire and that so much the rather because some of the argumentes vsed in deciding those questions may be expressed on the globe You must here note what be the efficient causes effectes are counted 3. First the heat is caused by the perpendicu●tity Secondly the long abroad Thirdly the neerenes of the Sunne The cold therefore must be effected by the obliquitie by the ●mall abode and by the elongation of ●he sunne This also standeth with reason that where here are most causes there must be the greatest heate or old Let vs therefore examin them in the Zones begin●ing first with the burning Zone For so much as the bur●ing Zone is contained within the Tropickes so many ●herefore as inhabit that Zone must of necessity haue the ●unne perpendicular vnto them so that in that respect shey are all equall though in the other causes they disare●e The abode of the Sunne is lesser vnder the Equa●●r than vnder the tropickes for the day is but of 12. houres vnder the equator but vnder the tropickes it 〈◊〉 13. ½ And somewhat more Moreouer the Sunne comming toward the Equator and depatting from it declineth almost in one moneth so much as he doth in moneths neere to the tropickes Last of all the Sunne comming toward the equator keepeth on his course 〈◊〉 rectly not comming that way agayne till halfe a yea● be past but comming toward the tropickes as he h●teth the earth mightily by his slow ascending so doth encrease the heart by his slow descending and his so dait returne The heate therefore neare vnto the tropickes greater than vnder the equator P. Then which is the hotter of the two tropickes M. Then tropicke of Capricorne for it hath not o●ly the Sunne perpndicular and continuing a long ti●● aboue the horizon as the other tropicke hath But 〈◊〉 hereafter you your selfe will confesse according as y●● goe one forwarde in these studies Hereupon the cond question may bee resolued that of the two ●●zones the antarcticke is the colder and in the tem●rate zones the winter is colder to the Southward th● to the Northward for albeit hee bee oblique to th● both and continue a like time aboue ether of their 〈◊〉 rizons yet for so much as in Winter hee is neer●● them that dwell in the Northren zones than to th●● that dwell in the Southern zones they therefore h●● the warmer Winter and consequently the colder Su●mer Hauing now answered your questions it maineth Philomathes to aduise you to acquaint y●● selfe throughly with your globe not onely that you 〈◊〉 be readie to perform those conclusions which you 〈◊〉 learned but also that you may know and distinguish the seuerall partes of the world with the chiefe Kingdomes Cities Capes neckes of land Seas Streightes and Riuers throughout the whole world for it wil be vnto you a great disgrace especially in this our trauelling age not ●o be cunning in these thinges which cunning you may ●asily attaine vnto if you doe but furnish your studie with the Globes and now and then as your leasure ser●eth looke vpon them P. I will doe mine indeuor especially because as I ●ue a good hope of the profite that may ensue so I find ●●e pleasuce to be exceeding great And to you sit for the ●ines which you haue taken in furthwering my study I al thinke my selfe greatly beholding so longe as I liue M. That is my desire Philomathes to make ●●ng students to be beholding vnto me if so be here●er you shall stand in need of my helpe ether through getfulnes or hardnes of that which I haue taught you if you will repaire to my poore lodging in Abchurch lane you shall find me ready to doe you what pleasure I can And so farewell FINIS