Musschenbroek, Petrus van, Physicae experimentales, et geometricae de magnete, tuborum capillarium vitreorumque speculorum attractione, magnitudine terrae, cohaerentia corporum firmorum dissertationes: ut et ephemerides meteorologicae ultraiectinae

Table of contents

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[311.] Problema. XIX. Triangulum E S F, Leida, Gouda, Rotterodamum.
[312.] Problema XX. Triangulum E S V. Leida, Vltrajectum, Gouda.
[313.] Problema XXI. Triangulum E R V, connectens Trajectum, Leidam, Dordracum.
[314.] Problema. XXII. Triangulum E M V. Leida, Oudewatera, Vltrajectum.
[315.] Problema XXIII. Triangulum E M S. Leidam, Oudewateram & Gou-dam connectens.
[316.] Problema XXIV. In Triangulo A E I Haga, Leida, Harlemum.
[317.] Problema XXV. Tab. XV. fig. 15. Diſtantia inter Harlemum & Leidam alio modo quæſita in Triangulo I A E.
[318.] Problema XXVI. Tab. XVI. Triangulum O E V, Amſtelodamum, Leida, Vltrajectum.
[319.] Problema XXVII. Triangulum E I V, Leida, Harlemum, Vltra-jectum.
[320.] Problema XXVIII. Triangulum E I O, Leida, Harlemum, Amſtelo-damum.
[321.] Problema XXIX. Triangulum I O ?, Harlemum, Amſtelodamum Alcmaria.
[322.] Problema XXX. Triangulum E O ? Leida, Amſtelodamum, Alcmaria.
[323.] Problema XXXI. Triangulum M V L, Oude-Watera, Vltrajectum, Bommelia.
[324.] Problema XXXII. Trangulum R V L, Dordracum, Trajectum, Bommelia.
[325.] Problema XXXIII. Triangulum E V L. Leida, Trajectum, Bommelia.
[326.] Problema XXXIV. Triangulum ? E L, Alcmaria, Leida, Bommelia.
[327.] Problema XXXV. Triangulum R L V. Dordracum, Bommelia, Breda.
[328.] Problema XXXVI. Triangulum R S F. Dordracum, Gouda, Rotterodamum.
[329.] Problema XXXVII. Triangulum R T F, Dordracum, Willemſtadium, Rotterodamum.
[330.] Problema XXXVIII. Triangulum R T V. Dordracum, Willemſtadium, Breda.
[331.] Problema XXXIX. Triangulum T V Q Willemſtadium, Breda, Bergaad Somum.
[332.] Problema XL. Triangulum R V Q Dordracum, Breda, Berga ad Somum.
[333.] Problema XLI. Triangulum V L Q Breda, Bommelia, Berga ad Somum.
[334.] Problema XLII. Triangulum E I ?, Leida, Harlemum, Alcmaria.
[335.] Problema XLIII. Triangulum E V ?. Leida, Trajectum, Alcmaria.
[336.] Problema XLIV. Triangulum V L ?. Trajectum, Bommelia, Alcmaria.
[337.] Problema XLV. Triangulum Q L ?. Berga ad Somum, Bommelia, Alcmaria.
[338.] Problema XLVI.
[339.] FINIS.
[340.] INTRODUCTIO AD COHÆ RENTIAM CORPORUM FIRMORUM.
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423409DE MAGNITUDINE TERRÆ.11
Ex obſervatis angulus I A E # 121 gr. 7`.
Angulus A E I # 42 gr. 24`.
Unde angulus A I E # 16 gr. 29`.
Atque eruitur latus I E ſive diſtantia inter Harlemum \\ & Leidam # 7053, 4, 8.
Adeoque differentia inter ambas diſtantias in hoc \\ & in Problemate XXIV inventa admodum parva eſt, \\ tutoque aſſumere licebit diſtantiam inter Harlemum \\ & Leidam eſſe # 7053, 4, 8.
Snellius aliam adhuc inſtituens Gæodæſiam, deter- \\ minat eam diſtantiam eſſe # 7049, 2.
Atque poſtea adhuc ex alio calculo # 7051, 1.
Quamobrem mediam ponam inter Snellianam & inventam in
Problemate XXIV.
quæ eſt hujus Problematis XXV.
Problema XXVI.
Tab. XVI. Triangulum O E V, Amſtelodamum, Leida,
Vltrajectum.
22
Datur per Problema XX diſtantia E V inter Leidam \\ & Ultrajectum # 11589, 8.
Et ex obſervatis angulus O E V # 50 gr. 40`.
Angulus O V E # 54 gr. 10`.
Unde reliquus E O V datur # 75 gr. 10`.
Quare diſtantia O E inter Amſtelodamum & Lei- \\ dam erit # 9750, 0, 4.
Et O V diſtantia inter Amſtelodamum & Ultraje- \\ ctum. # 9280, 6, 5.

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