Selected quad for the lemma: day_n

Word A	Word B	Word C	Word D	Occurrence	Frequency Band	MI	MI Band	Prominent
day_n	half_a	hour_n	quarter_n	7,627	5	11.1436	5	true

Text snippets containing the quad

ID	Title	Author	Corrected Date of Publication (TCP Date of Publication)	STC	Words	Pages
A45273	The celestial worlds discover'd, or, Conjectures concerning the inhabitants, plants and productions of the worlds in the planets written in Latin by Christianus Huygens, and inscrib'd to his brother, Constantine Huygens ...; Kosmotheōros. English	Huygens, Christiaan, 1629-1695.; Huygens, Constantijn, 1628-1697.	1698 (1698)	Wing H3859; ESTC R5990	59,610	157

and of the Orbs of his Satellites to the Orbit of the Moon round the Earth I have there made the Diameter of Jupiter about two third parts of our distance from the Moon for the Diameter of Jupiter is above twenty times bigger than that of the Earth which the distance of the Moon contains about thirty times The Orbit of the outermost of Jupiter's Guards is to that of the Moon round the Earth as 8 and ½ is to 1. And each of these Moons by the shadow they make upon Jupiter cannot be less than our Earth Their Periods The periods of Jupiter's Moons that I may not omit them are according to Cassini's account these That of the inmost is one day 18 hours 28 minutes and 36 seconds The second spends 3 days 13 hours 13 min. 52 sec in going round him The third 7 days 3 hours 59 min. 40 sec The fourth 16 days 18 hours 5 min. 6 sec The distance of the innermost from Jupiter himself is 2 ⅙ of his Diameters That of the second is 4 and a half Of the third 7 and one sixth part Of the fourth 12 and two thirds of the same Diameters The innermost of Saturn's Guards moves round him in 1 day And Saturn ' s. 21 hours 18 min. 31 sec The second in 2 days 17 hours 41 min. 27 sec The third in 4 days 13 hours 47 min. 16 sec The fourth in 15 days 22 hours 41 min. 11 sec The fifth in 79 days 7 hours 53 min. 57 sec Their distances from the Center of Saturn are that of the first almost one that is 39 fortieth parts of the Diameter of his Ring that of the second one and a quarter of those Diameters of the third one and three quarters of them of the fourth four or according to my calculation but 3 and a half of the fifth 12 which were found with vast pains and labour Now can any one look upon and compare these Systems together without being amazed at the vast Magnitude and noble Attendance of these two Planets in respect of this little pitiful Earth of ours Or can they force themselves to think that the wise Creator has disposed of all his Animals and Plants here has furnish'd and adorn'd this Spot only and has left all those Worlds bare and destitute of Inhabitants who might adore and worship him or that all those prodigious Bodies were made only to twinkle to and be studied by some few perhaps of us poor fellows This proportion true according to all modern Observations I do not doubt but there will be some who will think we Romance very much about the Magnitude of these Planets For will you pretend to make them who are taken up in admiring the largeness of this Globe its multitude of Nations Cities and Empires can you pretend I say to make them ever believe that there are Places in comparison of which the Earth is as inconsiderable as my Figure would make it No they know better things they 'l cry But they may vouchsafe to be inform'd that these Proportions are those which the best Astronomers of this Age have agreed upon For if the Earth be distant from the Sun ten or eleven thousand of its own Diameters according to the accounts of Monsieur Cassini in France and Mr. Flamsted in England wherein they made use of very exact Observations of the Parallaxes of Mars or if according to a very probable Conjecture of mine it be distant twelve thousand then the Magnitudes of the other Orbs will very near answer the Proportions here settled The apparent magnitude of the Sun in Jupiter and a way of finding what light they there enjoy But to return to Jupiter The Sun appears to them five times less than to us and consequently they have but the five and twentieth part of the Light and Heat that we receive from it But that Light is not so weak as we imagine as is plain by the brightness of that Planet in the Night and that when the Sun is so far eclips'd to us as that the 25th part of his Disk be not free from the Shadow he is not sensibly darken'd But if you have a mind exactly to know the quantity of Light that Jupiter enjoys you may take a Tube of what length you please Let one end of it be clos'd with a Plate of Brass or any such thing in the middle of which there must be a hole whose breadth must have the same proportion to the length of the Tube as the Chord of 6 Minutes bears to the Radius that is about as one is to 570. Let the Tube be turn'd so to the Sun that no Light may fall upon a white Paper plac'd at the end of it but what comes through the little hole at the other end of the Tube The Rays that come through this will represent the Sun upon the Paper of the same Brightness that the Inhabitants of Jupiter see it in a clear day And if removing the Paper you place your eye in the same place you will see the Sun of the same Magnitude and Brightness as you would were you in Jupiter And in Saturn If you make the hole twice as little in breadth you will see the same of Saturn And altho his Light be but the hundredth part of ours yet you see it makes him shine finely in a dark night But in cloudy days what shall the poor Inhabitants do Why if we were to be Judges but miserably but yet I warrant they do not at all complain Perhaps they may be like Owls and Bats and may love the Twilight better than open day In Jupiter their days are 5 hours But it 's a little strange that when Jupiter is so much bigger than our Planet their Days and Nights should be but five of our Hours By this we may see that Nature has not observ'd that proportion that their bulk seems to require seeing in Mars the days are very little different from ours But in the length of their years that is in the revolution of the Planets round the Sun there is an exact proportion to their distances from the Sun followed For as the Cubes of their distances so are the Squares of their Revolutions as Kepler first found out Which proportion the Moons of Jupiter and Saturn keep in their Courses round those Planets Always of the same length As the Years and Days in Jupiter are different from ours in this respect so are the Days in another namely that they are all of the same length For they there enjoy a perpetual Equinox their Axis having little or no inclination to their Orbit as the Earth's has as has bin discover'd by Telescopes The Countries that lie near their Poles have little or no heat by reason the Rays of the Sun fall so obliquely upon them but then they are freed from the Inconveniency that ours are troubled with of tedious long half-year Nights and have the constant returns