Selected quad for the lemma: day_n

Word A Word B Word C Word D Occurrence Frequency Band MI MI Band Prominent
day_n fair_a morning_n noon_n 4,174 5 11.9144 5 false
View all documents for the selected quad

Text snippets containing the quad

ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A28982 A free enquiry into the vulgarly receiv'd notion of nature made in an essay address'd to a friend / by R.B., Fellow of the Royal Society. Boyle, Robert, 1627-1691. 1686 (1686) Wing B3979; ESTC R11778 140,528 442

There is 1 snippet containing the selected quad. | View lemmatised text

Coldness is natural to Water since this Liquor perpetually varies its Temperature as to Cold and Heat according to the temper of the Contiguous or the Neighbouring Bodies especially the Ambient Air. And therefore the Water of an unshaded Pond for Instance though it rests in its proper and natural Place as they speak yet in Autumn if the Weather be fair the Temperature of it will much vary in the compass of the same Day and the Liquor will be much hotter at Noon than early in the Morning or at Midnight though this great diversity be the Effect only of a Natural Agent the Sun acting according to its regular Course And in the depth of Winter 't is generally confess'd that Water is much colder than in the Heat of Summer which seems to be the Reason of what is observ'd by Watermen as a wonderful thing namely that in Rivers Boats equally Laden will not sink so deep in Winter as in Summer the cold Condensing the Water and consequently making it heavier in specie than it is in Summer when the Heat of the Ambient Air makes it more thin In divers parts of Africk that Temperature is thought natural to the Water because 't is that which it usually has which is far hotter than that which is thought natural to the same Liquor in the frigid Zone And I remember on this occasion what perhaps I have elsewhere mention'd upon another that the Russian Czars chief Physician inform'd me that in some Parts of Siberia one of the more Northern Provinces of that Monarch's Empire Water is so much more Cold not only than in the Torrid Zone but than in England that two or three foot beneath the surface of the Ground all the Year long even in Summer itself it continues Concreted in the form of Ice so Intense is the Degree of Cold that there seems natural to it This odd Phaenomenon much confirms what I lately intimated of the Power of Contiguous Bodies and especially of the Air to vary the Degree of the coldness of Water I particularly mention the Air because as far as I have try'd it has more Power to bring Water to its own Temperature than is commonly suppos'd For though if in Summer-time a Man puts his Hand into Water that has lain expos'd to the Sun he will usually feel it Cold and so conclude it much colder than the Ambient Air yet that may often happen upon another Account namely that the Water being many Hundred times a more Dense Fluid than the Air and consisting of Particles more apt to insinuate themselves into the Pores of the Skin a greater Part of the Agitation of the Blood and Spirits contained in the Hand is communicated to the Water and thereby lost by the Fluids that part with it And the Minute Particles of the Water which are perhaps more Supple and Flexible insinuating themselves into the Pores of the Skin which the Aerial Particles by Reason of their Stifness and perhaps Length cannot do they come to affect the somewhat more Internal Parts of the Hand which being much Hotter than the Cuticula or Scarf-skin makes us feel them very Cold as when a Sweating Hand is plung'd into Luke-warm Water the Liquor will be judg'd Cold by Him who if his Other Hand be very Cold will with it feel the same Water Hot. To confirm which Conjecture I shall add that having sometimes purposely taken a Seal'd Weather-glass whose included Liquor was brought to the Temperature of the Ambient Air and thrust the Ball of it under Water kept in the same Air there would be discover'd no such Coldness in the Water as One would have expected the former Reason of the sensible Cold the Hand feels when thrust into that Liquor having here no Place To which I shall add that having for Tryal's sake made Water very Cold by dissolving Sal-armoniac in it in Summer time it would after a while return to its usual degree of Warmth And having made the same Experiment in Winter it would return to such a Coldness as belong'd to it in that Season So that it did not return to any Determinate degree of Coldness as Natural to it but to that Greater or Lesser that had been Accidentally given it by the Ambient Air before the Sal-armoniac had Refrigerated It. As to the Motion of Restitution observable upon the Removal or Ceasing of the Force in Air violently compress'd and in the Blade of a Sword forcibly bent I confess it seems to me a very difficult Thing to assign the true Mechanical Cause of It. But yet I think it far more likely that the Cause should be Mechanical than that the Effect proceeds from such a Watchfulness of Nature as is pretended For First I question Whether we have any Air here Below that is in Other than a Preternatural or Violent State the Lower Parts of our Atmospherical Air being constantly compress'd by the weight of the Upper Parts of the same Air that lean upon them As for the Restitution of the bent Blade of a Sword and such like Springy Bodies when the force that bent them is remov'd my Thoughts about the Theory of Springynes belong to another Paper And therefore I shall here only by way of Argument ad Hominem consider in Answer to the Objection That if for Example you take a somewhat long and narrow Plate of Silver that has not been hammer'd or compress'd or which is surer has been made red-hot in the Fire and suffer'd to cool leasurely you may bend it which way you will and it will constantly retain the last curve Figure that you gave It. But if having again streightned this Plate you give it some smart stroaks of a Hammer it will by that meerly Mechanical Change become a Springy Body So that if with your Hand you force it a little from its Rectitude as soon as you remove your Hand it will endeavour to regain its former Streightness The like may be observ'd in Copper but nothing near so much or scarce at all in Lead Now upon these Phaenomena I demand Why if Nature be so careful to restore Bodies to their former State She does not restore the Silver Blade or Plate to its Rectitude when it is bent this way or that way before it be Hammer'd And why a few stroaks of a Hammer which acting violently seems likely to have put the Metal into a Preternatural State should entitle the Blade to Nature's peculiar Care and make Her solicitous to restore it to its Rectitude when it is forc'd from It And Why if the Springy Plate be again Ignited and Refrigerated of itself Nature abandons Her former Care of It and suffers it quietly to continue in what crooked Posture One pleases to put it into Not now to demand a Reason of Nature's greater Partiality to Silver and Copper and Iron than to Lead and Gold itself in Reference to the Motion of Restitution I shall add to what I was just now saying that even in