FREE BOOKS

Author's List




PREV.   NEXT  
|<   62   63   64   65   66   67   68   69   70   71   72   73   74   75   76   77   78   79   80   81   82   83   84   85   86  
87   88   89   90   91   92   93   94   95   96   97   98   99   100   101   102   103   104   105   106   107   108   109   110   111   >>   >|  
even the _closest Metals_, by which means it may endeavour to _detrude_ all earthly bodies as far from it as it can; and partly thereby, and partly by other of its properties may move them towards the Center of the Earth. Now that there is some such fluid, I could produce many Experiments and Reasons, that do seem to prove it: But because it would ask some time and room to set them down and explain them, and to consider and answer all the Objections (many whereof I foresee) that may be alledged against it; I shall at present proceed to other _Queries_, contenting my self to have here only given a hint of what I may say more elswhere. A Third _Query_ then was, Whether the _heterogeneity_ of the _ambient fluid_ may not be accounted a _secondary cause_ of the _roundness_ or _globular form_ of the _greater bodies_ of the world, such as are those of the _Sun_, _Stars_, and _Planets_, the _substance_ of each of which seems altogether _heterogeneous_ to the _circum-ambient fluid aether_? And of this I shall say more in the Observation of the Moon. A Fourth was, Whether the _globular form_ of the _smaller parcels_ of matter here upon the _Earth_, as that of _Fruits_, _Pebbles_, or _Flints_, &c. (which seem to have been a _Liquor_ at first) may not be caused by the _heterogeneous ambient fluid_. For thus we see that melted _Glass_ will be naturally formed into a _round Figure_; so likewise any small Parcel of any _fusible body_, if it be perfectly enclosed by the _Air_, will be driven into a _globular_ Form; and, when cold, will be found a _solid Ball_. This is plainly enough manifested to us by their way of making _shot_ with the _drops of Lead_; which being a very pretty curiosity, and known but to a very few, and having the liberty of publishing it granted me, by that _Eminent Virtuoso_ Sir _Robert Moray_, who brought in this Account of it to the _Royal Society_, I have here transcribed and inserted. To make small shot of different sizes; Communicated by his Highness _P.R._ _Take Lead out of the Pig what quantity you please, melt it down, stir and clear it with an iron Ladle, gathering together the blackish parts that swim at top like scum, and when you see the colour of the clear Lead to be greenish, but no sooner, strew upon it _Auripigmentum_ powdered according to the quantity of Lead, about as much as will lye upon a half Crown piece will serve for eighteen or twenty pound weight of some sorts of Lead; others will re
PREV.   NEXT  
|<   62   63   64   65   66   67   68   69   70   71   72   73   74   75   76   77   78   79   80   81   82   83   84   85   86  
87   88   89   90   91   92   93   94   95   96   97   98   99   100   101   102   103   104   105   106   107   108   109   110   111   >>   >|  



Top keywords:

globular

 

ambient

 

Whether

 
quantity
 
bodies
 

heterogeneous

 

partly

 

Robert

 
brought
 

Virtuoso


publishing
 

granted

 

Eminent

 

liberty

 

perfectly

 

enclosed

 

driven

 

plainly

 
pretty
 

curiosity


making

 

manifested

 

colour

 

blackish

 

gathering

 

greenish

 

powdered

 

Auripigmentum

 

sooner

 

inserted


twenty

 

transcribed

 
Account
 

Society

 

Communicated

 

Highness

 

eighteen

 
weight
 
Fruits
 

explain


answer

 
Objections
 

whereof

 

foresee

 
alledged
 
contenting
 

present

 

proceed

 

Queries

 

earthly