The Notebooks of Leonardo Da Vinci Complete


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unless indeed the sun's rays should break through them; in that case  
the rain will appear less dark than the clouds. And if the heavy  
masses of ruin of large mountains or of other grand buildings fall  
into the vast pools of water, a great quantity will be flung into  
the air and its movement will be in a contrary direction to that of  
the object which struck the water; that is to say: The angle of  
reflection will be equal to the angle of incidence. Of the objects  
carried down by the current, those which are heaviest or rather  
largest in mass will keep farthest from the two opposite shores. The  
water in the eddies revolves more swiftly in proportion as it is  
nearer to their centre. The crests of the waves of the sea tumble to  
their bases falling with friction on the bubbles of their sides; and  
this friction grinds the falling water into minute particles and  
this being converted into a dense mist, mingles with the gale in the  
manner of curling smoke and wreathing clouds, and at last it, rises  
into the air and is converted into clouds. But the rain which falls  
through the atmosphere being driven and tossed by the winds becomes  
rarer or denser according to the rarity or density of the winds that  
buffet it, and thus there is generated in the atmosphere a moisture  
formed of the transparent particles of the rain which is near to the  
eye of the spectator. The waves of the sea which break on the slope  
of the mountains which bound it, will foam from the velocity with  
which they fall against these hills; in rushing back they will meet  
the next wave as it comes and and after a loud noise return in a  
great flood to the sea whence they came. Let great numbers of  
inhabitants--men and animals of all kinds--be seen driven [54] by  
440  


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438 439 440 441 442

Quick Jump
1 306 613 919 1225