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Updated: May 21, 2025
Now, in the same figure, if one draws EAF, which cuts the plane AB at right angles at the point A, since AD is perpendicular to the wave AC, it will be DA which will mark the ray of incident light, and AN which was perpendicular to BN, the refracted ray: since the rays are nothing else than the straight lines along which the portions of the waves advance.
Some of the great trunks were oppressed with vines green as garlands, and these vines even ran like verdant foam over the rocks. Streams of translucent water showered down from the hills, and made pools in which every pebble, every eaf of a water plant shone with magic lustre, and if the bottom of a pool was only of clay, the clay glowed with sapphire light. The day was fair.
But this angle EAF is scarcely ever more than half a degree because the attenuation of the vapours alters the waves of light but little. Furthermore these refractions are not altogether constant in all weathers, particularly at small elevations of 2 or 3 degrees; which results from the different quantity of aqueous vapours rising above the Earth.
"I always thought you Spanish gentlemen were very dark, and wore long mustaches and a cloak," said pretty little Miss Walker, gazing frankly into the smooth round face of the eldest Pacheco "why, you are as fair as I am," "Eaf I tink that, I am for ever mizzarable," he replied, with grave melancholy. In the dead silence that followed he was enabled to make his decorous point.
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