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On the various forces of nature

Michael Faraday

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Book Excerpt: 
. . .n the direction of any of the surfaces already existing. You will be able to do it at once; but if you try to cut it across the crystals, you cannot—by hammering, you may bruise and break it up—but you can only divide it into these beautiful little rhomboids.

Fig. 15., Fig. 16. and Fig. 17.

Now I want you to understand a little more how this is—and for this purpose I am going to use the electric light again. You see, we64 cannot look into the middle of a body like this piece of glass. We perceive the outside form, and the inside form, and we look through it; but we cannot well find out how these forms become so: and I want you, therefore, to take a lesson in the way in which we use a ray of light for the purpose of seeing what is in the interior of bodies. Light is a thing which is, so to say, attracted by every substance that gravitates (and we do not know anything that does not). All matter affects light more or less by what we m. . . Read More

Community Reviews

Loved these lectures about the generalized 1800s understanding of physical forces in nature. I loved imagining being in the lecture with great descriptions of the experiments. if only I had the reference illustrations for a better understanding, but everything was very well explained as such for a y