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gnox at Jul 05, 2018 05:58 PM

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60

led to the prediction of the mechanical pressure
of light, which had not at first been contemplated.

The second order of induction only
infers that a theory is very much like
the truth, because
we are so far from ever being authorized
to conclude that a theory is the very
truth
itself, that we can never so much
as understand what that means.
Light is electro-magnetic vibrations; that
is to say, it [is] something very like that.
In order to say that it is precisely that, we
should have to know precisely what we
mean by electro-magnetic vibrations. Now

32

60

led to the prediction of the mechanical pressure
of light, which had not at first been contemplated.