Gage, Alfred P. (Alfred Payson), 1836-1903, Fessenden, C · Toronto : W.J. Gage · leaf 358
with which waves in air move forward. This greatdifference can be accounted for only on the supposition that therarity and elasticity of ether are enormously greater than that ofair. … ^36 EADIANT ENERGY. — LIGHT. LIII. REFLECTION OF LIGHT. § 288. Law of reflection. — Arrange apparatus as follows:AB, Figure 243, is a board I2<:> square, having a mirror 8=squarefastened to one of its sides. E is a rod 24^ long inserted in the boardclose to the initldle of one of the edges of…
Physics
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