Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
The extraordinary liigh and low tides are called, respectively, springand neap tides (923). 914^. The principal cause of the tides is the attraction ofFig. 15. the sun and moon upon the water of the ocean. The height of the water in all the fig-ures representing the tides, is designedlyexaggerated,… … ASTRONOMY. 465 influence of the earths own attraction and centrifugal force, come to aproper level, and, except for the disturbing influence of the wind, re-main from age to age in a state of equilibrium, as represented by thediagram. 916. Figure 16.—A single tide-wave.—It would seem, atfirst…
Physics · Astronomy
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