DIP OF THE HORIZON
\dˈɪp ɒvðə həɹˈa͡ɪzən], \dˈɪp ɒvðə həɹˈaɪzən], \d_ˈɪ_p ɒ_v_ð_ə h_ə_ɹ_ˈaɪ_z_ə_n]\
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The angle at the eye of the observer between a plane at right angles to the plumb-line, and a line drawn to a point on the visible horizon or line which seems to bound the ocean. When a magnet is suspended so as to swing freely round a horizontal axis at right angles to the magnetic meridian, it comes to rest at a certain definite inclination to the horizon; this angle (which is different at different places) is the Magnetic D.
By Henry Percy Smith
Word of the day
dust storm
- a windstorm that lifts up clouds of dust or sand a windstorm that lifts up clouds dust or sand; "it was the kind of duster not experienced in years"