son sorumu kendim cevaplıyorum:
"At other latitudes, the plane of oscillation precesses relative to Earth, but slower than at the pole; the angular speed, α (measured in clockwise degrees per sidereal day), is proportional to the sine of the latitude, φ:
α = 360 sin(φ).
Here, latitudes north and south of the equator are defined as positive and negative, respectively. For example, a Foucault pendulum at 30° south latitude, viewed from above by an earthbound observer, rotates counterclockwise 180° in one day."
diyor yani teorik olarak ekvatorda hareket etmez --> sin 0° = 0 olduğundan.
kutuplarda ise sin 90° = 1 olduğundan alfa maksimum olur. o da açısal hız demek.
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