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7/21/2025, 9:29:50 PM
>>510989307
You know you can easily tell North-South from a watch during daylight? If you point the hour hand at the Sun, South lies halfway between the hour hand and the 12 hour mark.
That’s because a clock is calibrated to roughly 2:1 ratio with respect to the Sun’s rotation. That is, the Sun takes twelve hours of daylight to make a half circle through the southern sky, while the clock passes a full circle in that same time. Ergo, you’re dividing the distance the hour hand has moved in half to get the physical direction corresponding to noon, which is due South.
You know you can easily tell North-South from a watch during daylight? If you point the hour hand at the Sun, South lies halfway between the hour hand and the 12 hour mark.
That’s because a clock is calibrated to roughly 2:1 ratio with respect to the Sun’s rotation. That is, the Sun takes twelve hours of daylight to make a half circle through the southern sky, while the clock passes a full circle in that same time. Ergo, you’re dividing the distance the hour hand has moved in half to get the physical direction corresponding to noon, which is due South.
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