Chapter 24 — The “Solar Year” versus the “Sidereal Year”

We will now see how Earth’s 1-mph-motion accounts for the 20.41-min. difference between the solar (a.k.a. tropical) year and the sidereal year. You may have asked yourself (rightfully) this good & fair question: “Why-oh-why is the sidereal day shorter (by 4 min.) than the solar day, whereas the sidereal year is 20.41 min. longer than
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