In the Arezzo region, where this house is, prices are lower, ranging from 1 million to 4 million euros ($1.14 million to $4.56 million) depending on views and the condition of the property.
Isaac Newton, and others since his day, have shown that the Earth's precession is caused by the gravity of the Moon and Sun acting on the oblateness of the Earth. Since it can be calculated so accurately I have to believe it is true. The obliquity, or angle between the plane of the Earth's orbit and the axis, is about 23 degrees but varies between 22.1 and 24.5 degrees, in-phase with the precession circuit.
Most people know that the Earth revolves around the Sun in one year (actually. 365.24 days and we add one day to the calendar every four years, for a âleap. yearâ). Most also know that it takes 24 hours (actually 23 hours and 56 minutes) for the Earth to make a full rotation on its axis. Fewer people know that the Earthâs orbit is elliptical, or oval shaped, and that the Earth is sometimes slightly closer to the Sun than at other times, but this is not what causes the seasons, in fact we are closest to the Sun in January! Seasons are caused by the fact that the âEarth is tiltedâ (see Figure 1). What we mean by that is that the Earthâs axial tilt is at an angle of 23.5 degrees relative to the plane of the Ecliptic, its plane of orbit around the Sun. And the imaginary line, on which the Earth rotates, its axis, is tilted close to Polaris, the North Star.