These points were selected by taking the line between centre of the hemisphere and base point as reference and offsetting by 15?until the pole point was reached.
12.
The tangent line " t " and the tangent point "'T "'have a conjugate relationship to one another, which has been generalized into the idea of pole points and polar lines.
13.
Lightcurve analysis indicates that Massalia's pole points towards either ecliptic coordinates ( ?, ? ) = ( 45? 10?) or ( ?, ? ) = ( 45? 190?) with a 10?uncertainty.
14.
At the present time, Triton's rotational axis is about 40?from Neptune's orbital plane, and hence at some point during Neptune's year each pole points fairly close to the Sun, almost like the poles of Uranus.
15.
Just as the Riemann sphere needs a north pole point at infinity to close up the complex projective line, so a line at infinity succeeds in closing up the plane of dual numbers to a cylinder.
16.
Since the distances from that pole point to the tangent points "'A "'1 and "'B "'1 are equal, this pole point must also lie on the radical axis " R " of the solution circles, by definition ( Figure 9 ).
17.
Since the distances from that pole point to the tangent points "'A "'1 and "'B "'1 are equal, this pole point must also lie on the radical axis " R " of the solution circles, by definition ( Figure 9 ).
18.
Winds tend to blow north, away from the pole, ( can't remember the name for this-katabatic wind ? ), and-as the article on the South Pole points out, precipitation is very low, with most of the snow at the pole driven there by wind.
19.
:Your description is a bit value, but I'll assume the dipole axis of the magnet is perpendicular to the axis of the cylinder, i . e . that rotating the magnet in the hole moves the poles, and that in the " on " position one of the poles points towards the bottom of the base.
