
 Darij Grinberg 
  The Mitten point of a triangle, defined as the perspector of the medial and excentral triangles, is shown to be the radical center of a variable circle triad. 
  It is shown that triangle XYZ is oppositely similar to triangle ABC, that the lines AX, BY, CZ pass through the Nagel point of triangle ABC, and that one of the segments OX, OY, OZ is equal to the sum of two others. 
  The note is on a new proof that the midpoints of the sides, the feet of the altitudes and the midpoints between the vertices and the orthocenter of a triangle lie on one circle. 
 de.geocities.com /darij_grinberg (3184 words) 
