In astrophysics, a magnetic mirror point is a point where the motion of a charged particle trapped in a magnetic field (such as the Earth's) reverses its direction. More precisely, it is the point where the projection of the particle's velocity vector in the direction of the field vector is equal to zero.
Famous quotes containing the words magnetic, mirror and/or point:
“We are in great haste to construct a magnetic telegraph from Maine to Texas; but Maine and Texas, it may be, have nothing important to communicate.”
—Henry David Thoreau (1817–1862)
“The adjustment of qualities is so perfect between men and women, and each is so necessary to the other, that the idea of inferiority is absurd.”
—“Jennie June” Croly 1829–1901, U.S. founder of the woman’s club movement, journalist, author, editor. Demorest’s Illustrated Monthly and Mirror of Fashions, p. 204 (August 1866)
“The end of all stories, even if the writer forebears to mention it, is death, which is where time stops short. Sheherezade knew this, which is why she kept on spinning another story out of the bowels of the last one, never coming to a point where she could say: “This is the end.” Because it would have been.”
—Angela Carter (1940–1992)