DARK MATTER DENSITY AS A FUNCTION OF THE TIME OF YEAR

Abstract

Until recently I had been assuming from the data taken that the dark matter wave velocity on earth is close to 25 m/s. The density of dark matter is apparently proportional to the reciprocal of the wave velocity squared. I found velocities for 2011 using my interchange method described in my 2010 Physics Essays' article. The data therein was taken near the first of May 2009. Beginning in September 2011, the large amplitude wave velocity was found near 1000 m/s, and increased to more than 20,000 m/s in October in the Northern hemisphere. Apparently one has to take into account the location and tilt of the earth in the dark matter standing wave pattern produced by the sun. I assume that the earth lies at least partially on an antinode for part of the year rather than on a node compared to most of the other planets. The antinode location and dark matter density varies on the earth's surface because the earth's orbit location and tilt varies as a function of the time of year with the tilt determining spring, summer, and winter in the Southern and Northern hemispheres.