Dipole model of the Earth's magnetic field (MLAT), or geomagnetic latitude, formula_10 is measured northwards from the equator (analogous to geographic latitude) and is related to formula_9 by formula_12. In this case, the radial and azimuthal components of the magnetic field (the latter still in the formula_9 direction, measured from the axis of the north pole) are given by formula_14 formula_15 formula_16 where formula_17 in this case has units of Earth radii (formula_18). Invariant latitude is a parameter that describes where a particular magnetic field line touches the surface of the Earth. It is given by formula_19 or formula_20 where formula_21 is the invariant latitude and formula_22
The Earth is Dancing The Earth is Dancing "The Earth is Dancing" (in Slovene: ""Zemlja pleše"") is a 1962 pop song, music of which was written by Mojmir Sepe based on a lyrics by Slovene poet Gregor Strniša that was awarded at the first edition of the Slovenian song festival where it was sung by a notable singer Marijana Držaj. The song became an evergreen, a popular and enduring example of Slovenian popular music. It has been since then released in a number of re-mixes. It also inspired one of the first musical videospots made in 1980s in Slovenia, at the time part of