The second most common type of the condition is known as ocular albinism, in which only the eyes lack color; skin and hair are normal. There are five forms of ocular albinism; some types cause more problems-especially eye problems-than others.
Electric Field at the Center of a Semicircle. electric field of a semicircle on a point The rectangular part of the field is 100 yds long and the diameter of each semicircle is 44 yds Electric magnitude of semicircle
The magnitude varies over the surface of the Earth in the range 0.3 to 0.6 Gauss. Magnetic fields surround electric currents, so we surmise that circulating electic currents in the Earth's molten metalic core are the origin of the magnetic field. A current loop gives a field similar to that of the earth.