Bitemporal hemianopsia (or Bitemporal hemianopia) is the medical description of a type of partial blindness where vision is missing in the outer half of both the right and left visual field.
Global winds. Earthâs orbit around the sun and its rotation on a tilted axis causes some parts of Earth to receive more solar radiation than others. This uneven heating produces global circulation patterns.offsite link For example, the abundance of energy reaching the equator produces hot humid air that rises high into the atmosphere.
But there are many other planetary processes that either bog down or rev up the Earth's spin. Any large-scale interaction between parts of the Earth, such as ocean winds or movements of the planet's molten iron core against the solid mineral mantle, subtly speeds up or slows down the Earth's rotation.