cross equator
31Long Mynd — The Long Mynd in Shropshire, England, is a part of the Shropshire Hills Area of Outstanding Natural Beauty. It is convert|10|mi|km south of the county town Shrewsbury, and has an area of over 22 square kilometres (8.5 sq mi). The name Long Mynd… …
32Tropical cyclone — Hurricane redirects here. For other uses, see Hurricane (disambiguation). Hurricane Isabel (2003) as seen from orbit during Expedition 7 of the International Space Station. The eye, eyewall and surrounding rainbands that are characteristics of… …
33Geology of Mars — Mars   Mars as seen by the Hubble Space Telescope Designations …
34Balanced flow — In atmospheric science, balanced flow is an idealisation of atmospheric motion. The idealisation consists in considering the behaviour of one isolated parcel of air having constant density, its motion on a horizontal plane subject to selected… …
35Differential rotation in stars — What is differential rotation? *Differential rotation is when a rotating body has different angular velocities at different latitudes and/or depths of the body and/or in time. Differential rotation can be applied to any type of fluid body such as …
36Sundial — A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal sundial, the sun casts a shadow from its style (a thin rod or a sharp, straight edge) onto a flat surface marked with lines indicating… …
37fluid mechanics — an applied science dealing with the basic principles of gaseous and liquid matter. Cf. fluid dynamics. [1940 45] * * * Study of the effects of forces and energy on liquids and gases. One branch of the field, hydrostatics, deals with fluids at… …
38Geography and wealth — Latitude and wealth have long been perceived as correlated attributes of nations. [ [http://www.arec.umd.edu/people/faculty/jhorowitz/Income Temp i.pdf The Income Temperature Relationship in a Cross Section of Countries and its Implications for… …
39Circle of latitude — Map of Earth Longitude (λ) Lines of longitude appear vertical with varying curvature in this projection, but are actually halves of great ellipses, with identical radii at a given latitude. Latitude (φ) Lines of latitude appear …
40L-shell — The L shell, L value, or McIlwain L parameter (after Carl McIlwain) is a parameter describing a particular set of planetary magnetic field lines. Colloquially, L value often describes the set of magnetic field lines which cross the Earth s… …
