angle of slope
111Alpine skiing — Alpine ski slope Highest governing body International Ski Federation Nickname(s) Downhill Sliding First played 1861, Kiandra, Aus …
112Self-arrest — is a mountaineering related maneuver in which a climber that has fallen and is sliding down a snow or ice slope arrests (stops) the slide by himself without recourse to a rope or other belay system.Self arrest can be performed by using an ice axe …
113Oceanic trench — Oceanic crust is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at trenches. The oceanic trenches are hemispheric scale long but narrow topographic depressions of the sea floor. They are also the… …
114climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …
115Sloped armour — is armour that is neither vertical nor horizontal and is typically mounted on tanks and other armoured fighting vehicles (AFVs). For a given normal to the surface of the armour, its plate thickness, increasing armour slope improves the armour s… …
116Ripple marks — Ancient wave ripple marks in sandstone, Moenkopi Formation, Capitol Reef National Park, Utah …
117physical science, principles of — Introduction the procedures and concepts employed by those who study the inorganic world. physical science, like all the natural sciences, is concerned with describing and relating to one another those experiences of the surrounding… …
118Geology of Mars — Mars   Mars as seen by the Hubble Space Telescope Designations …
119calligraphy — calligrapher, calligraphist, n. calligraphic /kal i graf ik/, calligraphical, adj. calligraphically, adv. /keuh lig reuh fee/, n. 1. fancy penmanship, esp. highly decorative handwriting, as with a great many flourishes: She appreciated the… …
120Parabola — For other uses, see Parabola (disambiguation). A parabola …
