cloud layer
71Airship Italia — was a semi rigid airship used by Umberto Nobile in his second series of flights around the North Pole. Design and specifications Italia was an N class semirigid airship, designation N4. In design it was almost identical to the N1 Norge but larger …
72dust — {{Roman}}I.{{/Roman}} noun ADJECTIVE ▪ fine ▪ airborne ▪ radioactive ▪ house, household ▪ desert (esp. AmE …
73Floating city (science fiction) — In science fiction, floating cities are settlements that strictly use buoyancy to remain in the atmosphere of a planet. However the term generally refers to any city that is flying, hovering, or otherwise suspended in the air via any means… …
74Venus in the fiction of Leigh Brackett — Venus and Venusians are frequently appearing settings and characters for many of the Solar System stories of Leigh Brackett. Brackett s Venus shares some characteristics with the astronomical Venus, but in other respects functions as a consistent …
75Hail — is a form of precipitation which consists of balls or irregular lumps of ice (hailstones). Hailstones usually consist mostly of water ice and measure between 5 and 150 millimeters in diameter, with the larger stones coming from severe… …
76List of fictional planets by medium — This is a list of fictional planets organized by the medium in which they primarily appear.Novels and short stories =Adams, Douglas= *Brontitall The Hitchhiker s Guide to the Galaxy (radio series); planet of bird people who live in the ear of a… …
77Extraterrestrial liquid water — Extraterrestrial liquid water, the presence of water in its liquid state, is a subject of wide interest because it is a commonly suggested prerequisite for the emergence of extraterrestrial life. Earth, with oceanic water covering 71% of its… …
78Station model — A station model is a symbolic illustration showing the weather occurring at a given reporting station. Meteorologists created the station model to plot a number of weather elements in a small space on weather maps. Maps filled with dense station… …
79Ceiling balloon — A ceiling balloon is used by meteorologists to determine the height of the base of clouds above ground level during daylight hours.The principle behind the ceiling balloon is a balloon with a known ascent rate (how fast it climbs) and determining …
80Flight ceiling — A flight ceiling is the upper altitudinal limit at which any aircraft may fly given its mechanical abilities. For aviation purposes, ceiling is defined as the height (AGL) of the lowest broken or overcast layer aloft or vertical visibility into… …
