look over the horizon meaning

From this, he can calculate his distance from the building: It is similarly possible to calculate how much of a distant object is visible above the horizon. If the observer is close to the surface of the earth, then it is valid to disregard h in the term (2R + h), and the formula becomes-, Using kilometres for d and R, and metres for h, and taking the radius of the Earth as 6371 km, the distance to the horizon is, Using imperial units, with d and R in statute miles (as commonly used on land), and h in feet, the distance to the horizon is. When you look out your window and note the furthest point you can see––the line where the sky meets the earth––that edge is called the horizon. Thus, the horizon on Mercury is 62% as far away from the observer as it is on Earth, on Mars the figure is 73%, on the Moon the figure is 52%, on Mimas the figure is 18%, and so on. The angles ψ and Which preposition would fit this sentence better? For an observer standing on a hill or tower 30 metres (98 ft) above sea level, the horizon is at a distance of 19.6 kilometres (12.2 mi). The word horizon derives from the Greek "ὁρίζων κύκλος" horizōn kyklos, "separating circle",[3] where "ὁρίζων" is from the verb ὁρίζω horizō, "to divide", "to separate",[4] which in turn derives from "ὅρος" (oros), "boundary, landmark".[5]. The 4/3 factor is not exact, as in the visual case the refraction depends on atmospheric conditions. He counts the storeys he can see, and finds there are only ten. Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you The refraction must be found by integration of, where {\displaystyle h} You can look beyond the horizon. where the constant 1.22 has units of mi/ft½. horizon synonyms, horizon pronunciation, horizon translation, English dictionary definition of horizon. {\displaystyle R} At the horizon, the line of sight is a tangent to the Earth and is also perpendicular to Earth's radius. The distance s can also be expressed in terms of the line-of-sight distance d; from the second figure at the right. referring to the second figure at the right leads to the following: The exact formula above can be expanded as: where R is the radius of the Earth (R and h must be in the same units). The true horizon is actually a theoretical line, which can only be observed when it lies on the sea surface. is the observer's height above the surface and For an observer standing on a hill or tower 100 metres (330 ft) above sea level, the horizon is at a distance of 36 kilometres (22 mi). When you are thinking about your life, it can be difficult to get very far beyond where you are. where DBL is in kilometres and hB and hL are in metres. When observed from very high standpoints, such as a space station, the horizon is much farther away and it encompasses a much larger area of Earth's surface. Outside the visual wavelength range, refraction will be different. the line at which the sky and Earth appear to meet, the range of interest or activity that can be anticipated, a specific layer or stratum of soil or subsoil in a vertical cross section of land, a spatial location defined by a real or imaginary unidimensional extent, a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center, an area in which something acts or operates or has power or control: "the range of a supersonic jet", the top layer of a soil profile; usually contains humus, immediately below the A-horizon; contains deposits of organic matter leached from surface soils, beneath the B-horizon and above the bedrock; consisting of weathered rock, a layer of rock with a particular composition (especially of fossils); for dating the stratum, one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock). The horizon or skyline is the apparent line that separates earth from sky, the line that divides all visible directions into two categories: those that intersect the Earth's surface, and those that do not.The true horizon is actually a theoretical line, which can only be observed when it lies on the sea surface. This correction can be, and often is, applied as a fairly good approximation when atmospheric conditions are close to standard. z From a point above Earth's surface, the horizon appears slightly convex; it is a circular arc. While similar in ways to the geometrical horizon, in this context a horizon may be considered to be a plane in space, rather than a line on a picture plane. In this equation Earth's surface is assumed to be perfectly spherical, with r equal to about 6,371 kilometres (3,959 mi). Let's say that someone is in one of those 'existential moods' when they ponder over the meaning of life. Actually, atmospheric refraction allows the observer to see 300 metres farther, moving the true horizon 5 km away from the observer. I wouldn't be able to see the setting sun either. When looking at a sea from a shore, the part of the sea closest to the horizon is called the offing. At many locations, this line is obscured by land, trees, buildings, mountains, etc., and the resulting intersection of earth and sky is called the visible horizon. {\displaystyle \kappa } h Below you will find our collection of inspirational, wise, and humorous old horizon quotes, horizon sayings, and horizon proverbs, collected over the years from a variety of sources. Usually, the density of the air just above the surface of the Earth is greater than its density at greater altitudes. Mm, I think in this specific context I'm fine with "over the horizon" since to me it would imply a sort of aimless gazing (not that they're looking somehow, since to me it would imply a sort of aimless gazing. where h is height above sea level and R is the Earth radius. is always ≥ 90°. JavaScript is disabled. As an approximate compensation for refraction, surveyors measuring distances longer than 100 meters subtract 14% from the calculated curvature error and ensure lines of sight are at least 1.5 metres from the ground, to reduce random errors created by refraction. His horizon is: kilometres from him, which comes to about 11.3 kilometres away. Due to atmospheric refraction the distance to the visible horizon is further than the distance based on a simple geometric calculation. People expecting a baby often put much of their focus on infancy––having a child who can sit up or even walk is beyond the horizons of their thinking. Horizon Sayings and Quotes. h In a chapter titled "Horizon", John Stillwell recounted how projective geometry has led to incidence geometry, the modern abstract study of line intersection.