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The golden angle is the angle subtended by the smaller (red) arc when two arcs that make up a circle are in the golden ratio. In geometry, the golden angle is the smaller of the two angles created by sectioning the circumference of a circle according to the golden ratio; that is, into two arcs such that the ratio of the length of the smaller arc to the length of the larger arc is the same as ...
A golden rectangle with long side a + b and short side a can be divided into two pieces: a similar golden rectangle (shaded red, right) with long side a and short side b and a square (shaded blue, left) with sides of length a. This illustrates the relationship a + b / a = a / b = φ.
using two radii to divide a circle according to the golden ratio yields sectors of approximately 137.51° (the golden angle) and 222° in degree system so 137 is the largest integer before it. In decimal notation, 1/137 = 0. 007 299 27, so its period value happens to be palindromic and has a period length of only 8. However, this is only ...
When there are three distances, the largest of the three always equals the sum of the other two. [1] Unless θ is a rational multiple of π , there will also be at least two distinct distances. This result was conjectured by Hugo Steinhaus , and proved in the 1950s by Vera T. Sós , János Surányi [ hu ] , and Stanisław Świerczkowski ; more ...
The next three largest parks are also in Alaska. The smallest park is Gateway Arch National Park, Missouri, at 192.83 acres (0.7804 km 2). The total area protected by national parks is approximately 52.4 million acres (212,000 km 2), for an average of 833 thousand acres (3,370 km 2) but a median of only 220 thousand acres (890 km 2). [8]
A 2019 paper published in PLOS One estimated that under Representative Concentration Pathway 4.5, a "moderate" scenario of climate change where global warming reaches ~2.5–3 °C (4.5–5.4 °F) by 2100, the climate of Alexandria in the year 2050 would most closely resemble the current climate of Gaza City. The annual temperature would ...
The Caspian Sea is the world's largest inland body of water, described as the world's largest lake and usually referred to as a full-fledged sea. [2] [3] [4] An endorheic basin, it lies between Europe and Asia: east of the Caucasus, west of the broad steppe of Central Asia, south of the fertile plains of Southern Russia in Eastern Europe, and north of the mountainous Iranian Plateau.
The following is a list of cities by sunshine duration.Sunshine duration is a climatological indicator, measuring duration of sunshine in given period (usually, a day or a year) for a given location on Earth, typically expressed as an averaged value over several years.