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A spacetime diagram is a graphical illustration of locations in space at various times, especially in the special theory of relativity.Spacetime diagrams can show the geometry underlying phenomena like time dilation and length contraction without mathematical equations.
Local mean time (LMT) is a form of solar time that corrects the variations of local apparent time, forming a uniform time scale at a specific longitude. This measurement of time was used for everyday use during the 19th century before time zones were introduced beginning in the late 19th century; it still has some uses in astronomy and navigation.
Converted small area of fishing camps west of Suomi ON from CST/CDT to EST/EDT; this improves alignment with boundaries shown on the official Ontario road map. Also applied a few cosmetic changes. 23:33, 25 October 2020: 1,114 × 942 (381 KB) MapGrid: Time zone boundary adjustment in the vicinity of Schefferville.
Name used in the default map caption; image = Edmonton agglomeration-blank.svg The default map image, without "Image:" or "File:" top = 53.72 Latitude at top edge of map, in decimal degrees; bottom = 53.392 Latitude at bottom edge of map, in decimal degrees; left = -113.719 Longitude at left edge of map, in decimal degrees; right = -113.24 ...
In general, wave quality for surfing is usually better with less wind. If there is wind, wave quality is better if the wind is blowing gently offshore (away from the coast, towards the water.) This offshore airflow helps to hold up the face of breaking waves slightly longer, allowing a surfer to have more time to maneuver on the face of the ...
Spring and autumn are both short and highly variable. Edmonton's growing season is from May 9 to September 22; [4] [11] Edmonton averages 135–140 frost-free days a year. [4] [12] At the summer solstice, Edmonton receives 17 hours and three minutes of daylight, with an hour and 46 minutes of civil twilight. [13]
Edmonton is home to Alberta Innovates, a provincially-funded applied research and development corporation based in Edmonton's Bell Tower. [198] Edmonton is the major economic centre for northern and central Alberta and a major centre for the oil and gas industry. As of 2014, the estimated value of major projects within the Edmonton Metropolitan ...
To relate radar timing to distances traveled by radar energy, the speed is used to calculate it. With speed of radar waves at approximately the speed of light in vacuum or 299,792,458 metres per second (300 m/μs; 984 ft/μs) and nautical mile at 1,852 metres (6,076 ft), the delay per nautical mile until the wave return is calculated as: