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The pitch of a roof is its vertical 'rise' over its horizontal 'run’ (i.e. its span), also known as its 'slope'. In the imperial measurement systems, "pitch" is usually expressed with the rise first and run second (in the US, run is held to number 12; [1] e.g., 3:12, 4:12, 5:12). In metric systems either the angle in degrees or rise per unit ...
8.33%(1 in 12) – Nilgiri Mountain Railway Tamil Nadu, India; 8.0% (1 in 12.5) – Just outside the Tombstone Jct. Station in the Tombstone Junction Theme Park, Kentucky, US. The railroad line there had a ruling grade of 6% (1 in 16.7). 7.85% (1 in 12.7) – Near Washington Street station on the Green Line B branch, Boston, Massachusetts, US. [20]
In set theory, for instance, the 12 degrees of the chromatic scale are usually numbered starting from C=0, the twelve pitch classes being numbered from 0 to 11. In a more specific sense, scale degrees are given names that indicate their particular function within the scale (see table below).
The 16-pitch El Capitan route Zodiac, is graded 5.7 (American), A2+ (A-grade), VI (NCCS) with aid; or 5.13d (American), VI (NCCS) free The National Climbing Classification System (NCCS) was devised in the 1960s by the Sierra Club as "commitment grade" for mountaineering routes, and in particular, the time investment in a route for an "average ...
Comparison between tunings: Pythagorean, equal-tempered, quarter-comma meantone, and others.For each, the common origin is arbitrarily chosen as C. The degrees are arranged in the order or the cycle of fifths; as in each of these tunings except just intonation all fifths are of the same size, the tunings appear as straight lines, the slope indicating the relative tempering with respect to ...
A major feature of the blues scale is the use of blue notes—notes that are played or sung microtonally, at a slightly higher or lower pitch than standard. [5] However, since blue notes are considered alternative inflections, a blues scale may be considered to not fit the traditional definition of a scale. [6]
Angels closer Ben Joyce threw a 105.5-mph fastball to strike out Dodgers' Tommy Edman, making the pitch the fastest recorded to fan a hitter and third-fastest overall.
Standard values are 14.5 and 20 degrees. [2] Earlier gears with pressure angle 14.5 were commonly used because the cosine is larger for a smaller angle, providing more power transmission and less pressure on the bearing; however, teeth with smaller pressure angles are weaker. To run gears together properly their pressure angles must be matched. [3]