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The V-scale doesn't consider risk and is purely focused on the technical difficulty of the movements. [2] The V-scale is the dominant scale in North America, and it and the Font scale are the most dominant systems worldwide; beyond the easiest grades, the two systems can be almost exactly aligned in comparison tables. [2] [14]
Toggle the table of contents. List of grade milestones in rock climbing. 1 language. Deutsch; ... Alex Honnold's 2017 free solo of Freerider (5.13a, 7c+), El Capitan.
The scale is a value or expression that is used as a factor to convert a value to its corresponding base unit. Commas may be used as a thousand separator (e.g. 1,000,000) or e notation may be used (e.g. 1e6). Fractions should be used when required for exactness (e.g. 1/12).
See Weight for detail of mass/weight distinction and conversion. Avoirdupois is a system of mass based on a pound of 16 ounces, while Troy weight is the system of mass where 12 troy ounces equals one troy pound.
The most dominant grading systems worldwide are the 'French numerical' and 'American YDS' systems for lead climbing, and the V-grade and the Font-grade for bouldering. As of January 2025, the hardest lead climbing grade is 9c (5.15d), and the hardest bouldering grade is V17 (9A).
The most famous route is The Nose whose aid ascent at 5.9 A2 was a major milestone in climbing, as was its eventual freeing at 5.14a. El Capitan has several other famous aid/big wall routes such as Salathé Wall (5.9 A2 aid, or 5.13b free) and the Salathé variant, Freerider , the most famous big wall free solo in history, and Dawn Wall , the ...
The factor–label method can convert only unit quantities for which the units are in a linear relationship intersecting at 0 (ratio scale in Stevens's typology). Most conversions fit this paradigm. An example for which it cannot be used is the conversion between the Celsius scale and the Kelvin scale (or the Fahrenheit scale). Between degrees ...
The volt-ampere (SI symbol: VA, [1] sometimes V⋅A or V A) is the unit of measurement for apparent power in an electrical circuit. It is the product of the root mean square voltage (in volts) and the root mean square current (in amperes). [2] Volt-amperes are usually used for analyzing alternating current (AC) circuits.