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Jiu-jitsu Gi
The Brazilian jiu-jitsu gi is the training uniform adapted from the judo ''keikogi'' ( 稽 古 着) for use in Brazilian jiu-jitsu. A ''gi'' ( 着), meaning dress or clothes, is composed of a heavy cotton jacket, reinforced drawstring pants, and a belt which communicates rank. Some schools require the jacket and trousers to be the same color, while more relaxed schools do not enforce matching top and bottom color. The Brazilian jiu-jitsu gi is often referred to as ''kimono'' by Brazilians. Some Jiu-Jitsu schools avoid using a gi and instead focus on no-gi jiu-jitsu; 10th Planet Jiu Jitsu is an example of this. General regulations The only colors allowed for international championships are white, black or blue. In some jurisdictions, this is relaxed to allow any single solid color. According to article 8 of IBJJF rules, a competition gi must conform to these specifications: * The gi must be constructed of cotton or similar material and be in good condition. The material ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kowal And Fox-BJJ-cropped
Kowal may refer to: *Kowal (surname), a surname *Kowal (town), a town in Poland *Kowal (gmina), a ''gmina'' (administrative district) in Poland *99P/Kowal, a periodic comet See also * *Koval (other) *Kowall, a surname {{Disambig, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyester
Polyester is a category of polymers that contain one or two ester linkages in every repeat unit of their main chain. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include some naturally occurring chemicals, such as those found in plants and insects. Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not. Synthetic polyesters are used extensively in clothing. Polyester fibers are sometimes spun together with natural fibers to produce a cloth with blended properties. Cotton-polyester blends can be strong, wrinkle- and tear-resistant, and reduce shrinking. Synthetic fibers using polyester have high water, wind, and environmental resistance compared to plant-derived fibers. They are less Fireproofing, fire-resistant and can melt when ignited. Liquid crystalline polyesters are among the first industrially used liquid crystal polymers. They are used for their mechanical propert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gracie Jiu-jitsu Ranking System
The Gracie jiu-jitsu ranking system is a method of signifying competency and moral character of a Brazilian jiu-jitsu, jiu-jitsu practitioner, developed by founders Carlos Gracie, Carlos and Hélio Gracie, and utilized by members of the Gracie family. Similar to the International Brazilian Jiu-Jitsu Federation, IBJJF Brazilian jiu-jitsu ranking system, the Gracie system has a number of key differences. Most notable is the half-color ranks included in the junior level, making for a larger series of ranks for practitioners under the age of 16 years old. Bars and stripes / degrees Having its roots in the Japanese martial art and sport of judo, Gracie/Brazilian jiu-jitsu adopted a similar colored belt system to signify a practitioner's progression within the art. However, to differentiate Brazilian jiu-jitsu from the other disciplines, a solid bar was included on the belt near one of the ends. As a practitioner advances, stripes are awarded and placed at equidistant intervals on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keikogi
(, 'practice', , 'dress' or 'clothes'), also known as or , is a traditional uniform worn for training in Japanese martial arts and their derivatives. Emerging in the late 19th century, the was developed by judo founder Kanō Jigorō. Origin Japanese martial arts historian Dave Lowry speculates that Kanō derived the uniform's design from the uniforms of Japanese firefighters' heavy hemp jackets, . By 1920, the as it exists today was worn by Kanō's students for judo practice; a photo displayed in the Kodokan (judo headquarters) taken in 1920 shows Kanō himself wearing a modern . Until the 1920s, Okinawan karate practice was usually performed in everyday clothes. Given the social climate between the Japanese and Okinawans during this time, karate was seen as brutish compared to Japanese martial arts, which had their roots in samurai culture, such as jujutsu. To help market karate to the Japanese, Gichin Funakoshi – the founder of Shotokan karate and the instructor respon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Judogi
''Judogi'' (柔道着 or 柔道衣), also called keikogi or dogi, is the formal Japanese language, Japanese name for the traditional uniform used for Judo practice and competition. A judogi is somewhat similar to a karategi (空手着 or 空手衣, "karate uniform") as it shares a common origin. Jigoro Kano derived the original judogi from the kimono and other Japanese garments around the turn of the 20th century, and, as such, the judogi was the first modern martial arts training uniform. Over the years, the sleeves and pants have been lengthened, the material and fit have changed, the traditional unbleached cotton is now a bleached white, and blue judogi has become available; nevertheless, the uniform is still very close to that used 100 years ago. Other martial arts, notably karate, later adopted the style of training uniform that is used in Judo. A judogi comprises three parts that are usually cut from different fabrics: a very heavy jacket (uwagi), lighter canvas pants (shit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drying Machine
A clothes dryer (tumble dryer, drying machine, drying device, or simply dryer) is a powered household appliance that is used to remove moisture from a load of clothing, bedding and other textiles, usually after they are washed in the washing machine. Many dryers consist of a rotating drum called a "tumbler" through which heated air is circulated to evaporate moisture while the tumbler is rotated to maintain air space between the articles. Using such a machine may cause clothes to shrink or become less soft (due to loss of short soft fibers). A simpler non-rotating machine called a "drying cabinet" may be used for delicate fabrics and other items not suitable for a tumble dryer. Other machines include steam to de-shrink clothes and avoid ironing. Tumble dryers Tumble dryers continuously draw in the ambient air around them and heat it before passing it through the tumbler. The resulting hot, humid air is usually vented outside to make room for more air to continue the drying proce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunlight
Sunlight is the portion of the electromagnetic radiation which is emitted by the Sun (i.e. solar radiation) and received by the Earth, in particular the visible spectrum, visible light perceptible to the human eye as well as invisible infrared (typically perceived by humans as warmth) and ultraviolet (which can have physiological effects such as sunburn) lights. However, according to the American Meteorological Society, there are "conflicting conventions as to whether all three [...] are referred to as light, or whether that term should only be applied to the visible portion of the spectrum." Upon reaching the Earth, sunlight is light scattering by particles, scattered and attenuation, filtered through the atmosphere of Earth, Earth's atmosphere as daylight when the Sun is above the horizon. When direct solar radiation is not blocked by clouds, it is experienced as sunshine, a combination of bright light and radiant heat (atmospheric). When cloud cover, blocked by clouds or dif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vinegar
Vinegar () is an aqueous solution of diluted acetic acid and trace compounds that may include flavorings. Vinegar typically contains from 5% to 18% acetic acid by volume. Usually, the acetic acid is produced by a double fermentation, converting simple sugars to ethanol using yeast and ethanol to acetic acid using acetic acid bacteria. Many types of vinegar are made, depending on source materials. The product is now mainly used in the culinary arts as a flavorful, acidic cooking ingredient or in pickling. Various types are used as condiments or garnishes, including balsamic vinegar and malt vinegar. As the most easily manufactured mild acid, it has a wide variety of industrial and domestic uses, including functioning as a household cleaner. Etymology The word "vinegar" arrived in Middle English from Old French (''vyn egre''; sour wine), which in turn derives from Latin: (wine) + (neuter gender of , sour). Vinegar was formerly also called . The word "acetic" derives from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UV Light
Ultraviolet radiation, also known as simply UV, is electromagnetic radiation of wavelengths of 10–400 nanometers, shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight and constitutes about 10% of the total electromagnetic radiation output from the Sun. It is also produced by electric arcs, Cherenkov radiation, and specialized lights, such as mercury-vapor lamps, tanning lamps, and black lights. The photons of ultraviolet have greater energy than those of visible light, from about 3.1 to 12 electron volts, around the minimum energy required to ionize atoms. Although long-wavelength ultraviolet is not considered an ionizing radiation because its photons lack sufficient energy, it can induce chemical reactions and cause many substances to glow or fluoresce. Many practical applications, including chemical and biological effects, are derived from the way that UV radiation can interact with organic molecules. These i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
