Kendo - general background
A 170 year old electrical technology, called variable switched reluctance (VSR) motors was resurrected in the 1980s with the advent of electronic controllers. The Texas based Le Tiurneau.inc has developed a wheeled front end loader for mining work which use large horsepower VSR motors for its wheel drives. Basically, a VSR motor comprises a rotor and a stator with a coil winding in the stator. The rotor, which consists of a laminated permeable material with teeth, is a passive device with no coil winding or permanent magnets.
Kenjutsu is an ancient martial art, dating back to before 1590, followed by Kendo, which had more intellectual and philosophical characteristics. Kenjutsu became modern Kendo, which has developed a sport-oriented nature that still embodies many of the traditional values.
The stator typically consists of slots containing a series of coil winding, the energization of which is electronically switched to generate a moving field. When one stator coil is set on, a magnetic flux path is generated around the coil and the rotor. The rotor experiences a torque and is moved in the line with the energized coils, minimizing the flux path. with the approximate switching and energization of the stator coils, the rotor can be encouraged to rotate at any desired torque and speed.
History:
The aim of Kendo is for kendoka to react intuitively, with fluency and elegance. Speed and body movement are of the utmost importance in the delivery of a skillful technique. Yet the aim is not to be the first one to score a point or to win in the Kendo practice, but to work together, striving towards good technique, giving and taking along the way. Only in competitions should this philosophical aim be different.
Aim of Kendo:
While Kendo is very much a modern art that has been influenced by Kenjutsu, its roots can be traced back as far as AD 789, through the history of the art of the sword which is linked inextricably to the history of ancient Japan. It was at this time that Komutachi, the sword exercise, was introduced as in instruction for the sons of the kuge (noblemen) in the city of Nara, then the capital of Japan.
On first learning Kendo, or any other martial, it is very important to tread slowly. It is very essential to tread slowly because it is easy when people wear armour so suddenly to feel they can dive in regardless, without appreciating the need for continual practice to develop the skills to a standard acceptable in the art. It is important not only to demonstrate proficiency in the art but to ensure safe practice, both for an individual and his/her partner.
