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What are martial arts?

Martial arts are fighting techniques that often stress hand and foot combat methods. It most often thought of as a type of self-defense technique that is Asian in origin, although there are practices that have been adopted and honed from other places. Although martial...

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A Brief Look at a 347 Stainless Steel Tube

One of the problems that are encountered in any aircraft design is that there are numerous parts that are required to be highly resistant to expansion or degradation when heated. This has challenged engineers for decades and recent times have allowed the industry to...

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