with tobacco, through Persia and the Silk Road. By the Qing Dynasty, it became the most popular method to smoke tobacco, but became less popular since the Republic era. While typically employed by commoners, the water pipe is known to have been preferred by Empress Dowager Cixi over snuff bottles or other methods of intake. According to the Imperial Household Department, she was buried with at least three water pipes; some of her collections can be seen in the Palace Museum. The water pipe employed since the Qing dynasty can be divided into two types: the homemade bamboo bong commonly made and used by country people, and a more elegant metal version employed by Chinese merchants, urbanites, and nobility. Metal utensils are typically made out of bronze or brass, the nobility version of silver and decorated with jewels. Typically, the metal version is made out of the following components: The water pipe itself, a single-piece construct consisting of the bowl-stem, the water container, and a drawtube at least 3 inches, but some can be up to 12 inches in length. Some are straight with a "Joint" (Sandblasted top part of stem, usually about 1 inch long, and all the way around, tapered or cone shaped, so the tapered, or "cone shaped" bowl will fit in)some are bent to resemble a crane. The size of the bowl is similar to that of a one-hitter, typically the width of a thumbnail or smaller. The tobacco container with a lid. A pipe rack small enough to be held by one hand, and consisting of two large holes for the tobacco container and the water pipe. It may have smaller holes to hold various pipe tools. During a smoking session, the user may keep all equipment inside the rack and just hold the entire assembly (rack, pipe, and container) in one hand, lighting the bowl with a slow-burning paper wick (纸煤) lit over a coal stove. Unlike in North America and the Southern Hemisphere, the water pipe is typically employed by older generations. Use The water can trap some heavier particles and water-soluble molecules, preventing them from entering the smoker's airways. The mechanics of a bong are compared to those of a laboratory gas washing bottle. The user puts their mouth at the top and places the cannabis in the tube, as shown in the picture. Bongs are often either glass or plastic that