Yoga mats are specially fabricated mats used to prevent hands and feet slipping during asana practice in modern yoga as exercise. An early variety made of rubber carpet underlay, pioneered by the yoga teacher Angela Farmer in 1982, was called a sticky mat. Before modern times, meditative yoga and hatha yoga were practised on bare ground, sometimes with a dee...
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Mammography images are created by the process of x-rays passing through breast tissue and interacting with a digital detector. The anode in the x-ray tube used for mammography is made of molybdenum, or rhodium, rather than tungsten which is commonly used in general x-ray tubes. For more information about x-ray formation see the previous section (X-rays).
