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A thermal manikin being used to test helmet padding. The thermal manikin is a human model designed for scientific testing of thermal environments without the risk or inaccuracies inherent in human subject testing. Thermal manikins are primarily used in automotive, indoor environment, outdoor environment, military and clothing research. The ...
Mannequins in a clothing shop in Canada A mannequin in North India. A mannequin (sometimes spelled as manikin and also called a dummy, lay figure, or dress form) is a doll, often articulated, used by artists, tailors, dressmakers, window dressers and others, especially to display or fit clothing and show off different fabrics and textiles.
D3O has various applications, such as in electronics (low-profile impact protection for phones, laptops, and other electronic devices), [20] sports (protective equipment), [21] motorcycle riding gear, [22] defence (helmet liners and body protection; footwear) [23] and industrial workwear (personal protective equipment such as gloves, knee pads and metatarsal guards for boots).
A challenge for the Army has been to develop a crash test dummy that moves enough like a human body to get an accurate result. The Army is working to make the mannequin "biofidelic," meaning it can match human movement. At 5-feet-11-inches tall and 185 lbs., WIAMan is based on the size and movement of an average soldier. [34]
Water crystal gel or water beads or gel beads is any gel which absorbs and contains a large amount of water. Water gel is usually in spherical form and composed of a water-absorbing superabsorbent polymer (SAP, also known as slush powder in dry form) such as a polyacrylamide (frequently sodium polyacrylate ).
Drop of water on 100% polyester textile. Waterproof/breathable fabrics resist liquid water passing through, but allow water vapour to pass through. Their ability to block out rain and snow while allowing vapour from sweat to evaporate leads to their use in rainwear, waterproof outdoor sports clothing, tents, and other applications.
After these steps the plate needed rinsing in fresh water. Finally, the plate was dried and varnished using a varnish made from sandarac, alcohol and lavender oil. Dark tents to be used outdoors consisted of a small tent that was tied around the photographer's waist. Otherwise a wheelbarrow or a horse and covered wagon were used.
Before the development of these substances, the best water absorbing materials were cellulosic or fiber-based like tissue paper, sponge, cotton, or fluff pulp. These materials can only retain 20 times their weight in water, whereas sodium polyacrylate can retain hundreds of times its weight in water.