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An earmold (also spelled; ear mold, ear mould or earmould) is a device worn inserted into the ear for sound conduction or hearing protection. Earmolds are anatomically shaped and can be produced in different sizes for general use or specially cast from particular ear forms. [ 1 ]
Once molded, and clay removed, new mold cleaned out, the positive is one part of the mold and the new mold is the other side which has the negative of the newly sculpted prosthetic. This gives two or more pieces of a mold - a positive of the face or body part, and one (or more for complex molds) "negative" mold pieces with prosthetic sculpted in.
Alginate is used as an ingredient in various pharmaceutical preparations, such as Gaviscon, in which it combines with bicarbonate to inhibit gastroesophageal reflux. [citation needed] Sodium alginate is used as an impression-making material in dentistry, prosthetics, lifecasting, and for creating positives for small-scale casting. [citation needed]
In-ear monitors are custom-made devices that allow musicians to hear themselves and their band while still blocking out the surrounding noise. Newscasters also wear a similar earpiece to allow ...
Lost-wax casting: Automated machines: December 7, 2002 Season 3 (2003) Series Ep. Episode ... Ear prostheses: November 27, 2014 24-09: 308: Recycled skateboards:
Wax is normal and good for the ear. “A lot of people associate ear wax with being dirty or unclean, so there’s this kind of aggressive need to keep the ears cleaned out in some way, but we ...
One key in casting metal cores is to make sure they do not contain any porosity as it will induce flaws into the molded part. In order to minimize porosity the metal may be gravity cast or the molding cavity may be pressurized. Another system slowly rocks the casting dies as the molding cavity fills to "shake" the air bubbles out. [9]
Similar metal artifact types are found in West Mexico and the two regions: copper rings, needles, and tweezers being fabricated in the same ways as in Ecuador and also found in similar archaeological contexts. A multitude of bells were also found, but in this case they were cast using the same lost-wax casting method as seen in Colombia. [40]
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