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A hermetic seal is any type of sealing that makes a given object airtight (preventing the passage of air, oxygen, or other gases). The term originally applied to airtight glass containers but, as technology advanced, it applied to a larger category of materials, including metals , rubber , and plastics .
Recessed in the lid is a silver plate in the form of a heart, with an engraved inscription containing Frederic Chopin's birth and death dates. This box is surrounded by lead plates for protection from moisture. Inside this box is a large crystal jar hermetically sealed, in which, in transparent alcohol, is Chopin's perfectly preserved heart.
Gulliver's Travels, originally Travels into Several Remote Nations of the World.In Four Parts. By Lemuel Gulliver, First a Surgeon, and then a Captain of Several Ships is a 1726 prose satire [1] [2] by the Anglo-Irish writer and clergyman Jonathan Swift, satirising both human nature and the "travellers' tales" literary subgenre.
Canning is a method of food preservation in which food is processed and sealed in an airtight container (jars like Mason jars, and steel and tin cans). Canning provides a shelf life that typically ranges from one to five years, [ a ] although under specific circumstances, it can be much longer. [ 2 ]
The phrase "hermetically sealed" originates from alchemical practices and refers to an airtight sealing method used in laboratories. This term became a metaphor for the safeguarding of esoteric knowledge, representing the idea that such wisdom should be kept hidden from the uninitiated.
Taking this one stage further, the clue word can hint at the word or words to be abbreviated rather than giving the word itself. For example: "About" for C or CA (for "circa"), or RE. "Say" for EG, used to mean "for example". More obscure clue words of this variety include: "Model" for T, referring to the Model T.
In the 1930s, company owner Wilbert Haase, who had an interest in Egyptian mummification, began promoting the sealed (or "waterproof") vault as a means of allegedly protecting the body from water, microbes, and vermin. The Haase company later purchased several plastics companies, and began manufacturing plastic burial vaults as well.
Perhaps the most common use of induction sealing is cap sealing, a non-contact method of heating an inner seal [1] [2] to hermetically seal the top of plastic and glass containers. This sealing process takes place after the container has been filled and capped. [3] An induction sealed inner seal