Vacuum flask
A vacuum flask (also known as a Dewar flask, Dewar bottle or Thermos) is an insulating storage vessel that greatly lengthens the time over which its contents remain hotter or cooler than the flask's surroundings. Invented by Sir James Dewar in 1892, the vacuum flask consists of two flasks, placed one within the other and joined at the neck. The gap between the two flasks is partially evacuated of air, creating a near-vacuum which significantly reduces heat transfer by conduction or convection.
Vacuum flasks are used domestically to keep beverages hot or cold for extended periods of time and for many purposes in industry.
History
The vacuum flask was designed and invented by Scottish scientist Sir James Dewar in 1892 as a result of his research in the field of cryogenics and is sometimes called a Dewar flask in his honour. While performing experiments in determining the specific heat of the element of palladium, Dewar formed a brass chamber that he enclosed in another chamber to keep the palladium at its desired temperature. He evacuated the air between the two chambers creating a partial vacuum to keep the temperature of the contents stable. Through the need for this insulated container, James Dewar created the vacuum flask which became a significant tool for chemical experiments but also became a common household item. The flask was later developed using new materials such as glass and aluminum; however, Dewar refused to patent his invention.
Thermos (Aetolia)
Thermos (/ˈθɜːrmɒs/; also known as Thermon /ˈθɜːrmən/ or Thermum; Greek: Θέρμος) was an ancient Greek sanctuary, which served as the regular meeting place of the Aetolian League. Its focal point was the temple of Apollo Thermios famous for the archaic terra cotta metopes decorated with painted scenes from mythology which are among the earliest examples of this art form in Greece.
Thermos was already an important regional centre in the prehistoric period: a long apsidal building (with one rounded end—'Megaron A'), elliptical and square houses with finds of pottery in the Middle Helladic tradition together with imports of high quality Mycenaean pottery can all be dated to the Late Helladic IIA period c. 1500 BC. This settlement continued to flourish throughout the Mycenaean period, even after the destruction of the Mycenaean palaces (LH IIIC, 1200-1100 BC) when a fine krater (large bowl) decorated with warriors in the same style as the well-known Warrior Vase found by Heinrich Schliemann at Mycenae was brought to the site.
Tarì
A tarì (طري lit. "fresh" or "newly minted money" in Arabic) was the Christian designation of a type of gold coin of Islamic origin minted in Sicily, Malta and Southern Italy from about 913 to 1859.
History
In the Islamic world, this type of coin was designated under the name ruba'i, or quarter-dinar, as it weighed 1.05g of gold. The ruba'i had been minted by the Muslims in Sicily, unlike the Muslim rulers of North Africa, who preferred the larger dinar. It became highly popular as it was smaller and therefore more convenient than the large-sized 4.25g dinar.
The tarì were so widespread that imitations were made in southern Italy (Amalfi and Salerno) from the mid-tenth century, which only used illegible "pseudo-Kufic" imitations of Arabic. When the Normans invaded Sicily in the 12th century, they issued tarì coins bearing legends in Arabic and Latin.Roger II of Sicily issued such coins, becoming the only Western ruler at that time to mint gold coins. Their title was 161⁄3 carat, with some adjunction of silver and copper. The tarì were also produced by the Hohenstaufens and the early Angevins.
The Color of Time
The Color of Time (aka Tar) is a 2012 drama film written and directed by twelve New York University film students: Edna Luise Biesold, Sarah-Violet Bliss, Gabrielle Demeestere, Alexis Gambis, Shruti Ganguly, Brooke Goldfinch, Shripriya Mahesh, Pamela Romanowsky, Bruce Thierry Cheung, Tine Thomasen, Virginia Urreiztieta and Omar Zúñiga Hidalgo. It stars James Franco, Henry Hopper, Mila Kunis, Jessica Chastain and Zach Braff. It premiered on November 16, 2012 at the Rome Film Festival. It was released in the United Kingdom in 2014 under the new title Forever Love. The film was released in the United States in theaters and on demand beginning on December 12, 2014.
Plot
The different parts of Pulitzer Prize winner C.K. Williams' life told through his poems. Flashbacks of his childhood, his teens, college years, to when he meets and marries his wife, Catherine (Kunis) and the birth of his children and parenthood. The film is narrated by different versions of Williams (Franco, Hopper, March, Unger), depicting the different aspects of Williams through the years.
Tar (disambiguation)
Tar is a viscous organic black liquid.
Tar or TAR may also refer to:
Other common meanings
In medicine
Music
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