|
Bris Sextant
Bris sextant. Assembly drawing of a Bris sextant. The Bris sextant is not a sextant proper, but is a small angle-measuring device that can be used for navigation. The ''Bris'' is, however, a true reflecting instrument which derives its high accuracy from the same principle of double reflection which is fundamental to the octant, the true sextant, and other reflecting instruments. It differs from other sextants primarily in being a fixed angle sextant, capable of measuring a few specific angles. Sven Yrvind (Lundin) developed his Bris sextant as part of his quest for low-cost, low-technology equipment for ocean crossings. The ''Bris'' is a low-technology, high-precision, fixed-interval instrument. It is made of two narrow, flat pieces of glass (microscope slides) permanently and rigidly mounted in a V-shape to a third flat piece of #12 welding glass to make viewing the sun eye safe. When the sun or moon is viewed through the V, it is split into eight images. The instrument is s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bris
The ''brit milah'' ( he, בְּרִית מִילָה ''bərīṯ mīlā'', ; Ashkenazi pronunciation: , "covenant of circumcision"; Yiddish pronunciation: ''bris'' ) is the ceremony of circumcision in Judaism. According to the Book of Genesis, God commanded the biblical patriarch Abraham to be circumcised, an act to be followed by his male descendants on the eighth day of life, symbolizing the covenant between God and the Jewish people. Today, it is generally performed by a mohel on the eighth day after the infant's birth and is followed by a celebratory meal known as ''seudat mitzvah''. ''Brit Milah'' is considered among the most important and central commandments in Judaism, and the rite has played a central role in the formation and history of Jewish civilization. The Talmud, when discussing the importance of ''Brit Milah'', compares it to being equal to all other mitzvot (commandments) based on the gematria for ''brit'' of 612. Jews who voluntarily fail to undergo ''Brit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bris Sextant Plano
The ''brit milah'' ( he, בְּרִית מִילָה ''bərīṯ mīlā'', ; Ashkenazi pronunciation: , "covenant of circumcision"; Yiddish pronunciation: ''bris'' ) is the ceremony of circumcision in Judaism. According to the Book of Genesis, God commanded the biblical patriarch Abraham to be circumcised, an act to be followed by his male descendants on the eighth day of life, symbolizing the covenant between God and the Jewish people. Today, it is generally performed by a mohel on the eighth day after the infant's birth and is followed by a celebratory meal known as ''seudat mitzvah''. ''Brit Milah'' is considered among the most important and central commandments in Judaism, and the rite has played a central role in the formation and history of Jewish civilization. The Talmud, when discussing the importance of ''Brit Milah'', compares it to being equal to all other mitzvot (commandments) based on the gematria for ''brit'' of 612. Jews who voluntarily fail to undergo ''Brit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
