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Cork

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  • 1. HELLO EUROPEAN FRIENDS FROM ECO SCHOOLS!WE ARE THE STUDENTS OF 8ºA OF JOSE REGIO SCHOOL AND THIS IS OURCHRISTMAS CORK POSTCARD FOR YOU! HOPE YOU ENJOY IT!
  • 2. Cork Cork is a material of plant bark (suber) of cork oak (Quercus suber), with great insulating power. The first cork stripping occurs usually when the tree reaches 25 to 30 years, with the extraction occurs in the months of June to August. This cork, sometimes with considerable thickness, is called virgin and differs substantially from production cork extracted in the following periods: acted “secundeira” is called the second run and amadia runs or in subsequent extractions. The cork amadia is of higher quality and is therefore more valuable, and one that canbe used for the manufacture of stoppers. From this stage, the cork is extracted every nine stage,years. With hot days in anticipation of the summer, begins the strippingof the cork. The protective skin is removed from the tree trunk. Thequality of of the cork, will depend on the quality of the tree. The processconsists in opening, drawing and extracting the cork. onsistsToday, cork is a prime raw material whose use extends to various usessuch as the floor coverings, insulation (thermal and acoustic),manufacturer of musical instruments in home furnishings, footwear andcomponents for various industry segments automotive, beverages,masonry construction, decoration, among others.Portugal, with an area of 730 thousand hectares of cork oak forests, is responsible for over50% of the worlds cork. Other producers are Spain, southern France, southern Italy, most Spain,recently Morocco, Algeria, Tunisia.Technological development and application of new techniques, including management, led tovertical integration of some processing operations of cork.Cork has also been used for the discovery of the cell (for the discovery of the word cell, rbecause what the scientist saw was not actually the cell). In 1665, Robert Hooke used thinslices of cork under his microscope and visualized something like "honeycombs" and gave it the name cécula, swearing to have seen "the cell".
  • 3. WE WISH YOU ALL AMERRY CHRISTMASAND A HAPPY NEW YEAR OF 2013!!

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