While one must study and does not imply an effort as if it is to go and bring books in recent years has generated back pain among children and adolescents. According to one study found that 51% of boys aged between 13 and 15 years and 69. 3% of girls suffer from this type of pain. For one week, back hurts 17% of men and 33% of the girls. What generic term that hold less for this type of pain. This is demonstrated by scientific studies showed that the weight of the backpack load of school children raises their risk of back ailments. That is why we recommend that the weight of the backpack should not exceed 10% of body weight of the boy or girl. While the average load is 30%. The Medical Association (WTO) recommends reducing the burden, by reducing the weight of textbooks is one of the ways of their split in fascicles. Thus, Santillana has been campaigning hard and after each of his books, has created the Backpack Light Series, which consists of books split according to each cycle, to reduce the weight of school bags. Regarding the case in primary education, the books are divided into three, quarters, and in secondary education are divided into different thematic sections. A very good idea to relieve pain, saves weight in the backpack, as well as saving paper. These are the Benefits of lightweight daypack Backpack, the average weight of a book currently is 880 grams while the average weight of a single volume Backpack Light Series is 250 grams. The average weight of a set of books is 7. 04 kilos (8 areas), and this initiative is 2 kilos. Kovacs Foundation Santillana, offer check through interactive practice healthy habits in the use of the backpack so that mothers can also be more aware, through an exhibition that will pass through different parts of Spain, this type product is intended for students in fifth grade, with the possibility of groups and associations. XHTML:
Welcome to military power. This is a blog about military issues that are related on tanks, fighter planes and boats etc. . . Not to mention future military project in every country in the world. I invite you to follow my blog. You since 2011. About 20 soldiers participated in an evaluation period of two weeks, a light machine gun prototype to demonstrate its potential impact on the effectiveness of operational missions and assist engineers in the development of possible improvements to the weapon and ammunition only . The objective of the tests was to obtain the perspective of the fighter after a series of stringent tests with the gun battle. It has taken six years to bring the design to a fully operational weapon, ready for an evaluation. What the program needs now is a Capabilities Development Document (COD), a prerequisite before trnasitar to the stage of development and manufacturing engineering, always Redeemer acquisition cycle. This light machine gun is part of Technology lightweight daypack Small Arms (LAST, for its acronym in English), managed by the Joint Small Arms (JSSP), a unit of Research and Development Center of the U. S. Army Armament ( ARDEC). Soldier firing the LMG, which weighs 8. 3 pounds weapon unless the SAW. This light machine gun is gas operated, air cooled, belt fed ammunition or one with selectable shooting modes including semi-automatic and automatic. Its rate of fire is approximately 650 rounds per minute. The gun will eventually replace the M249 Squad Automatic Weapon (Squad Automatic Weapon
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