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do this in the paper?

Brief History

If we have to talk about the role we have to go back to AD 105 the country of China , Mr. T'sai Lun, which was an employee of the Chinese emperor Ho Ti, first manufactured paper was made from vegetable paste, ie based on bamboo fiber, mulberry and other plants, and this is how we know the role today. For 500 years the technique of papermaking belonged only to the Chinese, who kept it for that long period.

In ancient Egypt was written on papyrus (from which the word paper), which was derived from the stem of a plant very abundant on the banks of the Nile (Cyperus papyrus).

In Europe during the Middle Ages was used was parchment skins of goats or sheep, tanned, ready to receive the ink, which unfortunately were quite expensive, which caused from the eighth century popularization of the unfortunate habit of deleting text of the scrolls to overwriting (giving rise to the palimpsest) thus lost an inestimable amount of work.


papermaking today
Paper is a thin sheet is made of cellulose fiber plant mainly comes from trees, cotton, and wood in general that are milled, bleached diluted in water, then dried and hardened, the pulp usually substances are added as polypropylene or polyethylene to provide different characteristics.
The fibers are bonded by hydrogen bond links. Also called paper, foil or foil to most common way thin.

The paper quality also depends on the fibers we use, the best are often the cotton to be more long and tough, can also be a mixture of new fibers, and a portion recycled boxes, and even clothing cotton.


finished paper and contains cellulose, and glue, to make the fibers stick together, the process uses exorbitant amounts of water so it is better to recycle them.
But the use of new technology and especially rapid growth in computing and new telecommunications systems that allow the writing, storing, processing, transportation and books with electronic media more advantageous, showing the traditional use of paper in the communication and information, background.

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Where does the oil?

is impossible not to have heard in any part of the world his name, which the country's economy would be affected by its price rose, there are shortages, they fight because countries of collection. It is also known by different names, such as natural oil, mineral oil, black or metaphorically as the "black gold ." We're talking about oil .

Stone (Petra) and oil (Oleum) are the two Latin terms found in the etymology of the word oil, which is also called "Oil stone."

Brief History
oil

history began more than 200 million years ago, when most of the world was still covered by large expanses of water. The geological processes and slow bacterial action on organic matter accumulated on the seabed resulted in this mixture of hydrocarbons in which it has based the development of our society current. The oil
is a viscous liquid green, yellow, brown or black , which consists of various hydrocarbons, ie compounds composed of carbon and hydrogen atoms in different cantidades.No have ever encountered two oil fields have exactly the same composition, as, along with hydrocarbons, there are often other oxygenates, nitrogen and other organic compounds with elements like sulfur, nickel and vanadium.
Oil comes from the decay of tiny aquatic organisms that lived in ancient seas Earth millions of years ago, when humans still had not appeared.

At that time, the planet's surface did not have the same characteristics as the present. Pangea is the name that is known only large terrestrial plate there, which were gathered all continents.

When these plant and animal organisms died and fell to the bottom of large bodies of water, successive layers of inorganic sediment, sand and clay were deposited on top, burying them deeper and deeper. The high pressure of the layers of soil, high temperatures and the action of bacteria in the absence of oxygen, ie in an anaerobic medium, was slowly transforming the organic waste in what we know today as crude oil . The process of decomposition of organic matter and petroleum formation takes between 10 and 100 million years .

A characteristic feature of the oil is the miscibility of all fractions, which forms a continuous organic phase. In contrast, oil are poorly miscible in water, and as they are lighter, are always a layer on its surface.

Oil is not large underground lakes, but fills the pores and crevices in the rocks of sedimentary origin, like the water in aquifers, or in a sponge. Its liquid nature gives him a tendency to migrate vertically or horizontally, using the permeability of the rock layers that are in its path. When that happens, the oil moves up to the surface-light products that comprise it evaporate and the rest is oxidized, resulting in asphalt-or as a deposit when caught in a waterproof layer can not pass.

This high mobility makes it often is difficult to know what has been the place where oil has been formed, as can be found in all strata geological. The most common under the Cenozoic (65 to 0.01 million years), followed by the Paleozoic (590-248 million years ago), the Mesozoic (248-65 million) and Preconiano (more than 500 million years ), but all have originated during the course of a long evolutionary history, factors that have acted petrographic, sedimentological, structural, paleontological, etc..

Oil is currently the main source of energy and important raw material traded between countries. More than half of the active energy that keeps our civilization comes from this energy source does not renewable.
is then a strategic resource whose absence would cause the decline of the global economy.

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What is Beekeeping? Why

The etymology of the word Beekeeping , we note that comes from the Latin Apis (bee ) and culture (culture ), ie the science that studies and cultivates bees or bee brood. In a more comprehensive definition would be that which defines it as "applied science that studies the honeybee and where appropriate using technology is an economic profit "

That person practicing beekeeper Beekeeping is called. The activities developed by the beekeeper are several, as in the various production stations is not the same, during the summer normally work with the bees and the production of the products obtained, but during the winter season break, the work is the preparation and maintenance of wood material for the next season where the new host families.

Derived Products There are a variety of products obtained from these incredible insects (belonging to the family of the Hymenoptera), but the bees not only produce honey, they also have the wax that was perhaps more in due course, due to its use in the manufacture of lamps or candles wax and other properties and other important applications, such as waterproofing the wood, rope, leather, cloth, etc. However, with the development of new techniques used by the Beekeeping takes place the storage, handling and mechanisms for collection has also begun to collect pollen, propolis, royal jelly and bee venom (apitoxina).

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color is blood red?

We hit, we fell, we scraped body parts and leaves, red in color, sometimes a dark red or clear red. It is the blood, one that circulates throughout our body.

To explain why the blood sample to see the color red, is made briefly explain the blood.

components
Blood Human blood is composed of different elements, which are:

Elements

liquids
Plasma is the liquid part of blood and comprises a greater proportion of water, where they are dissolved salts, minerals and other substances necessary for the proper functioning of the body: proteins, fats, carbohydrates carbon and coagulation factors, essential to prevent bleeding.

Solid items:
blood cells are suspended in plasma :
• Red blood cells or erythrocytes (these carry oxygen)
• Blood white cells or leukocytes (to defend against infections and tumors)
• Platelets or thrombocytes (prevent bleeding)

gaseous elements:
has oxygen, carbon dioxide and nitrogen.

Then, blood is red because red blood cells are inside a protein called hemoglobin responsible for carrying oxygen we breathe from the pulmonary alveoli cells in the body and bring carbon dioxide from cells into the lungs to breathe.

The hemoglobin is a red pigment, which contains iron, which interact with oxygen to take a light red color, which is the color of the arteries and interact with carbon dioxide took a dark red color, which is the characteristic color of the veins .