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How does Messi keep the ball close to himself

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The science of how Messi keeps the ball close to himself photo credit: ZaleDesigns Messi is a magician with the ball at his feet. He's in my opinion the best player in the sense that he can control the ball so well, runs so fast with the ball & changes the direction at full speed like it's a walk in the park. For starters he started playing very early (at 3) which is crucial if you want to be a good player. In that aspect, he's God gifted as he had dribble skills which is genetic in my opinion. Height He is short which means a low center of gravity so it's difficult to push him off the ball. That's why we see that anyone rarely can topple him down, instead players much larger than him lose possession to him. So his short height suits his style of play & is a blessing in disguise. Change of pace Messi changes his pace really well. He starts slow and runs directly at the defender which means the defender has to stop & focus on him. When he reac...
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metals and non metals

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Materials: Metals and Non-Metals 1

Introduction

  • The metals can be distinguished from the non-metals on the basis of their chemical and physical properties.

  • The property of metals by which they can be beaten into thin sheets is known as malleability.

  • The property of metal by which it can be drawn into wires is known as ductility.

  • The metals are normally hard, malleable, lustrous, ductile, sonorous, and good conductors of heat and electricity. E.g. iron, copper, calcium, aluminum, magnesium, etc.

Metal_Nonmetal

  • The materials, which are not sonorous and are poor conductors of heat and electricity, are known as non-metals. E.g. sulphur, carbon, oxygen, phosphorus, etc.

  • Some metals, such as sodium and potassium are soft and can be cut with a knife.

  • Mercury is the only metal, which remains in liquid state at room temperature.

  • When sulphur dioxide is dissolved in water, sulphurous acid is formed. Illustration - Sulphur dioxide (SO2) + Water (H2O) → Sulphurous acid (H2SO3).

  • Oxides of non-metals are acidic in nature.

  • The sulphurous acid changes blue litmus paper red.

  • Phosphorus is a very reactive non-metal and it catches fire whenever exposed to air.

  • To prevent the contact of phosphorus with atmospheric oxygen, Phosphorus is stored in water.

  • On burning, metals easily react with oxygen and produce metal oxides, these are basic in nature.

  • Non-metals react with oxygen and produce non- metallic oxides; these are acidic in nature.

  • Some metals react with water and produce metal hydroxides and hydrogen gas.

  • Nonmetals normally do not react with water.

  • Metals also react with acids and produce hydrogen gas and metal salts.

  • Non-metals normally do not react with acids.

Uses of Metals and Nonmetals

  • Metals are used in making machinery, airplanes, automobiles, trains, satellites, industrial gadgets, cooking utensils, water boilers, etc.

  • Non-metals are used in fertilizers to improve the growth of plants.

  • Non-metal are used in water purification.

  • Non-metals are used in crackers.

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Chemical reactions and equations

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Chemistry - Chemical Reactions & Equations Introduction A process in which one or more chemical substances react with other chemical substance and converted to one or more different substances is known as chemical reaction. Chemical Equation A chemical equation is the symbolic demonstration of a chemical reaction; it is represented through symbols and formulae. E.g. Magnesium + Oxygen = Magnesium Oxide Mg   +   O 2   =   MgO The substances magnesium and oxygen are known as reactants and the result of reaction, i.e., magnesium oxide is known as product. Remember,  the total mass of the elements present in the products of a chemical reaction has to be equal to the total mass of the elements present in the reactants. The number of atoms of each element always remains same, before and after the chemical reaction. Types of Chemical Reaction Following are the major types of chemical reaction − Combination Reaction Decomposition Reaction Displacement Re...
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The Fundamental Units Of. Life

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Biology - The Fundamental Unit of Life Introduction The fundamental unit of life is cell. Cell was first discovered by Robert Hooke in 1665 in a simple microscope. In 1674, Leeuwenhoek, with the help of developed microscope, discovered the free living cells in pond water. In 1831, Robert Brown had discovered the  nucleus  in the cell. In 1839, Purkinje used the term ‘protoplasm’ for the fluid substance found in the cell. The cell theory was proposed by Schleiden (1838) and Schwann (1839). According to the cell theory, all the plants and animals are composed of cells and that the cell is the basic unit of life. In 1855, Virchow further expanded the cell theory and suggested that all cells arise from pre-existing cells. In 1940, the discovery of electron microscope made possible to observe and understand the complex structure of the cell. Unicellular Organisms The single cellular organisms, such as  Amoeba, Chlamydomonas, Paramoecium , and bacteria, ...
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carbon and it's compound

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Chemistry - Carbon and its Compounds Introduction Carbon plays very important roles for all living beings. The amount of carbon in the earth’s crust is merely 0.02%, which is available in the form of minerals such as carbonates, hydrogen-carbonates, coal, and petroleum. The presence of carbon in the atmosphere of the earth is 0.03%, in the form of carbon dioxide. Compounds of Carbon Almost all carbon compounds (except a few) are poor conductors of the electricity. The diamond and graphite both are formed by carbon atoms; however, the difference lies between them in the manner in which the carbon atoms are bonded to one another. In diamond, each atom of the carbon, is bonded to four other carbon atoms and form a rigid three-dimensional structure (see the image given below). In graphite, each atom of the carbon, is bonded to three other carbon atoms in the same plane, which gives a hexagonal array (see the image given below) − There is also difference in some physical structu...
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