Monthly Archive:: August 2014
21 Aug 2014
The Lungs: Basics we ought to know.
The lungs are among the most complex structures of the body. They form the important organ of the respiratory system. Though we expose them to smog, dust, industrial fumes, even cramp them with poor posture, they nevertheless carry on their task trouble-free. All that the lungs need to carry on respiration activity is hot,
20 Aug 2014
Seat belt: How does it function?
The working of seat belts in cars is related to the law of Inertia in physics. Inertia refers to the resistance offered by an object in motion, to change the way it is moving. The law of inertia states that a body in motion preserves its speed and direction as long as no force acts
19 Aug 2014
Carbon-Different forms of existence
Carbon is the sixth most abundant element in the earth. The property of an element to take more than one physical form is called allotropy and the different forms are called allotropes. As allotropes take different chemical structures, they exhibit different properties as well. Carbon exists in three basic forms in nature – diamond, graphite
17 Aug 2014
Different classes of levers in everyday life.
A lever is a simple machine which has three basic components – fulcrum, load and effort. There is a load which needs little or more effort to lift. The fulcrum tends to be a fixed point whose position decides how much effort/force is required to lift the load. Based on the position of the fulcrum,
15 Aug 2014
Common alloys in everyday life
Alloys are combination of one or two metals. Though metals possess useful properties like good conductivity and high strength, alloys combine the properties to make a metal useful for a particular application. When metals are alloyed, properties like melting point, conductivity are affected. We see alloys being used in jewelry, utensils, tools etc. The