5 simple machines

Simple Machines - In all the above examples, a machine either multiplies or reduces the effect of the force that is applied. A bicycle is a machine which is used to gain speed. We gain speed by exerting additional force. When we try to ride a bicycle up a ste..

A bicycle is a machine which is used to gain speed. We gain speed by exerting additional force. When we try to ride a bicycle up a steep hill, we soon realize that we gain speed by applying greater force. It is impossible to multiply both the force and gain the speed at the same tim..

Before surgeons can perform open-heart surgery or heart transplants or even to correct a simple heart defect, they have to be able to open up the heart and expose the chambers. To enable this, circulation and respiration are maintained by the heart - lung machine. The function o..

Simple Microscope - A simple microscope is nothing but a single biconvex lens. It is referred to as magnifying glass. Magnifying Glass Usually the focal length of the convex lens is around 2.5 cm. The object to be viewed through a simple microscope is placed ..

Simple Pendulum - A simple pendulum consists of a heavy or point mass suspended by an inextensible or non-elastic thread from a fixed point. The length of the pendulum is the distance from the point of suspension to the center of gravity of the bob. The resting position of a ..

A simple pendulum consists of a heavy mass (spherical in shape) suspended by a long weightless, inextensible and flexible string from a point about which it can oscillate. The mass which is attached to the end of the string is called the bob of the pendulum. The pendulum is suspended as s..

In this type of unit cell, there are eight atoms at the corners and each such atom make..

Before surgeons can perform open-heart surgery or heart transplants or even to correct a simple heart defect, they have to be able to open up the heart and expose the chambers. To enable this, circulation and respiration are maintained by the heart - lung machine. The func..

Rock Salt (or NaCl) Type of Structure - fig 2..

Simple reflex is also of two types. They are as follows: In the first type, only the sensory and motor neurons of the spinal nerves are involved. Jerking of knee when tapped below the kneecap is an example. In the second type, the interneuron present in the spinal cord is also involv..