The human body is one of the best creations of nature, for it is an amazing combination of muscles, sensory organs, neural networks and all. But, over a period of time and also due to some unforeseen circumstances, some of the natural combinations cease to work to their potential or get damaged altogether. So it is possible to get back the glory bestowed on us by Mother Nature? Is it possible to graft a human organ or restore sensory perceptions to the human body? One major field working towards this is 'bionics':an approach where different technologies are coming to make this scenario possible.
Bionics are proposed as body add-ons or replacement for many body parts (ears, eyes, knees, neural prostheses, joints, muscles, kidney, liver, cartilage lungs, discs, pancreas, dental pulp, skin, hippo campus, legs and hands), and functions such as speech. Two main applications of bionic products are; one being for the restoration of body abilities to a species-typical norm and the other being the addition of abilities to the body that are not species-typical. Some of these devices are simply meant to help people regain normal functions — like eye implants that provide sight for the blind. Some devices are meant to enhance the strength of people who have been weakened from paralysis or old age.
Bionic Ear is basically an electronics ear made from electronics circuits and it performs different functions similar to human ear. Scientific research into bionic human parts has advanced impressively in recent years, driven by improvements in computer science, shrinking electronic components, and a growing understanding of the nervous system. Another example of this is the Bionic Arm that moves in response to the owner’s thoughts.
According to popular definition, bionics is the application of methods and systems found in nature to the study and design of engineering systems and modern technology. In simple terms ,when we think about bionics, it is generally about prosthetic arms or leg enhancements that are worn outside the body and to some extent even implanted sensor devices inside the body which are specifically enhanced to carry out routine tasks .The are essentially life systems that are powered by motors/actuators and sensory arrays. These send neural signals from the affected part of the body to the brain, by which individuals are able to perform some tasks independently.
Bionics (biology plus electronics) is a branch of science that deals with the application of living systems and biological methods, to design and implement engineering systems. Extensive research in this field has led to the development of gadgets that can perform similar to, or even better than normal human functionalities. They are paving way for the world of cyborgs.