Posts Tagged ‘ Human ’

Absolute Certainty

Absolutality - absolute certainty - by Vikas SharmaI think there is no absolute freedom, there is no absolute truth, and there is no deep reality. It is like the more freedom we have, the more we learn and the more we live our desired life; the more truth we know, the more awake and aware we become; and the more reality we realize, the less ignorance will prevail around or inside us. For me, the whole concept of the absolutality is just something of an enigma, and perhaps, it is not possible to achieve an absolute certainty of freedom, truth and reality as none of them exists in the state of an absolute certainty. In spite of all this, the state of absolutality is always imagined as something beautiful, it always looks alluring and pure, and therefore we crave for it which is great indeed as our every step towards this unreachable absolutality makes us a better human, a better person. Hence, it is logically pretty good to pursue this unreachable non-existent absolute certainty of freedom, truth and reality.

–Vikas Sharma

Self-Healing Materials

The concept of self-healing material or technology  has been under research since a decade, with a view to reducing the risks and costs of cracking and damage in a wide range of materials and increasing the durability of materials to much greater extend.

This post briefly gives an idea about self-healing technology, so let’s start with a question, what are these self-healing materials?

Self-healing materials are a class of smart materials that have the structurally incorporated ability to repair damage caused by mechanical usage over time. The inspiration comes from biological systems, which have the ability to heal after being wounded. For a material to be defined as self-healing, it is necessary that the healing process occurs without human intervention.

Something more about it!

Self-healing method is possible with the help of Nanotechnology. Carbon nano-tubes can be used to sense and heal a crack. It is possible that Carbon nano-tubes can sense a crack within the structure, and then it can be used to supply healing agent to all the defected areas in the material, and this healing agent can be released whenever and wherever a crack or scratch appears. Carbon nano-tubes can be used for thermal transports to heat up the material at microscopic level so that the cracks or scratches can be removed from the material. In this way, it can heal a material.

Each Carbon nano-tube is less than 100 millionths of a meter in diameter, and this is what we call Nanotechnology. The first products to use these healing technique will most likely be paints; for example, a car can heals its own scratches on its painted surface, a scratch on any painted surface can be healed itself, and with more research and development it might be possible that this technique can work on many other things like on electronic gadgets or devices. ¬†It will be possible that in coming year there will be cell phone which can heals scratch on their touchscreens themselves, and much more. I think, it’s a promising future technology.

Bionic Eyes

In a pioneering research, scientists claim to be developing bionic eyes for the blind, which they say will be ready for human trials by 2013.

Here’s a brief explanation of bionic vision system or bionic eye:

What is bionic eye?

Bionic Contacts Lens

image credit: wikipedia
This lens is based upon Bionic Technology, but it’s not a Bionic Eye.

Bionic eye is an experimental visual device intended to restore the sense of vision to people living with blindness, low vision, or age-related macular degeneration.

Bionic eyes or bionic vision system consists of a camera mounted on pair of glasses, the purpose of this camera is to transmits visual information or high-frequency radio signals to a microchip( or electrode array) which is connected to neurons in the retina. Electrodes on the implanted chip convert these signals into electrical impulses and then these electrical impulses are transmitted through the optic nerve to the vision centers of the brain where they are interpreted as an image. The detail of a generated image by this technology depends on phosphene. A phosphene is a perceived spot of light in the visual field which can be induced with the help of electrodes. It means the more electrodes are implanted, the more phosphenes are capable of being generated and the more detail a patient may be able to see.

A person using this device or technology won’t experience vision in the same way that a person with a healthy eye does but with training and patience people will adapt to the implant. This technology is in its initial stage and with time and more research, it is possible that in future this technology can help patients living with blindness and low vision to recognize faces, read large print and much more. It is also possible with the more research and advancement in the field of bionic vision systems, there will be high-resolution and visual quality bionic eyes and will be commercially available which can even provide better vision than normal eyes. It might be possible that even healthy people will upgrade their sight with these kind of devices.

Reference: http://en.wikipedia.org/wiki/Visual_prosthesis