- Today, we are designing revolutionary new machines that are the ultimate tools, forged from individual atoms. In these machines we discover new technology which helps us very easily to work like nanotechnology.
- Nanotechnology is so smart technology like LASER(in laser we made holomark by using nano technology),robot arms,wide motors and even whole computer.
I want to build a billion tiny factories, models of each other, which are manufacturing simultaneously. . . The principles of physics, as far as I can see, do not speak against the possibility of manufacturing things atom by atom. It is not an attempt to violate any laws; it is something, in principle, that can be done; but in practice, it has not been done because we are too big. — Richard Feynman, Nobel Prize winner in physics.
In its original sense, ‘Nanotechnology’ refers to the projected ability to construct items from the bottom up, using techniques and tools being developed today to make complete, high performance products.
Near Time (present to 2030):
Nanomachines in our bodies-
In the future we will have tiny sensors in our clothes, body and bathroom, constantly monitoring our health and detecting diseases like cancer years before they become a danger. The key to this is the DNA Chip which promises a “laboratory on a chip.” Like the tricorder of Star Trek, these tiny sensors will give us a medical analysis within minutes.
Carbon nanotubes are made of individual carbon atoms bonded to form a tube. Imagine chicken wire, where every joint is a carbon atom. Now roll up the chicken wire into a tube, and you have the geometry of a carbon nanotube. Carbon nanotubes are formed every time ordinary soot is created, but scientist never realized that carbon atoms could bond in such a novel way. One preview of the power of nanotechnology is Carbon Nanotubes. In principle, carbon nanotubes are stronger than steel and can also conduct electricity, so carbon based computers are a possibility. Although they are enormously strong, one problem is that they must be in pure form, and the longest pure carbon fiber is only a few centimeters long. But one day, entire computers may be made of carbon nanotubes and other molecular structures.
Post Silicon Era-
All this was science fiction,of course.The technology of today does not allow you to change a solid object at will.Yet by midcentury a form of this shape-shifting technology may become commonplace. In fact,one of the main companies driving this technology is Intel.
Farfuture(2070 to 2100):
Holy Grail;The Replicator-
The earliest proposals for molecular manufacturing technologies echoed biological systems. Huge numbers of tiny robots called “assemblers” would self-replicate, then work together to build large products, much like termites building a termite mound.
Such systems appeared to run the risk of going out of control, perhaps even “eating” large portions of the biosphere. Eric Drexler warned in 1986, “We cannot afford certain kinds of accidents with replicating assemblers.” Since then, however, Drexler and others have developed models for making safer and more efficient machine-like systems that resemble an assembly line in a factory more than anything biological. These mechanical designs were described in detail in Drexler’s 1992 seminal reference work, Nanosystems, which does not even mention free-floating autonomous assemblers.
Replicating assemblers will not be used for manufacturing. Factory designs using integrated nanotechnology will be much more efficient at building products, and a personal nanofactory is nothing like a grey goo nanobot. A stationary tabletop factory using only preprocessed chemicals would be both safer and easier to build. Like a drill press or a lathe, such a system could not run wild. Systems like this are the basis for responsible molecular manufacturing proposals. To evaluate Eric Drexler’s technical ideas on the basis of grey goo is to miss the far more important policy issues created by general-purpose nanoscale manufacturing.
A grey goo robot would face a much harder task than merely replicating itself. It would also have to survive in the environment, move around, and convert what it finds into raw materials and power. This would require sophisticated chemistry. None of these functions would be part of a molecular manufacturing system. A grey goo robot would also require a relatively large computer to store and process the full blueprint of such a complex device.