In 1956, an American scientist named Richard Feyman suggested that it would be possible to build structures atom by atom. He decided to start things off by offering
a $1,000 prize to anyone who could build a working electric motor that fit inside a cube 1/25 of a centimeter long. He awarded the prize 2 and 1/2 months later to William McLellan, a physicist from the California Institute of Science and Technology. McLellan made the miniature motor using a microscope, toothpick and watchmaker's tools. Clever. Even smaller motors have been made since.
Many other items may one day be made by nanotechnology. There is already tennis rackets that are designed using nanotechnology. They are lighter, but stronger too.
Scientists are developing a form of carbon that will absorb water vapour, concentrate it, and turn it into usable drinking water. This could one day be used to supply water when there is no readily available source.
Nanotechnology is in its beginning stages. Scientists are still defining what is impossible- and what is possible. Richard Feyman says that is a possibility that nanotechnology could have an impact on every man-made object. Nanobots could crawl into the human body and do medical procedures. It is possible that they could change the future of mankind as no other discovery has done before.