Nanotechnology :: essays research papers

Nanotechnology is an anticipated manufacturing technology giving thorough, inexpensive control of the bodily structure of matter. The term has some snips been mapd to refer to any technique qualified to work at a submicron scaleMolecular manufacturing go out alter the turn of events of giga-ops computers smaller than a cubic micron cell animize machines personal manufacturing and recycling appliances and much more. NanotechnologyBroadly speaking, the central thesis of nanotechnology is that near any chemicly stable structure that can be qualify can in fact be built. This possibility was first good by Richard Feynman in 1959 when he said "The principles of physics, as far as I can see, do not speak against the possibility of maneuvering things soupcon by atom." (Feynman won the 1965 Nobel prize in physics). This concept is receiving increasing perplexity in the research community. There have been three international conferences in a flash on molecular nanotechno logy as well as a coarse range of conferences on related subjects. Science said "The ability to mark and manufacture devices that ar only tens or hundreds of atoms across promises rich rewards in electronics, catalysis, and materials. The scientific rewards should be just as great, as researchers approach an last-ditch level of control - assembling matter one atom at a time." "Within the decade, Foster or some other scientist is in all probability to learn how to piece together atoms and molecules one at a time using the STM ." (Referring to John Foster of IBM Almaden labs, who spelled "IBM" by pushing atomic number 54 atoms around with a scanning tunnelling microscope.) Eigler and Schweizer at IBM reported on ".the use of the STM at low temperatures (4K) to position individual xenon atoms on a single- crystal nickel surface with atomic precision. This capacity has allowed us to fabricate rudimentary structures of our own design, atom by atom. The p rocesses we describe are in principle applicable to molecules also". Drexler has proposed the assembler, a device having a submicroscopic robotic arm under computer control. It will be capable of attribute and positioning reactive compounds in order to control the precise hole at which chemical reactions take place. This general approach should allow the construction of large atomically precise objects by a sequence of precisely controlled chemical reactions, building objects molecule by molecule. If designed to do so, assemblers will be able to build copies of themselves, that is, to replicate. Because they will be able to copy themselves, assemblers will be inexpensive.