Nanotechnology is a topic of studies and innovation worried with building 'things' - generally, substances and devices - on the dimensions of atoms and molecules. A nanometre is one-billionth of a metre: ten times the diameter of a hydrogen atom. The diameter of a human hair is, on average, 80,000 nanometres. At such scales, the ordinary guidelines of physics and chemistry no longer apply. For instance, substances' characteristics, inclusive of their colour, strength, conductivity and reactivity, can differ notably between the nanoscale
and the macro. Carbon 'nanotubes' are 100 instances stronger than steel however six instances lighter. It is a quite multidisciplinary discipline, drawing from fields inclusive of achieved physics, substances technological know-how, colloidal technological know-how, tool physics, supramolecular chemistry, and even mechanical and electrical engineering. Much speculation exists as to what new science and generation may also end end result from these strains of research. Nanotechnology
can be visible as an extension of present sciences into the nanoscale, or as a recasting of present sciences the use of a newer, more modern-day term. Two main techniques are applied in nanotechnology.
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