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Nano ?

Definitions

Nano-objects (particles, fibers, plates, tubes,...) are entities with at least one dimension is smaller than 100 nanometers. These entities are the basis for the formation of nano-structured materials on the surface or in volume. They are passive or active as nanodevices. This website deals the risks associated with nanomaterials without covering the wider field of nanotechnologies.
Cartoons Episode 1

From our world to the "nanoworld"

From our world to the "nano world", it is necessary to make three successive cuts by a factor of 103:

  • from the human size to a grain of sand → from the meter to the millimeter,
  • from the grain of sand to the bacteria → from the millimeter to the micrometer,
  • from the bacteria to the molecule → from the micrometer  to the nanometer.

 

 

From the planetary dimension to the molecular dimension. Extract of "NANO the next dimension" (2002).