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femtotechnology
Femtotechnology is a hypothetical term used in reference to structuring of matter on the scale of a femtometer, which is 10−15 m. This is a smaller scale in comparison to nanotechnology and picotechnology which refer to 10−9 m and 10−12 m respectively.
==Overview==
Work in the femtometer range involves manipulation of excited energy states within atomic nuclei, specifically nuclear isomers, to produce metastable (or otherwise stabilized) states with unusual properties. In the extreme case, excited states of the individual nucleons that make up the atomic nucleus (protons and neutrons) are considered, ostensibly to tailor the behavioral properties of these particles.
The most advanced form of molecular nanotechnology is often imagined to involve self-replicating molecular machines, and there have been some speculations suggesting something similar might be possible with analogues of molecules composed of nucleons rather than atoms. For example, the astrophysicist Frank Drake once speculated about the possibility of self-replicating organisms composed of such nuclear molecules living on the surface of a neutron star, a suggestion taken up in the science fiction novel ''Dragon's Egg'' by the physicist Robert Forward.〔(neutron star, life on )〕 It is thought by physicists that nuclear molecules may be possible,〔(Physics News Update Number 29 - DO NUCLEAR MOLECULES EXIST? )〕〔(Nuclear Molecules )〕 but they would be very short-lived, and whether they could actually be made to perform complex tasks such as self-replication, or what type of technology could be used to manipulate them, is unknown.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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