1.
Since nanorobots would be microscopic in size, it would probably be necessary for very large numbers of them to work together to perform microscopic and macroscopic tasks.
2.
Computers, cellular phones, and other digital appliances are now inextricable parts of the structure of modern societies, made possible by the low cost of production of integrated circuits.
3.
A mobile phone allows its user to make and receive telephone calls to and from the public telephone network which includes other mobiles and fixed-line phones across the world.
4.
Fluid dynamics offers a systematic structure that underlies these practical disciplines.
5.
Photovoltaic systems are used for either on- or off-grid applications, and on spacecraft.
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