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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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1 jan 1904 ano - Free-space optics

Descrição:

Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking. "Free space" means air, outer space, vacuum, or something similar. This contrasts with using solids such as optical fiber cable

Group Insights:
not a conventional way of communicating, may be used in emergencies

Adicionado na linha do tempo:

18 dez 2017
0
0
374

Data:

1 jan 1904 ano
Agora
~ 120 years ago

Imagens: