Wikipedia:Contents/Portals/Technology and applied sciences

{{columns-list|colwidth=50em|

Technology

: {{hlist|Agriculture|Astronomy|Nuclear technology}}

:Computing and information technology

:: {{hlist|Companies (Amiga)|Computer programming|Free and open-source software (Linux)|Internet}}

:Electronics

:: Telecommunication

:: Telephones

:Energy

:: Renewable energy

:: Wind power

: Engineering

:Transport

:: {{hlist|Aviation|Buses|Cars|London transport|Rocketry| Spaceflight| Trains}}

:: Roads

:::{{hlist|Australian roads|U.S. roads (California roads, Maryland roads, Michigan highways)}}

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