Engineering
Articles about engineering disciplines, systems and applied design.
Military engineering
Mill
Mill (grinding)
Millennium Force
Mortice and tenon
Mortice and Tenon Joint
Moulding
Nail
Nail (fastener): history, types, manufacture and uses
National Academy of Engineering
United States National Academy of Engineering (NAE)
Needle
Negative feedback
Neoprene
Neoprene: properties, production, uses, and environmental considerations
NFPA 704
NFPA 704 (Fire Diamond): Emergency Hazard Identification for Responders
Nozzle
Nozzle: Function, Design, Uses, and Common Types
Nuclear engineering
Nuclear engineering: principles, applications, and challenges
Nuclear meltdown
Reactor core melt accidents: causes, corium formation, and safety measures
Nuclear reactor
Nuclear reactor: principles, types, history and applications
Object-oriented programming
Object-oriented programming (OOP): concepts, history, and applications
Occupational safety and health
Ocean thermal energy conversion
Oil refinery
Oil refining
Oil well
One-design dinghy
Oosterscheldekering
Oosterscheldekering — the Eastern Scheldt storm surge barrier
Operating environment
Operating environment (computing)
Out-of-order execution
Overhead lines
Paddle
Paddle (boat propulsion and mixing tool)
Pak Beng Dam
Pak Beng Dam — Hydropower Project on the Mekong in Laos
Pampa Wind Project
Pampa Wind Project — proposed 4,000 MW wind farm in the Texas Panhandle
Pantograph
Parachute
Peaking power plant
Peaking power plant (peaker): purpose, types, and role in electricity systems
Pelletization
Pelletization: process, applications, and industrial significance
Perforation
Perforation: purpose, methods, history and common applications
Permanent way
Permanent way (railway track structure)
Photovoltaics
Photovoltaics (Solar PV): Principles, Types, and Applications
Photovoltaics convert sunlight into direct current electricity. This article explains how PV systems work, common materials and configurations, history, uses, advantages, and chall
Pig iron
Pig iron: crude iron produced in blast furnaces
Pipe (material)
Piping and instrumentation diagram
Piping and Instrumentation Diagram (P&ID)
Piston
Piston (mechanical component)
Pitchfork
Pitchfork (agricultural implement)
Pitman arm
Pitman arm — steering linkage component
Planform
Planform (plan view): definition and aircraft wing shapes
Planning
Planning: principles, processes, and practical applications
Plans (drawings)
Plastic explosives
Plastic explosives: composition, uses, history and safety
Plating
Plating: metal surface coatings — methods, history, and applications