Dubai is the most populous city in the United Arab Emirates (UAE) and the capital of the Emirate of Dubai.

Established in the 18th century as a small fishing village, the city grew rapidly in the early 21st century with a focus on tourism and hospitality, having the second most five-star hotels in the world, and the tallest building in the world, the Burj Khalifa.

Lightning and urban lighting are some of the most dramatic effects of electricity.

Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge.

Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations.

Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others.

Mechanical repair.

Field repair of aircraft engine (1915–1916).

The technical meaning of maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure, and supporting utilities in industrial, business, and residential installations.

Over time, this has come to include multiple wordings that describe various cost-effective practices to keep equipment operational; these activities occur either before or after a failure.

An early-20th century Art Nouveau-style kitchen in Riga.

A kitchen is a room or part of a room used for cooking and food preparation in a dwelling or in a commercial establishment.

A modern middle-class residential kitchen is typically equipped with a stove, a sink with hot and cold running water, a refrigerator, and worktops and kitchen cabinets arranged according to a modular design.

Many households have a microwave oven, a dishwasher, and other electric appliances.

The main functions of a kitchen are to store, prepare and cook food (and to complete related tasks such as dishwashing).

The room or area may also be used for dining (or small meals such as breakfast), entertaining and laundry.

The design and construction of kitchens is a huge market all over the world.

A mobile home being repaired in Oklahoma.

A man making repairs to a house after a flood.

Home repair involves the diagnosis and resolution of problems in a home, and is related to home maintenance to avoid such problems.

Many types of repairs are "do it yourself" (DIY) projects, while others may be so complicated, time-consuming or risky as to suggest the assistance of a qualified handyperson, property manager, contractor/builder, or other professionals.