Appropriate technology

thumb|Classic bell of a bicycle A bicycle, also called a pedal cycle, bike, push-bike or cycle, is a human-powered or motor-assisted, pedal-driven, single-track vehicle, with two wheels attached to a frame, one behind the other. A is called a cyclist, or bicyclist.

thumb|A Samsung NC10 netbook computer A netbook is a small-sized and inexpensive laptop; the term was used throughout the late 2000s and early 2010s, designed mostly as a means of accessing the Internet and being significantly less expensive than full-sized laptops with lower or cut-down specifications. thumb|An Acer Aspire One netbook sitting on a standard sized [[Toshiba Satellite laptop, demonstrating the size difference]] At their inception in late 2007, as smaller-than-typical laptop computers optimized for low weight and low cost, netbooks began appearing without certain then-standard la

thumb|New, unlaid mudbricks in the Jordan Valley (Middle East)|Jordan Valley, [[West Bank Palestine, 2011]] right|thumb|Mudbrick was used for the construction of Elamite [[ziggurats—some of the world's largest and oldest constructions. Choqa Zanbil, a 13th-century BCE ziggurat in Iran, is similarly constructed from clay bricks combined with burnt bricks.]]

thumb|Adobe wall (detail) in Bahillo, Palencia, Spain thumb|Renewal of the surface coating of an adobe wall in [[Chamisal, New Mexico]] thumb|Adobe walls separate urban gardens in Shiraz, Iran

thumb |An ab anbar (water reservoir) with windcatchers (openings near the top of the towers) in the central desert city of [[Yazd, Iran]] thumb |Aghazadeh Mansion in Abarkooh, [[Iran, has an elaborate 18-m windtower with two levels of openings, plus some smaller windtowers.]]

interdisciplinary branch of biology and engineering

thumb|Kingsford (charcoal)|Kingsford charcoal briquettes

technique for constructing foundations, floors, and walls by compacting a damp mixture of sub soil

bicycle used to move large and heavy loads with pedals

thumb|right|Roman Empire|Roman public latrine found in the excavations of [[Ostia Antica; unlike modern installations, the Romans saw no need to provide privacy for individual users.]] thumb|Public Latrine at Athens' Roman Forum site thumb|right|250px|Roman latrines in Els Munts villa at Altafulla in [[Tarragonès, Spain.1) Bench 2) Main water channel 3) Front water channel 4) Wall 5) Window 6) Divider 7) Washbasin]]

accumulation of rainwater for reuse

toilet using natural processes to decompose matter

small, inexpensive, low-power, legacy-free desktop computer designed for basic tasks

thumb|upright| Historical community sanitation poster promoting sanitary outhouse designs (Illinois, US, 1940) thumb|upright|Outhouse in the mountains in northern Norway thumb|upright| An outhouse in Le Palais, Brittany

technology that is suitable to the social and economic conditions of the geographic area in which it is to be applied, is environmentally sound, and promotes self-sufficiency on the part of those using it

manually operated water pump for a well

The Simputer is a self-contained, open hardware Linux-based handheld computer that was first released in 2002, developed in, and primarily distributed within India. The product was envisioned as a low-cost alternative to personal computers. The Simputer project had the initial goal of selling 50,000 units, but only sold about 4,000 units by 2005, and has been called a failure by news sources.

natural building material made from subsoil, water, some kind of fibrous organic material (typically straw)

portable water purification powered by sunlight

thumb|right|Construction block made from hempcrete thumb|Illustration of hemp concrete carbon emission and sequestration, with a net emissions balance indicating carbon negativity

for cooling food, two clay pots of different sizes placed separately inside each other with moist sand

building or device used to collect water by condensing the water vapor present in the air

low-cost personal computer

ventilation using solar energy

right|thumb|Nurse using a mobile phone in Accra, Ghana mHealth (also written as m-health or mhealth), an abbreviation for mobile health, is the practice of medicine and public health supported by mobile devices. The term is most commonly used in reference to using mobile communication devices, such as mobile phones, tablet computers and personal digital assistants (PDAs), and wearable devices such as smart watches, for health services, information, and data collection. The mHealth field has emerged as a sub-segment of eHealth and digital health, the use of information and communication technol

American counterculture publication

thumb|A LifeStraw thumb|Use of LifeStraw LifeStraw is a brand of water filtration and purification devices. The original LifeStraw was designed as a portable water filter "straw". It filters a maximum of 4,000 litres of water, and enough for one person for three years. It removes almost all waterborne bacteria, microplastics and germs. A bottle was later developed which incorporated a LifeStraw cartridge into a BPA-free plastic sports water bottle. In addition to these portable filters, the manufacturer produces high-volume purifiers powered by gravity that also remove viruses. These are desig

vehicle that emits no tailpipe pollutants from the local and onboard source of power

timer-controlled electric switch

water purification device

building material

type of man-made water body, filled by condensation or precipitation

type of hydroelectric power that typically produces from 5 kW to 100 kW of electricity using the natural flow of water

storage of heat or cold for periods of up to several months

Jiangsu Lemote Tech Co., Ltd or Lemote () is a computer company established as a joint venture between the Jiangsu Menglan Group and the Chinese Institute of Computing Technology, involved in computer hardware and software products, services, and projects.

rainwater harvesting technique

2013 organization

container used to collect rainwater

thumb|right|300px|Cal-Earth polypropylene tubes (sandbags) being used to construct domed structures thumb|right|300px|Superadobe Construction

a digital book or e-book

Building method

In broadcast television, cord-cutting refers to the pattern of viewers, known as cord-cutters, canceling their subscriptions to multichannel television services available over cable or satellite, dropping pay television channels or reducing the number of hours of subscription television viewed in response to competition from rival media available over the Internet. This content is either free or significantly cheaper than the same content provided via cable.

structure engineered to allow groundwater to be obtained from a natural spring

mechanical collection of water from fog

fine-pored filter used for purifying water

device used to carry clean water more easily and efficiently than traditional methods, particularly in the developing world and rural areas

term used for hydroelectric power generation of under 5 kW

technology to supply energy by single wire where earth will serve as return conductor

foot operated water pump

Australian, rudimentary refrigeration device

thumb|Playpower 8-bit logo PlayPower is a non-profit organization designed to create free educational computer software for low income families in India and other developing countries. After 2012 the project was reformed as PlayPower Labs, LLC, which focuses now on educational games for mobile platforms.

computer

award

water filtration technique

thumb GravityLight was a gravity-powered lamp manufactured until 2019. It was designed by the company Deciwatt for use in developing or third-world nations, as a replacement for kerosene lamps. It uses a bag filled with rocks or earth, attached to a cord, which slowly descends similar to the weight drive in a cuckoo clock. This action was claimed to power the light for up to twenty minutes. The design never proceeded beyond a limited number of early prototypes which did not appear to be practically usable by many consumers, and the company announced a change of direction in 2020.