Sub-Saharan Africa is, geographically, the area of the continent of Africa that lies south of the Sahara. Politically, it consists of all African countries that are fully or partially located south of the Sahara. It contrasts with North Africa, which is considered a part of th... Explore this topic

Mobilais telefons ir bezvadu ierīce balss un datu pārraidei lielos attālumos. Tas ir viens no bezvadu telefonu veidiem. Tas balstās uz komunikācijām starp telefonu un bāzes staciju, kas savstarpēji atrodas relatīvi tuvu. Lai nodrošinātu sakarus plašākā teritorijā, lieto vairāk... Explore this topic

Welcome to Solar Energy, a shared, online source of facts and information built by fans, enthusiasts and experts around the world. Join us and be a part of building and improving it! Explore this topic

Renewable energy is energy that comes from resources which are continually replenished such as sunlight, wind, rain, tides, waves and geothermal heat. About 16% of global final energy consumption comes from renewable resources, with 10% of all energy from traditional biomass, ... Explore this topic

Botswana, officially the Republic of Botswana, is a landlocked country located in Southern Africa. The citizens refer to themselves as "Batswana", but many English-language sources use "Botswanan" instead. Formerly the British protectorate of Bechuanaland, Botswana adopted its... Explore this topic

Sustainable energy is the sustainable provision of energy that meets the needs of the present without compromising the ability of future generations to meet their needs. Technologies that promote sustainable energy include renewable energy sources, such as hydroelectricity, so... Explore this topic

Africa is the world's second-largest and second-most-populous continent. At about 30.2 million km² including adjacent islands, it covers six percent of the Earth's total surface area and 20.4 percent of the total land area. With 1.0 billion people, it accounts for about 15% of... Explore this topic

Environmentalism is a broad philosophy, ideology and social movement regarding concerns for environmental conservation and improvement of the health of the environment, particularly as the measure for this health seeks to incorporate the concerns of non-human elements. Environ... Explore this topic

Climate change is a significant and lasting change in the statistical distribution of weather patterns over periods ranging from decades to millions of years. It may be a change in average weather conditions, or in the distribution of weather around the average conditions. Cli... Explore this topic

A solar panel is a packaged, connected assembly of photovoltaic cells. The solar panel can be used as a component of a larger photovoltaic system to generate and supply electricity in commercial and residential applications. Each panel is rated by its DC output power under sta... Explore this topic