sonnen GmbH (proprietary name and abbreviated form: sonnen) is a company in the energy industry headquartered in Wildpoldsried in the district of Oberallgäu, Germany. It produces home energy storage systems for private households and small businesses.

Futures studies, futures research or futurology is the systematic, interdisciplinary and holistic study of social and technological advancement, and other environmental trends, often for the purpose of exploring how people may live and work in the future. Futures studies scholars make predictions of the future and aim…

Ukraine has a developing social market economy. It possesses many of the components of a major European economy, such as rich farmlands, a well-developed industrial base, highly-trained labour, and a well-funded education system.

The HTC Droid Incredible (ADR6300) (also known as the HTC Incredible) is a smartphone manufactured by HTC Corporation using the Android operating system. It was released on April 29, 2010, and is available through Verizon Wireless only.

Capital Bikeshare (also abbreviated CaBi) is a bicycle-sharing system that serves Washington, D.C., and certain counties of the larger metropolitan area. As of August 2025, it had 800+ stations and more than 8,000 bicycles.

The earliest human civilizations developed independently of each other and a cradle of civilization is a location and a culture from which one of them emerged. A civilization is any complex society characterized by the development of a state, social stratification, urbanization, and symbolic systems of communication…

Energy engineering is a multidisciplinary field of engineering that focuses on optimizing energy systems, developing renewable energy technologies, and improving energy efficiency to meet the world's growing demand for energy in a sustainable manner. It encompasses areas such as energy harvesting and storage, energy…

The planet Mars has been explored remotely by spacecraft. Probes sent from Earth, beginning in the late 20th century, have yielded a large increase in knowledge about the Martian system, focused primarily on understanding its geology and habitability potential.

Heating, ventilation, and air conditioning (HVAC ) systems regulate temperature, humidity, and indoor air quality in vehicles and buildings. They are designed to provide thermal comfort and to control airborne contaminants through heating, cooling, ventilation, filtration, and humidity control.

Heat recovery ventilation (HRV), also known as mechanical ventilation heat recovery (MVHR) is a ventilation system that recovers energy by operating between two air sources at different temperatures. It is used to reduce the heating and cooling demands of buildings.