Wikipedia:Main Page alternatives/(encyclopedia)
|
Takato Dam, a gravity dam in Japan A dam is a structure that impounds water or restricts its flow. The four types are gravity dams (example pictured), embankment dams, buttress dams, and arch dams. Dams provide irrigation, hydropower, water supply, flood management, recreation, inland navigation, and fish farming. An early dam was the Jawa Dam in modern Jordan, built around 3000 BCE. From the late 18th century, the process of designing dams changed from an informal practice to an engineering discipline. In the 20th century, the widespread availability of concrete led to the creation of many large dams worldwide. Dams may include locks, fish ladders, spillways, and power stations. Dams occasionally fail, resulting in flooding and loss of life. Organized opposition to dam projects emerged in the modern era, focused on environmental and social impacts such as the loss of plant and animal habitats, reduced water and sediment flow, degraded landscape aesthetics, the submergence of cultural sites, and forced relocations of people. (Full article...)
Recently featured: Stongdey is a village in the Zanskar valley in Ladakh, India, situated on the right bank of the Zanskar River, about 18 km (11 mi) northeast of Padum. Stongdey and the neighbouring village of Kumik had a combined population of 914 in the 2011 census. The local economy is largely agrarian, with snowmelt-fed irrigation compensating for the region's low precipitation. The villages have schools, electricity and mobile-phone service. Stongdey Monastery, founded in 1052, overlooks the village and is Zanskar's second-largest monastic institution. This photograph shows Stongdey from the northeast, with the Zanskar Range in the background. Photograph credit: Timothy A. Gonsalves Recently featured: Enrico Fermi – Cinnamon flycatcher – Pin tumbler lock
|
September 30: National Day for Truth and Reconciliation in Canada; Martyrs' Day in China
More anniversaries: |
About Wikipedia
- Help — A general help directory about anything and everything Wikipedia
- Navigation — An explanation of wikilinks and other methods of navigating the site
- Search — A help page about how to effectively search for articles
- Editing — An explanation of how to edit articles
- Current projects — On-going projects on which editors are currently focusing
- Reference desk — Ask volunteers encyclopaedic questions about many different subjects
- Mobile access — An explanation of how to access Wikipedia from a mobile device
- Contact us — Information about how to contact Wikipedia
Wikimedia Foundation
Wikipedia is made possible by the Wikimedia Foundation, a non-profit organization that hosts a range of projects coordinated by volunteers at Meta-Wiki. The largest projects are shown below:
| Wikipedia Encyclopedia | Wiktionary Dictionary & thesaurus | Wikibooks Textbooks & manuals | |||
| Wikiquote Quotations | Commons Free media | Wikinews News | |||
| Wikiversity Learning tools | Wikisource Source texts | Wikispecies Species directory |
Each project is available in multiple languages. This is the English Wikipedia, which is one of more than 250 Wikipedias currently available. Interlanguage links, appearing in the left column by default, are used to connect a page on the English Wikipedia to other Wikipedias' pages on the same subject. If an article exists in another Wikipedia but not here in English, you can visit the Translation Department for information about requesting translations or translating articles yourself.