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In the UK, water mills are known to have been in use 900 years ago. Their numbers grew steadily and by the 19th century, there were over 20,000 in operation in England alone. In Europe, Asia and parts of Africa, water wheels were used to drive a variety of industrial machinery, such as mills and pumps. The first effective water turbines appeared in the mid 19th century and it was not long before they were replacing water wheels in many applications. In contrast to water wheels and the early turbines, modern turbines are compact, highly efficient and capable of turning at very high speed. Hydropower is a well-proven technology, relying on a non-polluting, renewable and indigenous resource, which can integrate easily with irrigation and water supply projects.
Micro filter dams at Pedregal, a Permaculture Demonstration Center in Oaxaca, Mexico.
Apr 24 Cycling news 2018: What Cities Need to Understand About Bikeshare Now [1]
Apr 23 1000 Electric Buses To Spearhead Paris Goal Of 100% Zero Emissions Public Transportation [2]
Apr 17 Florida: Miami's sharing potential [3]
Apr 17 Denmark: How do we utilize local knowledge so that others can benefit from it? A guide from the Danish Island of Samsø [4]
Apr 16 Reduce, reuse, repair and recycle: Recycling hope for plastic-hungry enzyme [5]
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The term is usually used to describe simple technologies proponents consider suitable for use in developing nations or less developed rural areas of industrialized nations. This form of "appropriate technology" usually prefers labor-intensive solutions over capital-intensive ones, although labor-saving devices are also used where this does not mean high capital or maintenance cost. In practice, appropriate technology is often something described as using the simplest level of technology that can effectively achieve the intended purpose in a particular location. In industrialized nations, the term appropriate technology takes a different meaning, often referring to engineering that takes special consideration of its social and environmental ramifications. |
ENGR 215 Introduction to Design projects – Fall 2010: HBCSL Somoa Hostel: The Fall 2010 semester of Engineering 215 worked with Humboldt Bay Center for Sustainable Living to design and build projects that support a proposed eco-hostel in Humboldt County.
| Fall 2010 ENGR 215 Intro to Design Projects - HBCSL | ||||||||||||||||||||
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