Appropedia needs your support - Please Donate Today

Welcome to Appropedia

From Appropedia
(Redirected from $1)
Jump to: navigation, search
edit  watch  

Sharing knowledge to build rich, sustainable lives.

Appropedia is for collaborative solutions
in sustainability, appropriate technology, poverty reduction, and permaculture.

You are welcome to add to and edit Appropedia -
your site to find, co-create and improve the solutions we need. Our vision and mission.

Contributors have made 358,256 edits and uploaded 28,501 files.
Browse our categories or all 7,630 articles.

edit  watch  

Announcements — more

Aprologo-old-90-fb-twtter.png Please follow us on Facebook and Twitter.


edit  watch  Selected page (refresh)
Direct and diffuse solar radiation (Practical Action)
Solar thermal energy. The sun is the source of the vast majority of the energy we use on earth. Most of the energy we use has undergone various transformations before it is finally utilized, but it is also possible to tap this source of solar energy as it arrives on the earth’s surface.

There are many applications for the direct use of solar thermal energy, space heating and cooling, water heating, crop drying and solar cooking. It is a technology which is well understood and widely used in many countries throughout the world. Most solar thermal technologies have been in existence in one form or another for centuries and have a well-established manufacturing base in most sun-rich developed countries.

The most common use for solar thermal technology is for domestic water heating. Hundreds of thousands of domestic hot water systems are in use throughout the world, especially in areas such as the Mediterranean and Australia where there is high solar insolation (the total energy per unit area received from the sun). As world oil prices vary, it is a technology which is rapidly gaining acceptance as an energy saving measure in both domestic and commercial water heating applications. Presently, domestic water heaters are usually only found amongst wealthier sections of the community in developing countries.

edit  watch  Highlighted project (Book) (refresh)
Parabolic basket and tin can solar cooker

Creating a solar cooker out of local invasive species and waste materials in order to pasteurize water and be an alternative to the use of fossil fuels for cooking food.

edit  watch  

Community action news

Budapest1.jpg
Jun 22 Experimental Community Organising – Transition Hungary [1]

Jun 19 Community energy: The Case for Local, Community-led Sustainable Energy Programs [2]

Jun 19 Community energy USA: How Electricity Cooperatives in the US are Paving the Way for a Renewable Future [3]

Jun 17 Costa Rica Could Reach 300 Days Running on Clean Energy [4]

Jun 16 New York City: New York’s new climate program includes making friends — seriously. Here’s why. [5]

Read More...


edit  watch  Selected quote
William Cullen Bryant
A breeze came wandering from the sky, light as the whispers of a dream; He put the overhanging grasses by, and softly stooped to kiss the stream, The pretty stream, the flattered stream, The shy, yet unreluctant stream of wind.

William Cullen BryantW
edit  watch  

Hot topics / In the news

edit  watch  

Blog

Kiva's straw bale greenhouse
An alternative or natural building involves a range of building systems and materials that place major emphasis on sustainability. Ways of achieving sustainability through natural building focus on durability and the use of minimally processed, plentiful or renewable resources, as well as those that, while recycled or salvaged, produce healthy living environments and maintain indoor air quality. Natural building tends to rely on human labor, more than technology. As Michael G. Smith observes, it depends on "local ecology, geology and climate; on the character of the particular building site, and on the needs and personalities of the builders and users."

The basis of natural building is the need to lessen the environmental impact of buildings and other supporting systems, without sacrificing comfort, health or aesthetics. To be more sustainable, natural building uses primarily abundantly available, renewable, reused or recycled materials. The use of rapidly renewable materials is increasingly a focus. In addition to relying on natural building materials, the emphasis on the architectural design is heightened. The orientation of a building, the utilization of local climate and site conditions, the emphasis on natural ventilation through design, fundamentally lessen operational costs and positively impact the environmental. Building compactly and minimizing the ecological footprint is common, as are on-site handling of energy acquisition, on-site water capture, alternate sewage treatment and water reuse.

edit  watch  Selected service learning Projects gallery (refresh)

MOST completed projects and publications: This category lists completed projects for the Category:MOST. Following the individual links leads to a summary of the project and key findings, related literature reviews, methods, protocols, and equipment, and an open access version of the paper published in a peer reviewed journal.

Michigan Tech Open Sustainability Technology Group Completed Projects and Publications 2011-2012
edit  watch  

Selected categories

Topics
Energy

Solar
Water
edit  watch  

Construction zone — correct mistakes & flag spam as needed

Newest articles more Wanted pages - click to add info more
Under construction
New pages being developed:
  1. IRC
  2. Open Source Multi-Head 3D Printer for Polymer-Metal Composite Component Manufacturing
  3. Factors effecting real-time optical monitoring of fused filament 3D printing
  4. Technical Solar Photovoltaic Potential of Scaled Parking Lot Canopies- A Case Study of Walmart U.S.A.
  5. Project Green Umbrella
  6. Energy Payback Time of a Solar Photovoltaic Powered Waste Plastic Recyclebot System
  7. RecycleBot Modification
  8. Rainwater calculators
  9. Hidden non-vegetarian ingredients
  10. Gravity fed drip irrigation, automated

Note: Appropedia's newest pages may not yet comply with our policies. Page titles in italics are "redirects," often created when moving a page.

Under construction

Create a new page:

  1. Nutrition
  2. Bacteria‏‎
  3. Human development
  4. Environmental science
  5. Open sustainability
  6. New Urbanism‏‎
  7. Building management systems
  8. Science‏‎
  9. Microgeneration
  10. Environmental design

These red links are invitations for you to contribute your knowledge.

Or create a page on the topic of your choice.

Newest files - images and documents that can be added to pages more

Note: Appropedia's newest files may not yet comply with our policies.

edit  watch  

Please help Appropedia grow!

We want your projects, current works, observations and wisdom! See Contributing content. Improve articles by clicking "edit" at top of the page or section. Our philosophy is: Be Bold and contribute!

Questions? Comments? Visit the Village Pump. Also discuss Appropedia and related topics over on the Permies permaculture forums.

Find us on Facebook, Pinterest, StumbleUpon and Twitter. Check our Flickr images and YouTube videos.

edit  watch