Size of this preview: 800 × 598 pixels. Other resolutions: 320 × 239 pixels | 640 × 478 pixels | 1,024 × 766 pixels | 1,280 × 957 pixels | 2,472 × 1,848 pixels.
Original file (2,472 × 1,848 pixels, file size: 682 KB, MIME type: image/jpeg)
Summary
| Description |
English: A hand-drawn picture of a diy-waterfilter, which can be made in the field with commonly available materials (branches, cloth, sand, charcoal and grass). It can be used to filter (slightly contaminated/polluted) water so that it is safe for drinking. Charcoal can be produced from wood by the indirect (preferred method) and the direct method. The direct method is easiest and requires only wood, an open fire and some plant material to allow the wood to burn up incompletely (see this website for links). The indirect method (which produces far less smoke and is healthier for environment and the person making the coal) is found here and here. The picture has been drawn after a model from Peter Darman's The Survival Handbook. |
| Date | |
| Source | Own work |
| Author | KVDP |
Licensing
|
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:08, 13 December 2013 | | 2,472 × 1,848 (682 KB) | wikimediacommons>Rillke | adjusted color levels (uploaded using chunked upload script) |
File usage
There are no pages that use this file.
