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Pyrography or pyrogravure is the free handed art of decorating wood or other materials with burn marks resulting from the controlled application of a heated object such as a poker. It is also known as pokerwork or wood burning. [1] The term means "writing with fire", from the Greek pyr (fire) and graphos (writing). [2]
Lichtenberg figures can also be produced on wood. The types of wood and grain patterns affect the shape of the Lichtenberg figure produced. [16] By applying a coat of electrolytic solution to the surface of the wood, the resistance of the surface drops considerably. Two electrodes are then placed on the wood and a high voltage is passed across ...
Light burning is also been called "Paiute forestry," a direct but derogatory reference to southwestern tribal burning habits. [52] The ecological impacts of settler fires were vastly different than those of their Native American predecessors. Cultural burning practices were functionally made illegal with the passage of the Weeks Act in 1911. [53]
These 50 printable pumpkin carving templates are ready to inspire you. On each image, click "save image as" and save the JPEGs to your computer desktop. From there, you can print them!
Climate change is already now altering biomes, adversely affecting terrestrial and marine ecosystems. [2][3] Climate change represents long-term changes in temperature and average weather patterns. [4][5] This leads to a substantial increase in both the frequency and the intensity of extreme weather events. [6]
Cultural burning. Cultural burning is the process of using prescribed burns to manage landscapes, a process used primarily by Indigenous peoples; more specifically the Indigenous people of Australia and the Western parts of North America [1][2][3][4][5][6][7] have been found to use this method extensively. This practice created a relationship ...
Slash-and-burn agriculture is a farming method that involves the cutting and burning of plants in a forest or woodland to create a field called a swidden. The method begins by cutting down the trees and woody plants in an area. The downed vegetation, or "slash", is then left to dry, usually right before the rainiest part of the year.
Pyrolysis liquids from slow pyrolysis of bark and hemp have been tested for their antifungal activity against wood decaying fungi, showing potential to substitute the current wood preservatives [97] while further tests are still required. However, their ecotoxicity is very variable and while some are less toxic than current wood preservatives ...
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