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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]
Pyrolysis GC/MS chromatogram of mahogany wood analyzed with OpenChrom. Pyrolysis–gas chromatography–mass spectrometry is a method of chemical analysis in which the sample is heated to decomposition to produce smaller molecules that are separated by gas chromatography and detected using mass spectrometry. [1][2]
Pyrosequencing is a method of DNA sequencing (determining the order of nucleotides in DNA) based on the "sequencing by synthesis" principle, in which the sequencing is performed by detecting the nucleotide incorporated by a DNA polymerase. Pyrosequencing relies on light detection based on a chain reaction when pyrophosphate is released.
Gourd decoration, including pyrography, is an ancient tradition in Africa and Asia as well as among the indigenous peoples of the Americas, [2] notably the central highland people of Peru, the Navajo, Hopi and Pueblo nations of the American Southwest, and the Nuxálk and Haida nations of British Columbia. Gourd crafting and painting has evolved ...
The swivel knife is held with one finger providing downward pressure upon a stirrup-like top and drawn along the leather to outline patterns. The other tools are punch-type implements struck with a wooden, nylon, metal or rawhide mallet. The object is to add further definition, texture and depth to the cut lines made by the swivel knife and the ...
6c —Fraternal twins with the desired trait, not expressed in their mother, are born. Preimplantation genetic diagnosis (PGD or PIGD) is the genetic profiling of embryos prior to implantation (as a form of embryo profiling), [1] and sometimes even of oocytes prior to fertilization. PGD is considered in a similar fashion to prenatal diagnosis.
Rose engine lathe. A rose engine lathe is a specialized kind of geometric lathe. The head stock rocks back and forth with a rocking motion and/or slides along the spindle axis in a pumping motion. A rosette or cam-like pattern mounted on the spindle is controlled by moving against a cam follower (s) while the lathe spindle rotates.
Jordan Mang-osan (born 21 September 1967 in Acupan, Itogon Benguet) is a Filipino artist who harnesses the power of the sun to create pyrography drawings. [1][2] Pyrography is the art of decorating wood or other materials with burn marks. [3][4][5][6] Mang-osan is an Igorot from the Cordilleras who stays true to his roots by working with raw ...
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