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  2. 2023 Oregon wildfires - Wikipedia

    en.wikipedia.org/wiki/2023_Oregon_wildfires

    This article is a summary of the 2023 Oregon wildfire season, comprising the series of significant wildfires that have burned in the U.S. state of Oregon since the beginning of the calendar year. Fire season officially began in all areas of the state by July 1, according to the Oregon Department of Forestry (ODF).

  3. Glossary of wildfire terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_wildfire_terms

    Also referred to as air attack. The use of aircraft in support of ground resources to combat wildfires, often most effective in initial attack in light fuels. air drop The delivery of supplies or fire retardant from the air. Supplies can be dropped by parachute, while retardant is generally released in a single drop of one or more trails, the size of which is determined by the wind and the ...

  4. Glossary of chemistry terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemistry_terms

    Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...

  5. Glossary of firefighting - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_firefighting

    Firefighting jargon includes a diverse lexicon of both common and idiosyncratic terms. One problem that exists in trying to create a list such as this is that much of the terminology used by a particular department is specifically defined in their particular standing operating procedures, such that two departments may have completely different terms for the same thing.

  6. Ultralingua - Wikipedia

    en.wikipedia.org/wiki/Ultralingua

    The concept of the Ultralingua dictionary software began in 1996, when a small group of professors from Carleton College had the idea of creating a French dictionary that allowed the user to look up words on the fly with drag-and-drop technology, to and from a work in progress. The dictionary program was first developed for the Apple Macintosh ...

  7. Glossary of civil engineering - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_civil_engineering

    Also Abrams' water-cement ratio law. A law which states that the strength of a concrete mix is inversely related to the mass ratio of water to cement. As the water content increases, the strength of the concrete decreases. abrasion The process of scuffing, scratching, wearing down, marring, or rubbing away a substance or substrate. It can be intentionally imposed in a controlled process using ...

  8. Fire point - Wikipedia

    en.wikipedia.org/wiki/Fire_point

    The fire point, or combustion point, of a fuel is the lowest temperature at which the liquid fuel will continue to burn for at least five seconds after ignition by an open flame of standard dimension. [1] At the flash point, a lower temperature, a substance will ignite briefly, but vapour might not be produced at a rate to sustain the fire ...

  9. Combustibility and flammability - Wikipedia

    en.wikipedia.org/wiki/Combustibility_and...

    The word "inflammable" may be erroneously thought to mean "non-flammable". [3] The erroneous usage of the word "inflammable" is a significant safety hazard. Therefore, since the 1950s, efforts to put forward the use of "flammable" in place of "inflammable" were accepted by linguists, and it is now the accepted standard in American English and ...