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  2. Combustibility and flammability - Wikipedia

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

    A heavy oak desk is much harder to ignite, even though the wood fibre is the same in all three materials. Common sense (and indeed scientific consensus until the mid-1700s) would seem to suggest that material "disappears" when burned, as only the ash is left. Further scientific research has found that conservation of mass holds for chemical ...

  3. Pyrophoricity - Wikipedia

    en.wikipedia.org/wiki/Pyrophoricity

    The creation of sparks from metals is based on the pyrophoricity of small metal particles, and pyrophoric alloys are made for this purpose. [2] Practical applications include the sparking mechanisms in lighters and various toys, using ferrocerium; starting fires without matches, using a firesteel; the flintlock mechanism in firearms; and spark testing ferrous metals.

  4. Flash point - Wikipedia

    en.wikipedia.org/wiki/Flash_point

    To ignite, the fuel must have a low flash point, but in order to avoid preignition caused by residual heat in a hot combustion chamber, the fuel must have a high autoignition temperature. Diesel fuel flash points vary between 52 and 96 °C (126 and 205 °F). Diesel is suitable for use in a compression-ignition engine.

  5. EPA rushes to meet deadline to clear toxic debris from L.A ...

    www.aol.com/news/epa-rushes-meet-deadline-clear...

    An executive order signed by President Trump in late January called for the EPA to expedite its removal of hazardous materials from the Los Angeles area wildfire zones.

  6. Loss on ignition - Wikipedia

    en.wikipedia.org/wiki/Loss_on_ignition

    Temperature controlled furnace. Loss on ignition (LOI) is a test used in inorganic analytical chemistry and soil science, particularly in the analysis of minerals and the chemical makeup of soil.

  7. When do pitchers, catchers report to spring training? Report ...

    www.aol.com/pitchers-catchers-report-spring...

    When does MLB spring training start? (Pitchers and catchers report date, first full squad workout) Cactus League (Arizona) Arizona Diamondbacks: Feb. 12, Feb. 17 ...

  8. Spontaneous combustion - Wikipedia

    en.wikipedia.org/wiki/Spontaneous_combustion

    A large compost pile can spontaneously combust if improperly managed. Spontaneous combustion or spontaneous ignition is a type of combustion which occurs by self-heating (increase in temperature due to exothermic internal reactions), followed by thermal runaway (self heating which rapidly accelerates to high temperatures) and finally, autoignition. [1]

  9. Your February Horoscope Is Full of Unpredictable Shifts and ...

    www.aol.com/lifestyle/february-horoscope-full...

    Love, passion and self-expression are front and center for you this month, Aries. Once Venus enters your sign on Feb. 4, your charm and magnetism get a significant boost, making you feel like the ...