• After an oil drilling operation in 1903 in Dexter, Kansas, produced a gas geyser that would not burn, Kansas state geologist Erasmus Haworth collected samples of the escaping gas and took them back to the University of Kansas at Lawrence where, with the help of chemists Hamilton Cady and David McFarland, he discovered that the gas consisted of, by volume, 72% nitrogen, 15% methane (a combustible percentage only with sufficient oxygen), 1% hydrogen, and 12% an unidentifiable gas.
  • Wikipedia: Helium
  • Alternatively, it could be launched in jars fired from catapults; pivoting cranes (gerania) are also mentioned as a method of pouring combustibles onto enemy ships.
  • Wikipedia: Byzantine navy
  • An effort to bulldoze a wide fire break and set backfires to try to starve the fires of combustibles almost led to disaster when an unexpected change in wind direction brought the fires to within a hundred yards of parts of the town, forcing evacuations on September 6.
  • Wikipedia: Yellowstone fires of 1988
  • Common drawbacks of internal combustion technologies are that the combustible oil shale gas is diluted by combustion gases and particles smaller than 10 millimeters (0.4 in) can not be processed.
  • Wikipedia: Shale oil extraction
  • Furthermore, because the use of compressed gases in GMAW pose an explosion and fire risk, some common precautions include limiting the amount of oxygen in the air and keeping combustible materials away from the workplace.
  • Wikipedia: Gas metal arc welding
  • Highly combustible materials that leave little residue, such as wood or coal, were thought to be made mostly of phlogiston; whereas non-combustible substances that corrode, such as iron, contained very little.
  • Wikipedia: Oxygen
  • The destruction of the Hindenburg airship was an infamous example of hydrogen combustion; the cause is debated, but the visible flames were the result of combustible materials in the ship's skin.
  • Wikipedia: Hydrogen
  • The site contained an air raid shelter for the operational crew and several combustible devices used to simulate fires and lights.
  • Wikipedia: Carrington Moss
  • The Thames offered water for firefighting and the chance of escape by boat, but the poorer districts along the riverfront had stores and cellars of combustibles which increased the fire risk.
  • Wikipedia: Great Fire of London
  • The Vandals had filled many vessels with combustible materials.
  • Wikipedia: Basiliscus
  • The vehicle carries 42 rounds of ammunition, with combustible cartridge cases.
  • Wikipedia: AMX-30
  • Upon cooling the vapor, the liquid shale oil—an unconventional oil—is separated from combustible oil-shale gas (the term shale gas can also refer to gas occurring naturally in shales).
  • Wikipedia: Oil shale