User:MrBell/sandbox

Rosen, Milton J (2004), Surfactants and Interfacial Phenomena (3 ed.), Surfactant Research Institute, Brooklyn College, The City University of New York: John Wiley and Sons, Inc, ISBN 0471478180

• US 3947261, Sale, Ernest W & Hodges, John W., "Production of ammonium polyphosphate solutions", published 30 March 1976, assigned to Agrico Chemical Company (Tulsa, OK) 
• Leikam, Dale F. (24 April 2008). "Storage and Handling Characteristics Of Ammonium Polyphosphate Solution" (PDF). Fluid Fertilizer Foundation.

How do I change {{Wildland Firefighting}} so that the picture always shows but the remainder is collapsable? (See {{Template:Christian denominations}} and {{Template:Christianity}})

Part of a series on Wildland Firefighting	Part of a series on Wildland Firefighting
Main articles
Wildfire  · Bushfire Wildfire suppression
Agencies
National Interagency Fire Center USFS  · BLM CALFIRE  · CALFIRE Aviation New South Wales Rural Fire Service  · Country Fire Authority, Victoria  · Country Fire Service, South Australia
Tactics & Equipment
Incident Command System Aerial firefighting Controlled burn Firebreak  · Fire trail Fire lookout tower Fire-retardant gel Fire fighting foam Fire retardant  · MAFFS Helicopter bucket  · Driptorch
Personnel
Handcrew  · Hotshots Helitack  · Smokejumper Rappeller  · Engine crew
Lists
List of wildfires Glossary of wildfire terms

Human involvement

See also: Control of fire by early humans, Deforestation § Historical causes, Environmental history, History of firefighting, and List of wildfires

The human use of fire for agricultural and hunting purposes during the Paleolithic and Mesolithic ages altered the preexisting landscapes and fire regimes. Woodlands were gradually replaced by smaller vegetation that facilitated travel, hunting, seed-gathering and planting. In recorded human history, minor allusions to wildfires were mentioned in the Bible and by classical writers such as Homer. However, while ancient Hebrew, Greek, and Roman writers were aware of fires, they were not very interested in the uncultivated lands where wildfires occurred. Wildfires were used in battles throughout human history as early thermal weapons.

From the Middle ages, accounts were written of occupational burning as well as customs and laws that governed the use of fire. In Germany, regular burning was documented in 1290 in the Odenwald and in 1344 in the Black Forest.

In 14th century Sardinia, firebreaks were used for wildfire protection. In Spain during the 1550s, sheep husbandry was discouraged in certain provinces by Philip II due to the harmful effects of fires used in transhumance. In the countries bordering the Baltic Sea, fire in land use systems was typical during the Neolithic period until World War II. As early as the 1600s, Native Americans were observed using fire for many purposes including cultivation, signaling, and warfare. Scottish botanist David Douglas noted the native use of fire for tobacco cultivation, to encourage deer into smaller areas for hunting purposes, and to improve foraging for honey and grasshoppers. Charcoal found in sedimentary deposits off the Pacific coast of Central America suggests that more burning occurred in the 50 years before the Spanish colonization of the Americas than after the colonization.