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Bottle bombs (also commonly known as Drano bombs or works bombs) are not a new phenomenon; they've been a favorite of youthful pranksters for decades, as their construction requires only a few ordinary, commonly available components: plastic soda bottles, aluminum foil, and Drano (or other brand of household drain or toilet cleaner): In general, one need simply push some aluminum foil balls into a plastic bottle, add some Drano, and screw the cap tightly onto the bottle to create a Drano bottle bomb. The combination of the hydrogen chloride or sodium hydroxide in the fluid and the aluminum foil creates a strong chemical reaction which releases hydrogen gas; when that gas builds up to sufficient pressure, it ruptures the side of the plastic bottle, releasing the contents in an explosive burst: https://youtu.be/PRQpXMq46XAAlthough the force of pressure-based bottle bombs may seem small when compared to other types of explosives (such as gunpowder-based ones), any form of explosive has the potential to cause serious injury, and since bottle bombs have no conventional fuse they can be dangerously unpredictable, exploding earlier or later than their wielders expect. (Aluminum foil is typically coated with a layer of wax, so it can take up to ten minutes or so for the fluid to strip away the wax and react with the aluminum foil, enhancing the chances that a soon-to-explode bottle bomb may be picked up by an unwary passer-by.) Additionally, the caustic cleaning agents used in bottle bombs can cause severe burns when they come into contact with skin (either through spillage in the construction of the bombs or through being sprayed widely in the resulting explosions) and produce toxic fumes. The above-quoted e-mail warning about neighborhood residents discovering undetonated bottle bombs in their yards was sent out by Washtenaw County Sheriff's Deputy Keith Mansell in April 2010 after he discovered two Drano bombs left in the yards of residents of York Township, Michigan. For the most part, those who concoct bottle bombs mix the ingredients, immediately set their work aside, and stand back to watch it explode within a minute or two. However, there are ways of delaying the mixture and/or reaction of the ingredients so as to cause a delayed detonation, so those who discover objects that appear to be bottle bombs should refrain from handling them and contact authorities for removal. At about the same time as Deputy Mansell's warning hit the Internet, the town of Methuen, Massachusetts, experienced a rash of similar plastic-bottle bomb placements, including two that blew apart mailboxes: Some more cases of bottle bomb discoveries include one such item found on an Oregon elementary school playground on 18 February 2013: A woman residing in Wichita, Kansas, called police on 16 February 2013 after someone detonated bottle bombs nearby: Also in February 2013, police in Beavercreek, Ohio, warned residents about a recent rash of Drano bottle bomb incidents in the community:
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