My husband seems to be allergic to dust mites, because ever time he gets on the bed his asthma and allergies suddenly act up. So I'm wondering, does anyone know if wrapping the mattress in handy-wrap would protect from dust mites (as well as the toxic chemicals of the mattress)? I'm trying to find a more economical solution to expensive mattress covers. I will also do the hot wash of the bedding once a week and more frequent vacuuming see if that helps. So will handy-wrap be the same as a zip up cover?
As another person said, you have already stated the reason. Water gushing out at HIGH SPEEDS is the reason there is a reaction at the hose. The system of firefighter/hose nozzle is analogous to a rocket and nozzle, as the water is to hot propellant. The water, with its substantial mass and high speed creates a physical impulse which must be balanced by the same force at the hose nozzle to maintain static equilibrium. The pressure of the water is an indirect cause. The pressure causes the water to speed up, or accelerate, through the nozzle. Anything that causes a massive substance to speed away from its projector, as a bullet from a gun, causes this same recoil effect.
Today police would be more likely to use rubber bullets as a means of stopping riots or preventing what they might believe to be something that could become a riot. It's all about crowd control, and a crowd can either become a riot (either a panic stricken riot of people all trying to run away at once or a more violent riot) or it can be a peaceable crowd. But before the creation of the rubber bullet police had few options open to them. They could do one of four things, shoot either into the crowd or into the air with lethal rounds that will most likely injure or kill someone, strike folks with clubs and riot shields, fire tear gas into the crowd, or turn hoses on the crowd. Each of these options is probably going to result in injury and possibly death. Yes, even hoses can injure folks cause we're not talking turning a garden hose here. It's a high pressure fire hose from which the water is coming out at between 100 and 300 pounds per square inch (psi) under normal operating conditions but can reach upwards of 1200 psi when used in it's burst pressure mode. That's enough to punch a hole in a brick wall, and that means that flesh and bone would offer far less resistance. Fire hoses were a less lethal means of getting a crowd to disperse. And they weren't just used on African Americans. Any crowd that police or those in power ordering the police to force to disperse could face the fire hose and the stinging spray of the water issuing from it.
They did this during riots thinking it would keep them under control or get them to go away .
