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Fire Equipment 防火用具http://www.druidfireinc.com/Equipment 器材A broader definition of a tool is an entity used to interface between two or more domains that facilitates more effective action of one domain upon the other. The most basic tools are simple machines. For example, a crowbar simply functions as a lever. The further out from the pivot point, the more force is transmitted along the lever. A hammer typically interfaces between the operator's hand and the nail the operator wishes to strike.
A telephone is a communication tool that interfaces between two people engaged in conversation at one level. And between each user and the communication network at another. It is in the domain of media and communications technology that a counterintuitive aspect of our relationships with our tools first began to gain popular recognition. Marshall McLuhan famously said "We shape our tools. And then our tools shape us." McLuhan was referring to the fact that our social practices co-evolve with our use of new tools and the refinements we make to existing tools.
Tools that have evolved for use in particular domains can be given different assignations. For example, tools designed for domestic use are often called utensils.
Observation has confirmed that that multiple species can use tools, including monkeys, apes, several birds, sea otters, and others. Philosophers originally thought that only humans had the ability to make tools, until zoologists observed birds and monkeys making tools. Now humans' unique relationship to tools is considered to be that we are the only species that uses tools to make other tools.
Most anthropologists believe that the use of tools was an important step in the evolution of mankind. Humans evolved an opposable thumb - useful in holding tools - and increased dramatically in intelligence, which aided in the use of tools.
Cutting tools, such as the knife, scythe or sickle, are wedge-shaped implements that produce a shearing force along a narrow face. Ideally, the edge of the tool needs to be harder than the material being cut or else the blade will become dulled with repeated use. But even resilient tools will require periodic sharpening, which is the process of removing deformation wear from the edge. Also gouges and drill bits.
Moving tools move huge and tiny things, e.g. concentrating force tools like the hammer moves a nail, the maul moves a stake, or a whip moves flesh on a horse. These operate by applying physical compression to a surface. In the case of the screwdriver, the force is sideways and called torque. Writing implements deliver a fluid to a surface via compression to activate the ink cartridge. Also grabbing and twisting nuts and blots with pliers, a glove, a wrench, etc...) All these tools move items by some kind of force. Also Trucks, Rockets and Planes move larger items.
Tools which enact chemical changes, including temperature and ignition, such as lighters, blowtorches and solvent sprays.
Guiding and measuring tools include the ruler, set square, straightedge and theodolite.
Shaping tools, such as moulds, jigs, trowels, concrete formwork, caulk, concrete.
Fastening tools, such as welders, rivet guns, nail guns, glue guns, glue.
Protective gear items are not considered tools, because they do not directly help perform work, just protect the worker like ordinary clothing. Personal protective equipment includes such items as gloves, safety glasses, ear defenders and biohazard suits.
もし新車に買い換える場合、下取りよりも買取が高いそうです。中古車買取相場チェックから始めましょう。自動車保険で有名なソニー損保の評判が紹介してあります。大手で安いイメージのソニー損保はどうなのでしょうか。高校よりも中学が大事と言われる昨今。小学生の夏期講習が注目されています。自宅でホワイトニング!革命のトゥースメディカルホワイトが大ヒット中!激安海外旅行てるみくらぶが今話題ですね。テレビでも特集されていました。薬品会社の小林製薬ならではの品質とこだわりの素材を使った育毛剤アロエ525が今人気です。525円で試せるのはうれしい限り! Fire protection 火保護Fire protection is the study and practice of mitigating the unwanted effects of fires. It involves the study of the behaviour, compartmentalisation, suppression and investigation of fire and its related emergencies, as well as the research and development, production, testing and application of mitigating systems. In structures, be they land-based, offshore or even ships, the owners and operators are responsible to maintain their facilities in accordance with a design-basis that is rooted in laws, including the local building code and fire code, which are enforced by the Authority Having Jurisdiction. Buildings must be constructed in accordance with the version of the building code that is in effect when an application for a building permit is made. Building inspectors check on compliance of a building under construction with the building code. Once construction is complete, a building must be maintained in accordance with the current fire code, which is enforced by the fire prevention officers of a local fire department. In the event of fire emergencies, Firefighters, fire investigators, and other fire prevention personnel called to mitigate, investigate and learn from the damage of a fire. Lessons learned from fires are applied to the authoring of both building codes and fire codes.
In the United States, this term is used by engineers and code officials when referring only to active and passive fire protection systems, and does usually not encompass fire detection systems such as fire alarms or smoke detection.
Fire protection has three major goals:
Life safety - the minimum standard used in fire and building codes.
Property protection - on a public scale, this is intended to prevent area wide conflagrations. At an individual building level, this is typically an insurance consideration (e.g., a requirement for financing), or a regulatory requirement.
Continuity of operations - on a public scale, this is intended to prevent the interruption of critical services necessary for the public welfare (e.g., a 911 emergency call center). To a private owner, this is typically not a regulatory issue, but is self-motivated, sometimes partially due to fire insurance considerations. Interruption of operations due to fire damage can be very costly. For instance, the lost revenue to a power company if a nuclear reactor is shut down due to a fire may cost about one million US dollars per day.
from wikipedia | ![]() |