A modern toolbox.

A tool is any item that can be used to achieve a goal, especially one that is not consumed in the process. Informally the word is also used to describe a procedure or process with a specific purpose. Tools that are used in particular fields or activities may have different designations such as Instrument, Utensil, Implement, Machine, or Apparatus. The set of tools needed to achieve a goal is equipment. The knowledge of constructing, obtaining and using tools is technology.

Tool use by humans dates back millions of years, and other animals are also known to employ simple tools.

History[link]

Prehistoric stone tools over 10,000 years old, found in Les Combarelles cave, France

Carpentry tools recovered from the wreck of a 16th century sailing ship, the Mary Rose.

Stone and metal knives

An upholstery regulator

Anthropologists believe that the use of tools was an important step in the evolution of mankind.^[1] Humans evolved an opposable thumb — useful in holding tools — and increased dramatically in intelligence, which aided in the use of tools.^[2] Because tools are used extensively by both humans and wild chimpanzees, it is widely assumed that the first routine use of tools took place prior to the divergence between the two species.^[3] These early tools, however, were likely made of perishable materials such as sticks, or consisted of unmodified stones that cannot be distinguished from other stones as tools. The beginning of the Stone Age marks the era when hominins first began manufacturing stone tools, and evidence of these tools dates back at least 2.6 million years in Ethiopia.^[4] One of the earliest distinguishable stone tool forms is the hand axe.

Tools are the most important items that the ancient humans used to climb to the top of the food chain; by inventing tools, they were able to accomplish tasks that human bodies could not, such as using a spear or bow and arrow to kill prey, since their teeth were not sharp enough to pierce many animals' skins.

The transition from stone to metal tools roughly coincided with the development of agriculture around the 4th millennium BC. Mechanical devices experienced a major expansion in their use in the Middle Ages with the systematic employment of new energy sources: water (waterwheels) and wind (windmills).

Machine tools occasioned a surge in producing new tools in the industrial revolution. Advocates of nanotechnology expect a similar surge as tools become microscopic in size.^[5][6]

Functions[link]

One can classify tools according to their basic functions:

• 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. Other examples of cutting tools include gouges and drill bits.
• Moving tools move huge and tiny things. For example, concentrating-force tools: 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 rotational and called torque. Writing implements deliver a fluid to a surface via compression to activate the ink cartridge. Also grabbing and twisting nuts and bolts with pliers, a glove, a wrench, etc. All these tools move items by some kind of force. Also trucks, rockets and airplanes move larger items and particle accelerators move very small items.
• Tools that enact chemical changes, including temperature and ignition, such as lighters and blowtorches.
• Guiding, measuring and perception tools include the ruler, glasses, set square, sensors, straightedge, theodolite, microscope, monitor, clock, phone, printer
• Shaping tools, such as molds, jigs, trowels.
• Fastening tools, such as welders, rivet guns, nail guns, or glue guns.
• Information and data manipulation tools, such as computers, middleware, IDE, spreadsheets

Some tools may be combinations of other tools. An alarm-clock is for example a combination of a measuring tool (the clock) and a perception tool (the alarm). This enables the alarm-clock to be a tool that falls outside of all the categories mentioned above.

There is some debate on whether to consider protective gear items as tools, because they do not directly help perform work, just protect the worker like ordinary clothing. They do meet the general definition of tools and in many cases are necessary for the completion of the work. Personal protective equipment includes such items as gloves, safety glasses, ear defenders and biohazard suits.

Tool substitution[link]

Often, by design or coincidence, a tool may share key functional attributes with one or more other tools. In this case, some tools can substitute for other tools, either as a makeshift solution or as a matter of practical efficiency. "One tool does it all" is a motto of some importance for workers who cannot practically carry every specialized tool to the location of every work task; such as a carpenter who does not necessarily work in a shop all day and needs to do jobs in a customer's house. Tool substitution may be divided broadly into two classes: substitution "by-design", or "multi-purpose" use, and substitution as makeshift. Substitution "by-design" would be tools that are designed specifically to accomplish multiple tasks using only that one tool. Substitution as makeshift is when human ingenuity comes into play and a tool is used for its unintended purpose such as a mechanic using a long screw driver to separate a cars control arm from a ball joint instead of using a tuning fork. In many cases, the designed secondary functions of tools are not widely known. As an example of the former, many wood-cutting hand saws integrate a carpenter's square by incorporating a specially shaped handle that allows 90° and 45° angles to be marked by aligning the appropriate part of the handle with an edge and scribing along the back edge of the saw. The latter is illustrated by the saying "All tools can be used as hammers." Nearly all tools can be used to function as a hammer, even though very few tools are intentionally designed for it and even fewer work as well as the original.

Tools are also often used to substitute for many mechanical apparatuses, especially in older mechanical devices. In many cases a cheap tool could be used to occupy the place of a missing mechanical part. A window roller in a car could easily be replaced with a pair of vice grips or regular pliers. A transmission shifter or ignition switch would be able to be replaced with a screw-driver. Again, these would be considered tools that are being used for their unintended purposes, substitution as makeshift. Tools such as a Dremel would be considered the substitution "by-design", or "multi-purpose". This class of tools allows the use of one tool that has at least two different capabilities. "Multi-purpose" tools are basically multiple tools in one device/tool. Tools such as this are often power tools that come with many different attachments like a Dremel does, so you could say that a power drill is a "multi-purpose" tool because you can do more than just one thing with a power drill.

Multi-use tools[link]

Bicycle multi-tool

A Multi-tool is a hand tool that incorporates several tools into a single, portable device; the Swiss army knife represents one of the earliest examples. Other tools have a primary purpose but also incorporate other functionality - for example, lineman's pliers incorporate a gripper and cutter, and are often used as a hammer; and some hand saws incorporate a carpenter's square in the right-angle between the blade's dull edge and the saw's handle. This would also be the category in which the "multi-purpose" tools since they are also multiple tools in one (multi-use and multi-purpose can be used interchangeably). These types of tools were specifically made to catch the eye of many different craftsman who traveled to do their work. To these workers these types of tools were revolutionary because they were one tool or one device that could do several different things. With this knew revolution of tools the traveling craftsman would not have to carry so many tools with them to job sites, being that their space would be limited to the vehicle they were driving. The problem of having to deal with so many different tools was solved with the overtaking of multi-use tools.

Tool metaphors[link]

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 counter-intuitive 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.

In North American colloquialism, the word "tool" may be loosely used to describe an individual of low mental capacity (essentially, an "idiot") or someone who fails to realise that they are being taken advantage of by others.^[7] This metaphor is drawn from the understanding that tools (as understood by most of society) are objects that are used for specific tasks.

Use by animals[link]

Observation has confirmed that multiple species can use tools including monkeys, apes, several birds, and sea otters. Philosophers originally thought that only humans had the ability to make tools, until zoologists observed birds^[8] and monkeys^[9][10][11] making tools. Now the unique relationship of humans with tools is considered to be that we are the only species that uses tools to make other tools.^[12]

See also[link]

• Device paradigm
• List of tool-lending libraries
• Toolbank
• Toolmaker

References[link]

Look up tool in Wiktionary, the free dictionary.

Wikimedia Commons has media related to: Tools

This article is an orphan, as few or no other articles link to it. Please introduce links to this page from related articles; suggestions may be available. (December 2008)

Chris Grundy (September 24, 1967) is the host of the American television show Cool Tools, which runs on the DIY Network. The program introduces new tools and centers on Chris Grundy's humorous presentation style.

While he currently works as a television host, Grundy has also made notable appearances as a character actor on shows such as "Andy Barker, P.I." and "Help Me Help You". Grundy started his career as a performer in improv comedy groups in the Denver, Colorado area such as Chicken Lips, Impulse Theater, and Rattlebrain Theater. He later moved on to perform with The Second City.

References[link]

• http://www.imdb.com/name/nm1554676/
• http://www.diynetwork.com/chris-grundy-bio/bio/index.html

Joe Penna (born May 29, 1987 in São Paulo), known online as MysteryGuitarMan, is a Brazilian guitarist, animator, and filmmaker. He currently resides in Los Angeles, California.

YouTube[link]

Penna maintains a popular channel on YouTube by the name of MysteryGuitarMan. He usually uploads videos every Thursday.

In January 2011, he was the most subscribed in Brazil.^[4] As of May 2012 his channel has over 2.1 million subscribers, and his videos have been viewed over 315 million times.^[5]

On February 18, 2010, Penna started a second YouTube channel, jp, where he uploads his making-of videos and vlogs. Within 6 hours, it became the third most subscribed channel in Brazil.^[1]

Press[link]

In 2007, Penna received media coverage, including attention from DC Fox News,^[6] after his "The Puzzle" video was featured on the front page of YouTube.

In 2009, Penna was again seen on the front page of YouTube with his "Guitar: Impossible" video, which has been covered by De Wereld Draait Door, the highest-rated primetime show in the Netherlands.^[7] On December 6, 2009, Penna was featured on FM4, an Austrian national radio station.^[8] Shortly after uploaded, his "Guitar:Impossible" video was featured on the MSN.com front page.

Best Buy announced Penna as the $15,000 winner of their Tech-U-Out Video Challenge. He was also a finalist in the "Oreo Global Moments" video competition. Ford selected Penna as a Fiesta Agent for the 2009 Ford Fiesta Movement.^[9] Penna's "Guitar: Impossible" video was also featured by YouTube as one of the best videos of 2009.

In 2010, Penna's "Root Beer Mozart" was featured on CNN's morning show Morning Express with Robin Meade and on Germany's nationally broadcasted Taff show. Penna's collaboration with YouTubers Rhett and Link and Billy Reid for "T-Shirt War" garnered national attention.^[10] Following the success of the original, Penna and the original cast were hired to produce a national television and cinema spot for Coca-Cola and McDonalds.^[11]

Penna was recently highlighted by CNN Money on their Best Jobs series.^[12] On June 24, Penna was selected as one of the top 10 new directors of 2010 at the 20th Cannes Lions Saatchi & Saatchi New Directors' Showcase with "T-Shirt War".^[13] "Guitar: Impossible" was selected for the YouTube Play Shortlist, which is a collaboration between YouTube and the Guggenheim Museum.^[14][15]

References[link]

External links[link]

• MysteryGuitarMan YouTube Home Page
• MysteryGuitarMan's Second Channel
• Joe Penna's Website
• MysteryGuitarMan's Website