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

Bear Grylls
Born	Edward Michael Grylls (1974-06-07) 7 June 1974 (age 38) United Kingdom
Residence	A barge moored by Battersea Bridge on the River Thames, England[1] An island on Llŷn Peninsula, Abersoch, North Wales[2]
Occupation	Chief Scout Adventurer Explorer Author Motivational speaker[3] Television presenter
Spouse	Shara Cannings Knight[4]
Children	Jesse, Marmaduke,[5] and Huckleberry[6]
Parents	Sir Michael Grylls Lady Grylls (née Sarah Ford)
Website
BearGrylls.com

Edward Michael "Bear" Grylls (born 7 June 1974) is an English adventurer, writer and television presenter. He is best known for his television series Man vs. Wild, known as Born Survivor^[7] in the United Kingdom. In July 2009, Grylls was appointed the youngest ever Chief Scout at the age of 35.

Personal life[link]

Grylls grew up in Donaghadee, Northern Ireland until the age of 4 when his family moved to Bembridge on the Isle of Wight.^[8][9] He is the son of the late Conservative party politician Sir Michael Grylls and Lady Sarah Grylls.^[10] Lady Grylls was the daughter of Patricia Ford,^[11] briefly an Ulster Unionist Party MP, and cricketer and businessman Neville Ford. Grylls has one sibling, an elder sister, Lara Fawcett, a cardio-tennis coach, who gave him the nickname 'Bear' when he was a week old.^[12]

Grylls was educated at Eaton House, Ludgrove School, Eton College, where he helped start its first mountaineering club,^[13] and Birkbeck, University of London,^[14] where he graduated with a degree, obtained part-time, in Hispanic studies in 2002. From an early age, he learned to climb and sail from his father, who was a member of the prestigious Royal Yacht Squadron. As a teenager, he learned to skydive and earned a second dan black belt in Shotokan karate. He practices yoga and ninjutsu. At age eight he became a Cub Scout.^[15] He speaks English, Spanish, and French.^[16] Grylls is a Christian, describing his faith as the "backbone" in his life.^[17]

Although Grylls was christened 'Edward' he has legally changed his forename to 'Bear'.^[18] Grylls married Shara Grylls (née Cannings Knight) in 2000.^[4][11] They have three sons: Jesse, Marmaduke,^[19] and Huckleberry.^[6]

Military service[link]

After leaving school, Grylls considered joining the Indian Army and hiked in the Himalayan mountains of Sikkim.^[20] Grylls joined the British Army and served in the part-time United Kingdom Special Forces Reserve, with 21 Regiment Special Air Service, 21 SAS(R) for 3 years until 1996.

In 1996, he suffered a freefall parachuting accident in Zambia. His canopy ripped at 4,900 metres (16,000 ft), partially opening, causing him to fall and land on his parachute pack on his back, which partially crushed three vertebrae. Grylls later said: "I should have cut the main parachute and gone to the reserve but thought there was time to resolve the problem".^[21] According to his surgeon, Grylls came "within a whisker" of being paralysed for life and at first it was questionable whether he would ever walk again. Grylls spent the next 12 months in and out of military rehabilitation at Headley Court^[21] before being discharged and directing his efforts into trying to get well enough to fulfil his childhood dream of climbing Mount Everest.

In 2004, Grylls was awarded the honorary rank of Lieutenant Commander in the Royal Naval Reserve for services to charity and human endeavour.^[22]

Everest[link]

On 16 May 1998, Grylls achieved his childhood dream (an ambition since his father gave him a picture of Everest when he was eight) and entered the Guinness Book of Records, as the youngest Briton, at 23, to summit Mount Everest^[23], just eighteen months after injuring his back. (James Allen, an Australian-British climber who ascended Everest in 1995 with an Australian team, but who has dual citizenship, reached the summit at age 22.^[24][25] The feat has since been surpassed by Jake Meyer and, at age 19, by Rob Gauntlett.)

Other expeditions[link]

Circumnavigation of the UK[link]

In 2000, Grylls, led the first team to circumnavigate the UK on a personal watercraft or jet ski, taking about 30 days, to raise money for the Royal National Lifeboat Institution (RNLI). He also rowed naked for 22 miles in a homemade bathtub along the Thames to raise funds for a friend who lost his legs in a climbing accident.^[26]

Crossing the North Atlantic[link]

Three years later, he led a team of five, including his childhood friend, SAS colleague, and Mount Everest climbing partner Mick Crosthwaite, on the first unassisted crossing of the north Atlantic Arctic Ocean, in an open rigid inflatable boat^[27]. Suffering weeks of frozen spray and icebergs, battling force 8 gale winds, hypothermia, and storms in an eleven-metre-long boat through some of the most treacherous stretches of water in the world including the Labrador Sea, the Denmark Strait, and the stretch made famous by The Perfect Storm, Grylls and his team were just barely able to finish the journey from Halifax, Nova Scotia to John o' Groats, Scotland.

Paramotoring over Angel Falls[link]

In 2005, Grylls led the first team ever to attempt to paramotor over the remote jungle plateau of the Angel Falls in Venezuela, the world's highest waterfall. The team was attempting to reach the highest, most remote tepuis.

Dinner party at altitude[link]

In 2005, alongside the balloonist and mountaineer David Hempleman-Adams and Lieutenant Commander Alan Veal, leader of the Royal Navy Freefall Parachute Display Team, Grylls created a world record for the highest open-air formal dinner party, which they did under a hot-air balloon at 7,600 metres (25,000 ft), dressed in full mess dress and oxygen masks. To train for the event, he made over 200 parachute jumps. This was in aid of The Duke of Edinburgh's Award and The Prince's Trust.

Paramotoring over the Himalayas[link]

In 2007, Grylls claimed to have broken a new world record by flying a Parajet paramotor over the Himalayas, higher than Mount Everest.^[28] Grylls took off from 4,400 metres (14,500 ft), 8 miles south of the mountain. Grylls reported looking down on the summit during his ascent and coping with temperatures of −60 °C (−76 °F). He endured dangerously low oxygen levels and eventually reached 9,000 metres (29,500 ft), almost 3,000 metres (10,000 ft) higher than the previous record of 6,102 metres (20,019 ft). The feat was filmed for Discovery Channel worldwide as well as Channel 4 in the UK.^[29]

While Grylls initially planned to cross over Everest itself, the permit was only to fly to the south of Everest, and he did not traverse Everest out of risk of violating Chinese airspace.^[30]

Journey Antarctica 2008[link]

In 2008, Bear lead a team of four to climb one of the most remote unclimbed peaks in the world in Antarctica. This was raising funds for Global Angels kids charity and awareness for the potential of alternative energies. During this mission the team also aimed to explore the coast of Antarctica by inflatable boat and jetski, part powered by bioethanol, and then to travel across some of the vast ice desert by wind-powered kite-ski and electric powered paramotor. However, the expedition was cut short after Grylls suffered a broken shoulder while kite skiing across a stretch of ice. Travelling at speeds up to 50 km/h (30 mph), a ski caught on the ice, launching him in the air and breaking his shoulder when he came down. He had to be medically evacuated.^[31]

Longest indoor freefall[link]

Grylls, along with the double amputee Al Hodgson and the Scotsman Freddy MacDonald, set a Guinness world record in 2008 for the longest continuous indoor freefall.^[32] The previous record was 1 hr 36 mins by a US team. Grylls, Hodgson, and MacDonald, using a vertical wind tunnel in Milton Keynes, broke the record by a few seconds. The attempt was in support of the charity Global Angels.

Northwest Passage expedition[link]

In August 2010 Grylls lead a team of five to take an ice-breaking rigid-inflatable boat (RIB) through 2,500 miles (4,000 km) of the ice strewn Northwest Passage. The expedition intended to raise awareness of the effects of global warming and to raise money for children's charity Global Angels.^[33]

Media[link]

Grylls entered television work with an appearance in an advertisement for Sure deodorant, featuring his ascent of Mount Everest. Bear was also used by the UK Ministry of Defence to head the Army's anti-drugs TV campaign, and featured in the first ever major advertising campaign for the world-renowned department store Harrods. Grylls has been a guest on television programs, including Friday Night with Jonathan Ross, The Oprah Winfrey Show, Late Night with Conan O'Brien, The Tonight Show with Jay Leno, Attack of the Show, The Late Show with David Letterman, Jimmy Kimmel Live! and Harry Hill's TV Burp. Grylls recorded two advertisements for Post's Trail Mix Crunch Cereal, which aired in the US from January 2009. He also appeared as a distinguished instructor in Dos Equis' Most Interesting Academy in a webisode named "Survival in the Modern Era". He appeared in a five-part web series that demonstrates urban survival techniques and features Grylls going from bush to bash. He also has marketed the Alpha Course, a course on the basics of the Christian faith. Warner Bros. had asked Grylls to appear in its remake of the film Clash of the Titans^[34]

Grylls is a best-selling author. Grylls' first book, titled Facing Up, went into the UK top 10 best-seller list, and was launched in the USA entitled The Kid Who Climbed Everest. About his expedition and achievements climbing to the summit of Mount Everest. Grylls' second book Facing the Frozen Ocean was shortlisted for the William Hill Sports Book of the Year Award 2004. His third book was written to accompany the series Born Survivor: Bear Grylls. (Released in America in April 2008 to the Man vs. Wild Discovery television show) It features survival skills learned from some of the world's most hostile places. This book reached the Sunday Times Top 10 best-seller list. He also wrote an extreme guide to outdoor pursuits, titled Bear Grylls Outdoor Adventures. In 2011 Bear released his autobiography Mud, Sweat and Tears. and it is still currently the best-selling book in Australia and the United Kingdom.^{[citation needed]}

He has a series of children's adventure survival books titled: Mission Survival: Gold of the Gods, Mission Survival: Way of the Wolf, Mission Survival: Sands of the Scorpion and Mission Survival: Tracks of the Tiger.

[edit] Escape to the Legion

Grylls filmed a four-part TV show in 2005, called Escape to the Legion, which followed Grylls and eleven other "recruits" as they took part in a shortened re-creation of the French Foreign Legion's basic desert training in the Sahara. The show was broadcast in the UK on Channel 4,^[35] and in the USA on the Military Channel.^[36] In 2008, it was repeated in the UK on the History Channel.^[37]

[edit] Born Survivor / Man vs. Wild

Grylls hosts a series titled Born Survivor: Bear Grylls for the British Channel 4 and broadcast as Man vs. Wild in Australia, New Zealand, Canada and the U.S.A., and as Ultimate Survival on the Discovery Channel in Europe, Asia, and Africa. The series features Grylls dropped into inhospitable places, showing viewers how to survive. Man vs. Wild debuted in 2006 and went on to become the number one cable show in all of America and now reaches a global audience of over 1.2 billion viewers.^[19] The second season premièred in the US on 15 June 2007, the third in November 2007, and the fourth in May 2008.

The show has featured stunts including Grylls climbing cliffs, parachuting from helicopters, balloons, and planes, paragliding, ice climbing, running through a forest fire, wading rapids, eating snakes, wrapping his urine-soaked t-shirt around his head to help stave off the desert heat, drinking urine saved in a rattlesnake skin, drinking fecal liquid from elephant dung, eating deer droppings, wrestling alligators, field dressing a camel carcass and drinking water from it, eating various "creepy crawlies" [insects], utilising the corpse of a sheep as a sleeping bag and flotation device, free climbing waterfalls and using a bird guano/water enema for hydration.^[38][39] Grylls also regales the viewer with tales of adventurers stranded or killed in the wilderness.

In some early episodes, Man vs. Wild / Born Survivor was criticised by some sources for misleading viewers about some of the situations in which Grylls finds himself. Discovery and Channel 4 television subsequently pledged production and editing transparency and clarification related to the criticism.

In March 2012, Discovery Channel terminated its productions with Grylls due to contract disputes.^[40]

[edit] Worst Case Scenario

Grylls' latest project is titled Worst Case Scenario and airs on Discovery in the USA. It is based on the popular books of the same name.^[41]

Chief Scout[link]

On 17 May 2009, The Scout Association announced Grylls would be appointed Chief Scout following the end of Peter Duncan's five year term in July 2009.^[42] He was officially made Chief Scout at Gilwell 24 on 11 July 2009 in a handover event featuring Peter Duncan in front of a crowd of over 3,000 Explorer Scouts. He is the tenth person to hold the position and the youngest Chief Scout since the role was created for Robert Baden-Powell in 1920.^[43][44]

Charities[link]

Many of Grylls' expeditions and stunts have raised money for charitable organisations.^{[citation needed]} Grylls is an ambassador for The Prince's Trust, an organisation which provides training, financial, and practical support to young people in the United Kingdom.^[19] He is also vice president for The JoLt Trust, a small charity that takes disabled, disadvantaged, abused or neglected young people on challenging month-long expeditions.

Global Angels, a UK charity which seeks to aid children around the world, were the beneficiaries of his 2007 accomplishment of taking a powered para-glider higher than Mount Everest. Grylls's held the highest ever dinner party at 7,600 metres (25,000 ft) in aid of The Duke of Edinburgh's Award Scheme, and launched the 50th anniversary of the Awards. His successfully circumnavigating Britain on jet skis raised money for the Royal National Lifeboat Institution. Grylls' Everest climb was in aid of SSAFA Forces Help, a British-based charitable organisation set up to help former, and serving members of the British Armed Forces, and their families and dependents. His 2003 Arctic expedition detailed in the book Facing the Frozen Ocean was in aid of The Prince's Trust. His 2005 attempt to para-motor over the Angel Falls was in aid of the charity Hope and Homes for Children.^[45] In August 2010, Grylls continued his fund-raising work for Global Angels by undertaking an expedition through the Northwest Passage in a rigid inflatable boat. Many of his expeditions also support environmental causes such as his Antarctica expedition and his circumnavigation of Britain which tested a pioneering new fuel made from rubbish.

In 2011, Grylls was in New Zealand during the February 2011 Christchurch earthquake. Following the incident, he appeared on New Zealand advertisements encouraging people to donate money to help rebuild the city.

Other work[link]

Outside of TV, Grylls works as a motivational speaker, giving speeches worldwide to corporations, churches, schools, and other organisations.^[46] He is also a spokesperson for and owner of a Juice Plus franchise. Grylls has his own outdoor survival clothing range produced by British manufacturer Craghoppers as well as a knife manufactured by Gerber.

See also[link]

• Ranulph Fiennes, British adventurer and a hero of Grylls' growing up^[47]
• Bruce Parry, British adventurer and TV presenter
• Les Hiddins, Australian survival expert and TV presenter
• Les Stroud, Canadian survival expert and TV presenter
• Ray Mears, English survival expert and TV presenter

References[link]

External links[link]

Wikimedia Commons has media related to: Bear Grylls

• BearGrylls.com official website
• Bear Grylls on Twitter
• ScoutBase.org (UK) "Meet the Chiefs"