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Ralf Hotchkiss
Ralf Hotchkiss is an inventor and designer whose company, Whirlwind Wheelchair International, designs wheelchairs for use and manufacture in developing countries, involving wheelchair riders in all of its projects and activities. The organization's mission is "To make it possible for every person in the developing world who needs a wheelchair to obtain one that will lead to maximum personal independence and integration into society." Career Following a motorcycle accident in his junior year at Oberlin University in 1966, Hotchkiss became a paraplegic. Immediately after leaving rehab, Hotchkiss realized how fragile and difficult his wheelchair was to use after hitting a crack in the pavement with the wheelchair, which damaged it to the point of immobility. The crash kickstarted Hotchkiss’ passion for reinventing the wheelchair. Hotchkiss is a 1969 graduate of Oberlin College. Following graduation from Oberlin, he worked for Ralph Nader in Washington D.C. where he founded the Cent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brackets
A bracket is either of two tall fore- or back-facing punctuation marks commonly used to isolate a segment of text or data from its surroundings. Typically deployed in symmetric pairs, an individual bracket may be identified as a 'left' or 'right' bracket or, alternatively, an "opening bracket" or "closing bracket", respectively, depending on the Writing system#Directionality, directionality of the context. Specific forms of the mark include parentheses (also called "rounded brackets"), square brackets, curly brackets (also called 'braces'), and angle brackets (also called 'chevrons'), as well as various less common pairs of symbols. As well as signifying the overall class of punctuation, the word "bracket" is commonly used to refer to a specific form of bracket, which varies from region to region. In most English-speaking countries, an unqualified word "bracket" refers to the parenthesis (round bracket); in the United States, the square bracket. Glossary of mathematical sym ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RoughRider Wheelchair
The RoughRider wheelchair is a low-cost, durable and appropriate technology wheelchair designed for use in developing countries. The design of the RoughRider originally was open-source and has been revised with input from wheelchair users in over 40 countries since 1980. The RoughRider was created to fill the demand for a reliable wheelchair for over 20 million disabled people in the developing world who need a wheelchair and do not have one. History The earliest recorded history of a wheelchair was inscribed in stone on a Chinese Sarcophagus in the 6th century A.D. There have been many variations on the basic design since then but standard features always included rear wheels, front caster wheels, footrests, side frames and seating features. Until recently wheelchairs were designed for relatively smooth surfaces and paved streets and were not designed for rugged environments. Thirty years ago, Ralf Hotchkiss, an engineer with paraplegia and a frequent traveler to developing count ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oberlin College Alumni
Oberlin may refer to: ; Places in the United States * Oberlin Township, Decatur County, Kansas ** Oberlin, Kansas, a city in the township * Oberlin, Louisiana, a town * Oberlin, Ohio, a city * Oberlin, Licking County, Ohio, a ghost town * Oberlin, Pennsylvania, a census-designated place * Mount Oberlin, Glacier National Park, Montana ; Schools * Oberlin University, a private university in Machida, Tokyo, Japan * Oberlin College Oberlin College is a Private university, private Liberal arts colleges in the United States, liberal arts college and conservatory of music in Oberlin, Ohio. It is the oldest Mixed-sex education, coeducational liberal arts college in the United S ..., a liberal arts college in Oberlin, Ohio * Oberlin High School (Louisiana), Oberlin, Louisiana, United States * Oberlin High School (Ohio), Oberlin, Ohio, United States * Oberlin High School, Jamaica ; People * Oberlin (surname) * Oberlin Smith (1840–1926), American engineer {{disambig, geo, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MacArthur Fellows
The MacArthur Fellows Program, also known as the MacArthur Fellowship and commonly but unofficially known as the "Genius Grant", is a prize awarded annually by the John D. and Catherine T. MacArthur Foundation typically to between 20 and 30 individuals, working in any field, who have shown "extraordinary originality and dedication in their creative pursuits and a marked capacity for self-direction" and are citizens or residents of the United States. According to the foundation's website, "the fellowship is not a reward for past accomplishment, but rather an investment in a person's originality, insight, and potential," but it also says such potential is "based on a track record of significant accomplishments." The current prize is $800,000 paid over five years in quarterly installments. Previously it was $625,000. This figure was increased from $500,000 in 2013 with the release of a review of the MacArthur Fellows Program. Since 1981, 1,111 people have been named MacArthur Fello ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PBS NewsHour
''PBS NewsHour'' is an American evening television news program broadcast on over 350 PBS The Public Broadcasting Service (PBS) is an American public broadcaster and non-commercial, free-to-air television network based in Arlington, Virginia. PBS is a publicly funded nonprofit organization and the most prominent provider of educat ... Network affiliate#Member stations, member stations. It airs seven nights a week, and is known for its in-depth coverage of issues and current events. Anchored by Judy Woodruff, the program's weekday broadcasts run for one hour and are produced by WETA-TV in Washington, D.C. From August 5, 2013, to November 11, 2016, Woodruff and then-co-anchor Gwen Ifill were the first and only all-female anchor team on a national nightly news program on American broadcast television. On Saturdays and Sundays, PBS distributes a 30-minute edition of the program, ''PBS News Weekend'', anchored by Geoff Bennett (journalist), Geoff Bennett; originally produced ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Source Hardware
Open-source hardware (OSH) consists of physical artifacts of technology designed and offered by the open-design movement. Both free and open-source software (FOSS) and open-source hardware are created by this open-source culture movement and apply a like concept to a variety of components. It is sometimes, thus, referred to as FOSH (free and open-source hardware). The term usually means that information about the hardware is easily discerned so that others can make it – coupling it closely to the maker movement. Hardware design (i.e. mechanical drawings, schematics, bills of material, PCB layout data, HDL source code and integrated circuit layout data), in addition to the software that drives the hardware, are all released under free/libre terms. The original sharer gains feedback and potentially improvements on the design from the FOSH community. There is now significant evidence that such sharing can drive a high return on investment for the scientific community. It is n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whirlwind Wheelchair International
A whirlwind is a weather phenomenon in which a vortex of wind (a vertically oriented rotating column of air) forms due to instabilities and turbulence created by heating and flow (current) gradients. Whirlwinds occur all over the world and in any season. Types Whirlwinds are subdivided into two main types, the great (or major) whirlwinds, and the lesser (or minor) whirlwinds. The first category includes tornadoes, waterspouts, and landspouts. The range of atmospheric vortices constitute a continuum and are difficult to categorize definitively. Some lesser whirlwinds may sometimes form in a similar manner to greater whirlwinds with related increase in intensity. These intermediate types include the gustnado and the fire whirl. Other lesser whirlwinds include dust devils, as well as steam devils, snow devils, debris devils, leaf devils or hay devils, water devils, and shear eddies such as the mountainado and eddy whirlwinds. Formation A major whirlwind (such as a tor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Design
The open-design movement involves the development of physical products, machines and systems through use of publicly shared design information. This includes the making of both free and open-source software (FOSS) as well as open-source hardware. The process is generally facilitated by the Internet and often performed without monetary compensation. The goals and philosophy of the movement are identical to that of the open-source movement, but are implemented for the development of physical products rather than software. Open design is a form of co-creation, where the final product is designed by the users, rather than an external stakeholder such as a private company. Origin Sharing of manufacturing information can be traced back to the 18th and 19th century. Aggressive patenting put an end to that period of extensive knowledge sharing. More recently, principles of open design have been related to the free and open-source software movements.Vallance, Kiani and Nayfeh, Open ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Appropriate Technology
Appropriate technology is a movement (and its manifestations) encompassing technological choice and application that is small-scale, affordable by locals, decentralized, labor-intensive, energy-efficient, environmentally sustainable, and locally autonomous. It was originally articulated as intermediate technology by the economist Ernst Friedrich "Fritz" Schumacher in his work ''Small Is Beautiful.'' Both Schumacher and many modern-day proponents of appropriate technology also emphasize the technology as people-centered. Appropriate technology has been used to address issues in a wide range of fields. Well-known examples of appropriate technology applications include: bike- and hand-powered water pumps (and other self-powered equipment), the universal nut sheller, self-contained solar lamps and streetlights, and passive solar building designs. Today appropriate technology is often developed using open source principles, which have led to ''open-source appropriate technology'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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