วันจันทร์ที่ 15 กันยายน พ.ศ. 2557

Ice Bucket Challenge

     The Ice Bucket Challenge, sometimes called the ALS Ice Bucket Challenge, is an activity involving dumping a bucket of ice water on one's head to promote awareness of the disease amyotrophic lateral sclerosis (ALS) and encourage donations to research. It went viral throughout social media during mid 2014. In the United Kingdom, people also participate in the challenge for the Motor Neurone Disease Association.
     The challenge dares nominated participants to be filmed having a bucket of ice water poured on their heads and challenging others to do the same. A common stipulation is that nominated people have 24 hours to comply or forfeit by way of a charitable financial donation.

Origin

     The origins of the idea of dumping cold water on one's head to raise money for charity are unclear and have been attributed to multiple sources. From mid 2013 to early 2014, a challenge of unknown origin often called the "Cold Water Challenge" became popular on social media in areas of the Northern United States. The task usually involved the option of either donating money to cancer research or having to jump into cold water.
     One version of the challenge, which took place in New Zealand as early as July 7, 2014, involved dousing participants with cold water and then donating to a charity; for example, the Auckland Division of the Cancer Society. As with similar challenges, it was usually filmed so footage can be shared online.
     The National Fallen Firefighters Foundation popularized the "Cold Water Challenge" in early 2014 to raise funds as an unsanctioned spin-off of the polar plunge most widely used by Special Olympics as a fundraiser. On May 20, 2014 the Washington Township, New Jersey fire department posted a video on YouTube participating in the "Cold Water Challenge" with fire hoses. Participating members of the department were subsequently punished for using fire department equipment without permission.

Shifting focus to ALS

     The challenge first received increased media attention in the United States on June 30, 2014, when personalities of the programMorning Drive, which airs weekdays on Golf Channel, televised the social-media phenomenon, and performed a live, on-air Ice Bucket Challenge. Soon after, the challenge was brought to mainstream audiences when television anchor Matt Lauer did the Ice Bucket Challenge on July 15, 2014 on NBC's The Today Show at Greg Norman's request. On the same day, golferChris Kennedy did the challenge and then challenged his cousin Jeanette Senerchia of Pelham, NY, whose husband, Anthony, has had ALS for 11 years. A day later she did the challenge while her 6-year-old daughter filmed her in front of their house. Senerchia's network on Facebook connected with Pat Quinn, a 31-year-old in Yonkers, NY, who was diagnosed with ALS in March 2013. Quinn called upon his friends and family. Soon, his whole network was posting challenges, including family in Florida, friends in Ireland and Greece, and a bar full of locals, which was broadcast on local television.
     Quinn's Facebook network overlapped with Massachusetts resident and former Boston College baseball player Pete Frates, who has ALS and began posting about the challenge on Twitter. Frates is a well-known patient advocate in the ALS community, having been awarded the Stephen Heywood Patients Today award in 2012 for his fundraising and advocacy work nicknamed the "Frate Train". Frates' Boston College and sporting connections became an initial focus of the challenge and strengthened its focus on ALS.  In the following weeks, many celebrities and notable individuals also took the challenge.
The President of the United States, Barack Obama, was challenged by Ethel Kennedy but declined, opting to contribute to the campaign with a donation of $100. Justin Bieber, LeBron James, and "Weird" Al Yankovic also challenged President Obama after completing the Ice Bucket Challenge. Former president George W. Bush completed the challenge and nominated Bill Clinton.

Rules

     Within 24 hours of being challenged, participants are to video record themselves in continuous footage. First, they are to announce their acceptance of the challenge followed by pouring ice into a bucket of water. The bucket is then to be lifted overhead and poured over the participant's head. Then the participant can call out a challenge to other people.
     Whether people choose to donate, perform the challenge, or do both varies. In one version of the challenge, the participant is expected to donate $10 if they have poured the ice water over their head or donate $100 if they have not. In another version, dumping the ice water over the participant's head is done in lieu of any donation, which has led to some criticisms of the challenge being a form of slacktivism. Many individual videos include the participant saying that they will be making a donation as well as performing the challenge.

Effects

     In mid 2014, the Ice Bucket Challenge went viral on social media and became a pop culture phenomenon, particularly in theUnited States, with numerous celebrities, politicians, athletes, and everyday Americans posting videos of themselves online and on TV participating in the event. According to The New York Times people shared more than 1.2 million videos on Facebookbetween June 1 and August 13 and mentioned the phenomenon more than 2.2 million times on Twitter since July 29. Mashable called the phenomenon "the Harlem Shake of the summer".
     Prior to the widespread internet sensation of the Ice Bucket Challenge, public awareness of the disease amyotrophic lateral sclerosis (ALS) was relatively limited; the ALS Association state that prior to the challenge going viral only half of Americans had heard of the disease, often referred to as "Lou Gehrig's disease", after baseball great Lou Gehrig who publicly revealed his diagnosis.
     After the Ice Bucket Challenge went viral on social media, public awareness and charitable donations to ALS charities soared. On August 21, 2014, The New York Timesreported that the ALS Association had received $41.8 million in donations from July 29 until August 21. More than 739,000 new donors have given money to the association, which is more than double the $19.4 million in total contributions the association received during the year that ended January 31, 2013. Similarly, the ALS Therapy Development Institute reported a ten-fold increase in donations relative to the same period in 2014, with over 2,000 donations made in a single day on August 20th, 2014, while Project ALS reported a 50-fold increase. In the United Kingdom, people have also been facing the challenge for the Motor Neurone Disease Association. The Motor Neurone Disease (MND) Association is the only national charity in England, Wales and Northern Ireland focused on MND care, research and campaigning. MND Scotland provides care and support to everyone affected by Motor Neurone Disease in Scotland.


Criticism

     A number of criticisms have arisen relating to the campaign, accusing it of being self-congratulatory, focusing primarily on fun rather than donating money to charity, and as an example of substituting a trivial activity for more genuine involvement in charitable activities. William MacAskill, Vice-President of Giving What We Can, suggested that the challenge encouraged moral licensing, meaning that some people might use taking part in the challenge as a substitute for other charitable acts. He also proposed that by attracting donations for ALS, the challenge was "cannibalizing" potential donations that otherwise would have gone to other charities instead.
     Steve-O questioned the campaign, suggesting that celebrities' videos generally forgot to share donation information for ALS charities, and that the initial $15 million dollars in funds was insignificant, given the star power of the celebrities participating. He noted that, of the videos he viewed, only Charlie Sheen and Bill Gates noted that the point is to donate money.
     Pamela Anderson refused to take part in the challenge because the use of animal experimentation in ALS research. Members of the pro-life movement criticised the campaign because of the connection between embryonic stem cell research and ALS research.
     On August 22, 2014, Brian O'Neill, a physician at the Detroit Medical Center, warned that the challenge may have adverse health effects on participants, including potentially inducing a vagal response which might, for example, lead to unconsciousness in people taking blood pressure medications.
Criticism also targeted the waste of water.

Other charities

     This challenge has inspired other charities to get involved, including Macmillan Cancer Support, who are calling it the Macmillan Ice Bucket Challenge.

Pen

     A pen (Latin: penna, feather) is a writing implement used to apply ink to a surface, usually paper, for writing or drawing. Historically, reed pens, quill pens, and dip penswere used, with a nib dipped in ink. Ruling pens allow precise adjustment of line width, and still find a few specialized uses, but technical pens such as the Rapidograph are more commonly used. Modern types also include ballpoint, rollerball, fountain, and feltor ceramic tip pens.

Types of pens

Modern


     A ballpoint pen dispenses ink by rolling a small hard sphere, usually 0.7–1.2 mm and made of brass, steel or tungsten carbide. The ink dries almost immediately on contact with paper. The ballpoint pen is usually reliable and inexpensive. It has replaced the fountain pen as the most common tool for everyday writing.The main modern types of pens can be categorized by the kind of writing tip or point:
  • A fountain pen uses water-based liquid ink delivered through a nib. The ink flows from a reservoir through a "feed" to the nib, then through the nib, due to capillary action and gravity. The nib has no moving parts and delivers ink through a thin slit to the writing surface. A fountain pen reservoir can be refillable or disposable, this disposable type being an ink cartridge. A pen with a refillable reservoir may have a mechanism, such as a piston, to draw ink from a bottle through the nib, or it may require refilling with an eyedropper. Refill reservoirs, also known as cartridge converters, are available for some pens which use disposable cartridges.

  • Historic
       A marker, or felt-tip pen, has a porous tip of fibrous material. The smallest, finest-tipped markers are used for writing on paper. Medium-tip markers are often used by children for coloring and drawing. Larger markers are used for writing on other surfaces such as corrugated boxes, whiteboards and for chalkboards, often called "liquid chalk" or "chalkboard markers." Markers with wide tips and bright but transparent ink, called highlighters, are used to mark existing text. Markers designed for children or for temporary writing (as with a whiteboard or overhead projector) typically use non-permanent inks. Large markers used to label shipping cases or other packages are usually permanent markers.
  • A rollerball pen dispenses a water-based liquid or gel ink through a ball tip similar to that of a ballpoint pen. The less-viscous ink is more easily absorbed by paper than oil-based ink, and the pen moves more easily across a writing surface. The rollerball pen was initially designed to combine the convenience of a ballpoint pen with the smooth "wet ink" effect of a fountain pen. Gel inks are available in a range of colors, including metallic paint colors, glitter effects, neon, blurredeffects, saturated colors, pastel tones, vibrant shades, shady colors, invisible ink, see-through effect, shiny colors, and glow-in-the-dark effects.
     These historic types of pens are no longer in common use as writing instruments, but may be used by calligraphers and other artists:
  • A dip pen (or nib pen) consists of a metal nib with capillary channels, like that of a fountain pen, mounted on a handle or holder, often made of wood. A dip pen usually has no ink reservoir and must be repeatedly recharged with ink whiledrawing or writing. The dip pen has certain advantages over a fountain pen. It can use waterproof pigmented (particle-and-binder-based) inks, such as so-called India ink, drawing ink, or acrylic inks, which would destroy a fountain pen by clogging, as well as the traditional iron gall ink, which can cause corrosion in a fountain pen. Dip pens are now mainly used in illustration, calligraphy, and comics. A particularly fine-pointed type of dip pen known as a crowquill is a favorite instrument of artists, such as David Stone Martin and Jay Lynch, because its flexible metal point can create a variety of delicate lines, textures and tones with slight pressures while drawing.
  • The ink brush is the traditional writing implement in East Asian calligraphy. The body of the brush can be made from either bamboo, or rarer materials such as red sandalwood, glass, ivory, silver, and gold. The head of the brush can be made from the hair (or feathers) of a wide variety of animals, including the weasel, rabbit, deer, chicken, duck, goat, pig, tiger, etc. There is also a tradition in both China and Japan of making a brush using the hair of a newborn, as a once-in-a-lifetime souvenir for the child. This practice is associated with the legend of an ancient Chinese scholar who scored first in the Imperial examinations by using such a personalized brush. Calligraphy brushes are widely considered an extension of the calligrapher's arm. Today, calligraphy may also be done using a pen, but pen calligraphy does not enjoy the same prestige as traditional brush calligraphy.
  • A quill is a pen made from a flight feather of a large bird, most often a goose. Quills were used as instruments for writing with ink before the metal dip pen, the fountain pen, and eventually the ballpoint pen came into use. Quill pens were used in medieval times to write on parchment or paper. The quill eventually replaced the reed pen.
  • A reed pen is cut from a reed or bamboo, with a slit in a narrow tip. Its mechanism is essentially similar to that of a quill. The reed pen has almost disappeared but it is still used by young school students in some parts of India and Pakistan, who learn to write with them on small timber boards known as "Takhti".

History


     The quill pen was used in Qumran, Judea to write some of the Dead Sea Scrolls, which date back to around 100 BC. The scrolls were written in Hebrew dialects with bird feathers or quills. After the fall of the Roman Empire, Europeans had difficulty in obtaining reeds and began to use quills. There is a specific reference to quills in the writings of St. Isidore of Seville in the 7th century. Quill pens were still widely used in the 18th century, and were used to write and sign the Constitution of the United States in 1787. Quill pens were replaced some 2000 years later by the Greeks with the reed pen, made by cutting the end of the reed at an angle and making a slit opposite the cut. This proved to be nib-like and more suitable for writing the newly developed Greek alphabet. The reed pen survived until papyrus was replaced by animal skins, vellum and parchment, as a writing surface. The smoother surface of skin allowed finer, smaller writing by the quill pen, derived from the flight feather.Ancient Egyptians had developed writing on papyrus scrolls when scribes used thin reed brushes or reed pens from the Juncus maritimus or sea rush. In his book A History of          Writing, Steven Roger Fischer suggests that on the basis of finds atSaqqara, the reed pen might well have been used for writing on parchment as long ago as the First Dynasty or about 3000 BC. Reed pens continued to be used until theMiddle Ages although they were slowly replaced by quills from about the 7th century. The reed pen, generally made from bamboo, is still used in some parts of Pakistan by young students and is used to write on small boards made of timber.
     A copper nib was found in the ruins of Pompei showing that metal nibs were used in the year 79. There is also a reference to 'a silver pen to carry ink in', in Samuel Pepys' diary for August 1663. 'New invented' metal pens are advertised in The Times in 1792. A metal pen point was patented in 1803 but the patent was not commercially exploited. A patent for the manufacture of metal pens was advertised for sale by Bryan Donkin in 1811. John Mitchell of Birmingham started to mass-produce pens with metal nibs in 1822, and thereafter the quality of steel nibs had improved enough that dip pens with metal nibs came into generalized use.
     The earliest historical record of a pen employing a reservoir dates back to the 10th century. In 953, Ma'ād al-Mu'izz, theFatimid Caliph of Egypt, demanded a pen which would not stain his hands or clothes, and was provided with a pen which held ink in a reservoir and delivered it to the nib. This pen may have been a fountain pen, but its mechanism remains unknown, and only one record mentioning it has been found. A later reservoir pen was developed in 1636. In his Deliciae Physico-Mathematicae (1636), German inventor Daniel Schwenter described a pen made from two quills. One quill served as a reservoir for ink inside the other quill. The ink was sealed inside the quill with cork. Ink was squeezed through a small hole to the writing point. In 1809, Bartholomew Folsch received a patent in England for a pen with an ink reservoir.
     While a student in Paris, Romanian Petrache Poenaru invented the fountain pen, which the French Government patented in May 1827. Fountain pen patents and production then increased in the 1850s, especially steel pens produced by John Mitchell.
     The first patent on a ballpoint pen was issued on October 30, 1888, to John J Loud. In 1938, László Bíró, a Hungarian newspaper editor, with the help of his brother George, a chemist, began to work on designing new types of pens including one with a tiny ball in its tip that was free to turn in a socket. As the pen moved along the paper, the ball rotated, picking up ink from the ink cartridge and leaving it on the paper. Bíró filed a British patent on June 15, 1938. In 1940 the Bíró brothers and a friend, Juan Jorge Meyne, moved toArgentina fleeing Nazi Germany and on June 10, filed another patent, and formed Bíró Pens of Argentina. By the summer of 1943 the first commercial models were available.  Erasable ballpoint pens were introduced by Papermate in 1979 when the Erasermate was put on the market.

     In the 1960s, the fibre or felt-tipped pen was invented by Yukio Horie of the Tokyo Stationery Company, Japan. Papermate's Flair was among the first felt-tip pens to hit the U.S. market in the 1960s, and it has been the leader ever since. Marker pens and highlighters, both similar to felt pens have become popular in recent times.Slavoljub Eduard Penkala, a naturalized Croatian engineer and inventor of Polish-Dutch origin from the Kingdom of Croatia-Slavonia in Austria-Hungary, became renowned for further development of the mechanical pencil (1906) – then called an "automatic pencil" – and the first solid-ink fountain pen (1907). Collaborating with an entrepreneur by the name of Edmund Moster, he started the Penkala-Moster Company and built a pen-and-pencil factory that was one of the biggest in the world at the time. This company, now called TOZ-Penkala, still exists today. "TOZ" stands for "Tvornica olovaka Zagreb", meaning "Zagreb Pencil Factory".
     Rollerball pens were introduced in the early 1970s. They make use of a mobile ball and liquid ink to produce a smoother line. Technological advances achieved during the late 1980s and early 1990s have improved the roller ball's overall performance. A porous point pen contains a point that is made of some porous material such as felt or ceramic. A high quality drafting pen will usually have a ceramic tip, since this wears well and does not broaden when pressure is applied while writing.
     Although the invention of the typewriter and personal computer with the keyboard input method have changed how users write, the pen has not been entirely replaced. Higher end pens including types such as fountain pens are still a status symbol.

Pencil

     A pencil /ˈpɛnsəl/ is a writing implement or art medium usually constructed of a narrow, solid pigment core inside a protective casing which prevents the core from being broken or leaving marks on the user’s hand during use.
     Pencils create marks by physical abrasion, leaving behind a trail of solid core material that adheres to a sheet of paper or other surface. They are distinct from pens, which instead disperse a trail of liquid or gel ink that stains the light colour of the paper.
     Most pencil cores are made of graphite mixed with a clay binder which leaves grey or black marks that can be easily erased. Graphite pencils are used for both writing anddrawing and result in durable markings: though writing is easily removable with an eraser, it is otherwise resistant to moisture, most chemicals, ultraviolet radiation, and natural aging. Other types of pencil core are less widely used, such as charcoal pencils, which are mainly used by artists for drawing and sketching. Coloured pencilsare sometimes used by teachers or editors to correct submitted texts, but are typically regarded as art supplies, especially those with waxy core binders that tend to smear on paper instead of erasing. Grease pencils have a softer, crayon-like waxy core that can leave marks on smooth surfaces such as glass or porcelain.
     The most common type of pencil casing is of thin wood, usually hexagonal in section but sometimes cylindrical, permanently bonded to the core. Similar permanent casings may be constructed of other materials such as plastic or paper. To use the pencil, the casing must be carved or peeled off to expose the working end of the core as a sharp point. Mechanical pencils have more elaborate casings which support mobile pieces of pigment core that can be extended or retracted through the casing tip as needed.