วันศุกร์ที่ 23 มีนาคม พ.ศ. 2555

ตำนานรอยพระพุทธบาทเขาคิชฌกูฎ


ตำนานรอยพระพุทธบาทเขาคิชฌกูฎ (พลวง) นายติ่งและคณะได้ขึ้นบนเขาเพื่อไปหาไม้กฤษณามาขาย ได้ไปพักเหนื่อยบนลานหินกว้าง เพื่อนของนายติ่งคนหนึ่ง ได้ถอนหญ้าเพื่อนอนพักก็พบแหวนใหญ่ขนาดสวมหัวแม่เท้าได้ เเละเมื่อช่วยกันตรวจดูก็พบหินแผ่นหนึ่ง มีพื้นที่เป็นรอยรูปก้นหอย ต่อมานายติ่งและเพื่อนได้นำบุตรชายไปอุปสมบทที่วัดพลับ รุ่งขึ้นก็มีงานปิดรอยพระพุทธบาทจำลอง นายติ่งซื้อทองไปปิดแล้วจึงพูดว่าแถวบ้านตนก็มีรอยแบบนี้เช่นเดียวกัน พอดีมีพระได้ยินเข้าจึงไปเรียนให้เจ้าอาวาสวัดรับทราบ จึงเรียกนายติ่งเข้าไปสอบถามและส่งคณะขึ้นไปพิสูจน์ดู ก็เป็นความจริงและตรวจดูรอบๆบริเวณนั้น ก็พบสิ่งประหลาดมหัศจรรย์หลายอย่าง รอยพระพุทธบาทนั้นท่านทรงเหยียบจารึกไว้ที่ศิลาแผ่นใหญ่ บรรจุคนนั่งได้ร้อยกว่าคน บนยอดเขาสูงสุด กว้าง 1 เมตร ยาว 2 เมตร ทางด้านทิศตะวันออกเฉียงใต้ของรอยพระพุทธบาทมีหินกลมก้อนหนึ่งใหญ่มาก เรียกว่าหินลูกพระบาท ตั้งขึ้นมาอย่างน่าแปลกประหลาดมหัศจรรย์ มองดูคล้ายลอยอยู่เฉยๆ มีคนกล่าวว่าเขาเคยเอาด้ายสายสิญจน์คล้องแล้วหลุดออกมาได้ และยังมีหินอีกลูกอยู่ตรงข้ามกับหินลูกพระบาทนี้ ก็มีรอยพระหัตถ์ไปรับหินก้อนนี้จากรอยพระพุทธบาทกับรอยพระหัตถ์นั้น ห่างกันประมาณ 5 เมตร และยิ่งแปลกไปกว่านั้น ในก้อนหินนั้นตรงกันข้ามกับรอยพระหัตถ์ ยังมีรูปรอยเท้าใหญ่ ซึ่งเรียกกันว่ารอยเท้าพญามาร เพียงแหงนหน้าขึ้นไปจะมองเห็นได้ทันที สูงประมาณ 15 เมตร ต่อจากนั้นไปทางทิศตะวันตกเฉียงเหนือห่างจากหินลูกนี้ไปเพียง 15 วา มีหินลูกข้างบนเป็นลานและมองเห็นรอยรถหรือรอยเกวียน เมื่อยืนบนหินลูกนั้นมองลงไปทางทิศเหนือจะเห็นถ้ำเต่า หันไปทางทิศตะวันออกเฉียงเหนือของรอยพระพุทธบาทจะเห็นถ้ำช้าง และถ้ามองจากรอยพระพุทธบาทขึ้นไปจะเห็นหินก้อนหนึ่งมีรูปลักษณะคล้ายช้าง จริง เลยจากช้างไปสูงสุดนั้นเรียกกันว่าห้างฝรั่ง เพราะฝรั่งได้ขึ้นไปตั้งห้างส่องกล้องเพื่อทำแผนที่ มองไปทางทิศตะวันออกเฉียงใต้ยังมีถ้ำอีกถ้ำหนึ่งเรียกว่าถ้ำสำเภา เพราะมีหินก้อนหนึ่งข้างบนถ้ำมีลักษณะคล้ายๆเรือสำเภา และยังมีอีกถ้ำหนึ่งใต้พระบาทนี้เรียกว่าถ้ำตาฤาษี


ที่มาของชื่อเขาคิชฌกูฏนั้น ในตำนานศาสนาพุทธกล่าวไว้ว่า เขาคิชฌกูฎอยู่ทางทิศตะวันออกเฉียงใต้ของกรุงราชคฤห์ แปลว่าภูเขาแร้งกระพือปีก มีคันธกุฎีอยู่บนยอดเขา และเคยเป็นสถานที่ประทับของพระพุทธเจ้าในอดีต เป็นความดำริของพระครูธรรมสรคุณซึ่งเป็นกรรมการและเป็นหลักในการพัฒนาพระบาท พลวงตั้งแต่ พ.ศ. 2515 ได้เสนอใช้ชื่อ พระบาทเขาคิชฌกูฎ (พลวง) เหตุผลเพราะเมืองไทยเป็นเมืองพุทธที่พุทธศาสนาเจริญกว่าเมืองไหนๆ แม้กระทั่งประเทศอินเดีย จึงน่าจะใช้ชื่อนี้เป็นที่ระลึกถึงพระบรมศาสดา ในทุกๆ ปีจะมีพิธีเปิดและพิธีปิดการขึ้นไปนมัสการรอยพระพุทธบาทเป็นประจำทุกปี

Songkran festival

songkran featival

The Songkran festival (Thai: , Khmer:; from the Sanskrit word saṃkrānti,[1] or literally "astrological passage") is celebrated in Thailand as the traditional New Year's Day from 13 to 15 April. It coincides with the New Year of many calendars of South and Southeast Asia.

The date of the festival was originally set by astrological calculation, but it is now fixed. If these days fall on a weekend, the missed days off are taken on the weekdays immediately following. If they fall in the middle of the week, many Thai take off from the previous Friday until the following Monday. Songkran falls in the hottest time of the year in Thailand, at the end of the dry season. Until 1888 the Thai New Year was the beginning of the year in Thailand; thereafter 1 April was used until 1940. 1 January is now the beginning of the year. The traditional Thai New Year has been a national holiday since then.

Songkran has traditionally been celebrated as the New Year for many centuries, and is believed to have been adapted from an Indian festival. It is now observed nationwide, even in the far south. However, the most famous Songkran celebrations are still in the northern city of Chiang Mai, where it continues for six days and even longer. It has also become a party for foreigners and an additional reason for many to visit Thailand for immersion in another culture.


New year traditions
The most obvious celebration of Songkran is the throwing of water. Thais roam the streets with containers of water or water guns (sometimes mixed with mentholated talc), or post themselves at the side of roads with a garden hose and drench each other and passersby. This, however, was not always the main activity of this festival. Songkran was traditionally a time to visit and pay respects to elders, including family members, friends, neighbors, and monks.

Besides the throwing of water, people celebrating Songkran as a Buddhist festival may also go to a wat (Buddhist monastery) to pray and give food to monks. They may also cleanse Buddha images from household shrines as well as Buddha images at monasteries by gently pouring water mixed with a Thai fragrance (Thai: น้ำอบไทย) over them. It is believed that doing this will bring good luck and prosperity for the New Year. In many cities, such as Chiang Mai, the Buddha images from all of the city's important monasteries are paraded through the streets so that people can toss water at them, ritually 'bathing' the images, as they pass by on ornately decorated floats. In northern Thailand, people may carry handfuls of sand to their neighborhood monastery in order to recompense the dirt that they have carried away on their feet during the rest of the year. The sand is then sculpted into stupa-shaped piles and decorated with colorful flags.

Some people make New Year resolutions - to refrain from bad behavior, or to do good things. Songkran is a time for cleaning and renewal. Besides washing household Buddha images, many Thais also take this opportunity to give their home a thorough cleaning.
People in a tuk tuk getting soaked during Songkran in Chiang Mai
The use of chalk (Thai: ดินสอพอง) is also very common having originated in the chalk used by monks to mark blessings.
Some children having fun at the Bangkok Zoo during Songkran.

The throwing of water originated as a way to pay respect to people, by capturing the water after it had been poured over the Buddhas for cleansing and then using this "blessed" water to give good fortune to elders and family by gently pouring it on the shoulder. Among young people the holiday evolved to include dousing strangers with water to relieve the heat, since April is the hottest month in Thailand (temperatures can rise to over 100°F or 40°C on some days). This has further evolved into water fights and splashing water over people riding in vehicles.

Nowadays, the emphasis is on fun and water-throwing rather than on the festival's spiritual and religious aspects, which sometimes prompts complaints from traditionalists. In recent years there have been calls to moderate the festival to lessen the many alcohol-related road accidents as well as injuries attributed to extreme behavior such as water being thrown in the faces of traveling motorcyclists.

The water is meant as a symbol of washing all of the bad away and is sometimes filled with fragrant herbs when celebrated in the traditional manner.

Songkran is also celebrated in many places with a pageant in which young women demonstrate their beauty and unique talents, as judged by the audience. The level of financial support usually determines the winner, since, to show your support you must purchase necklaces which you place on your chosen girl.

Astrological calculation
Although the traditional calendar of Thailand like most of Southeast Asia utilizes a lunisolar calendar, the date of the new year was calculated on a purely solar basis. The term Songkran comes from Sanskrit "Sankranta" and means "a move or change" - in this case the move of the sun into the Aries zodiac - Mesha Sankranti.

Chola Dynasty ruled Thailand during Rajendra Chola I's reign 1012 C.E. – 1044 C.E. Hence this festival coincides with the Tamil New Year, Puthandu, which follows the Nirayanam vernal equinox and generally falls either on 13 or 14 April of the Gregorian year. 13 or 14 April marks the first day of the traditional Tamil calendar and is a public holiday in both Tamil Nadu and Sri Lanka. Tropical vernal equinox falls around 22 March, and adding 23 degrees of trepidation or oscillation to it, we get the Hindu sidereal or Nirayana Mesha Sankranti (Sun's transition into Nirayana Aries). Hence, Songkran falls on the same date as observed by most traditional calendars in India as in Tamil Nadu, Assam, Bengal, Kerala, Manipur, Orissa, Punjab, Tripura etc. not to mention Nepal, Bangladesh, Burma, Cambodia, Laos and Sri Lanka.

Greetings
The traditional greeting is "สวัสดีปีใหม่" (sa-wat-di pi mai), basically "Happy New Year". Sawatdi is also used for "hello" or "goodbye". Pi and mai mean "year" and "new" respectively in Thai. Another greeting used is "สุขสันต์วันปีใหม่" (suk-san wan pi mai), where suksan means "happy".

However, most people use "สุขสันต์วันสงกรานต์" (suk-san wan songkran) — meaning "Happy Songkran Day" — since pi mai is more often linked with 1 January. Suksan is also used as an attribute for other days such as Valentine's Day ("สุขสันต์วันแห่งความรัก" suk-san wan haeng khwam rak; Happy Valentine's Day).


In other calendars
Songkran is also celebrated in Laos (called pee mai lao), Cambodia (called Chaul Chnam Thmey, Cambodian New Year), Myanmar (called Thingyan), and by the Dai people in Yunnan, China (called Water-Splashing Festival). The same day is celebrated in South Asian calendars as well: the Assamese (called Rongali Bihu), Bengali (called Pohela Boishakh), Oriya (called Maha Visuba Sankranthi), Malayali, Punjabi, Sinhalese, and Tamil New Years fall on the same dates, based on the astrological event of the sun beginning its northward journey. Songkran as such is similar to the Indian festival of Holi, with a lot of splashing of water as paints, colored dusts, and fragrances.

The traditional new year celebration in Sri Lanka also coincides with the Thai new year.

In Nepal, the official new year is celebrated on the 1st of Baisakh (Baisākh) according to astrological calendar Vikram Samwat and day often falls somewhere between 12–15 April.

It occurs at the same time as that given by Bede for festivals of Eostre — and Easter weekend occasionally coincides with Songkran (most recently 1979, 1990, and 2001, but not again until 2085[2].)

วันพฤหัสบดีที่ 15 มีนาคม พ.ศ. 2555

Ice cream




An ice cream store in Damascus, Syria

In the Persian Empire, people would pour grape-juice concentrate over snow, in a bowl, and eat this as a treat, especially when the weather was hot. Snow would either be saved in the cool-keeping underground chambers known as "yakhchal", or taken from snowfall that remained at the top of mountains by the summer capital - Hagmatana, Ecbatana or Hamedan of today. In 400 BC, the Persians went further and invented a special chilled food, made of rose water and vermicelli, which was served to royalty during summers.The ice was mixed with saffron, fruits, and various other flavours.

Ancient civilizations have served ice for cold foods for thousands of years. The BBC reports that a frozen mixture of milk and rice was used in China around 200 BC.The Roman Emperor Nero (37–68) had ice brought from the mountains and combined it with fruit toppings. These were some early chilled delicacies.

Arabs were perhaps the first to use milk as a major ingredient in the production of ice cream. They sweetened it with sugar rather than fruit juices, and perfected means of commercial production. As early as the 10th century, ice cream was widespread among many of the Arab world's major cities, such as Baghdad, Damascus, and Cairo. It was produced from milk or cream, often with some yoghurt, and was flavoured with rosewater, dried fruits and nuts. It is believed that the recipe was based on older Ancient Arabian, Mesopotamian, Greek, or Roman recipes, which were, it is presumed, the first and precursors to Persian faloodeh.

Maguelonne Toussaint-Samat asserts, in her History of Food, that "the Chinese may be credited with inventing a device to make sorbets and ice cream. They poured a mixture of snow and saltpetre over the exteriors of containers filled with syrup, for, in the same way as salt raises the boiling-point of water, it lowers the freezing-point to below zero." (Toussaint does not provide historical documentation for this.) Some distorted accounts claim that in the age of Emperor Yingzong, Song Dynasty (960-1279) of China, a poem named "詠冰酪" (Ode to the ice cheese) was written by the poet Yang Wanli. Actually, this poem was named "詠酥” (Ode to the pastry; 酥 is a kind of food much like pastry in the Western world) and has nothing to do with ice cream. It has also been claimed that, in the Yuan Dynasty, Kublai Khan enjoyed ice cream and kept it a royal secret until Marco Polo visited China and took the technique of making ice cream to Italy.



Japanese green tea ice cream with anko sauce

In the sixteenth century, the Mughal emperors used relays of horsemen to bring ice from the Hindu Kush to Delhi, where it was used in fruit sorbets.

When Italian duchess Catherine de' Medici married the duc d’Orléans in 1533, she is said to have brought with her to France some Italian chefs who had recipes for flavoured ices or sorbets. One hundred years later, Charles I of England was, it was reported, so impressed by the "frozen snow" that he offered his own ice cream maker a lifetime pension in return for keeping the formula secret, so that ice cream could be a royal prerogative. There is no historical evidence to support these legends, which first appeared during the 19th century.

The first recipe in French for flavoured ices appears in 1674, in Nicholas Lemery’s Recueil de curiositéz rares et nouvelles de plus admirables effets de la nature.Recipes for sorbetti saw publication in the 1694 edition of Antonio Latini's Lo Scalco alla Moderna (The Modern Steward). Recipes for flavoured ices begin to appear in François Massialot's Nouvelle Instruction pour les Confitures, les Liqueurs, et les Fruits, starting with the 1692 edition. Massialot's recipes result in a coarse, pebbly texture. Latini claims that the results of his recipes should have the fine consistency of sugar and snow.

True ice cream

Ice cream recipes first appeared in 18th-century England and America. The recipe for ice cream was published in Mrs. Mary Eales's Receipts in London in 1718.

To ice cream

Take Tin Ice-Pots, fill them with any Sort of Cream you like, either plain or sweeten’d, or Fruit in it; shut your Pots very close; to six Pots you must allow eighteen or twenty Pound of Ice, breaking the Ice very small; there will be some great Pieces, which lay at the Bottom and Top: You must have a Pail, and lay some Straw at the Bottom; then lay in your Ice, and put in amongst it a Pound of Bay-Salt; set in your Pots of Cream, and 93 lay Ice and Salt between every Pot, that they may not touch; but the Ice must lie round them on every Side; lay a good deal of Ice on the Top, cover the Pail with Straw, set it in a Cellar where no Sun or Light comes, it will be froze in four Hours, but it may stand longer; then take it out just as you use it; hold it in your Hand and it will slip out. When you wou’d freeze any Sort of Fruit, either Cherries, Rasberries, Currants, or Strawberries, fill your Tin-Pots with the Fruit, but as hollow as you can; put to them Lemmonade, made with Spring-Water and Lemmon-Juice sweeten’d; put enough in the Pots to make the Fruit hang together, and put them in Ice as you do Cream.

The earliest reference to ice cream given by the Oxford English Dictionary is from 1744, reprinted in a magazine in 1877. 1744 in Pennsylvania Mag. Hist. & Biogr. (1877) I. 126 Among the rarities..was some fine ice cream, which, with the strawberries and milk, eat most deliciously.

The 1751 edition of The Art of Cookery made Plain and Easy by Hannah Glasse features a recipe for ice cream. OED gives her recipe: H. GLASSE Art of Cookery (ed. 4) 333 (heading) To make Ice Cream..set it [sc. the cream] into the larger Bason. Fill it with Ice, and a Handful of Salt.

The year 1768 saw the publication of L'Art de Bien Faire les Glaces d'Office by M. Emy, a cookbook devoted entirely to recipes for flavoured ices and ice cream.

Ice cream was introduced to the United States by Quaker colonists who brought their ice cream recipes with them. Confectioners sold ice cream at their shops in New York and other cities during the colonial era. Ben Franklin, George Washington, and Thomas Jefferson were known to have regularly eaten and served ice cream. First Lady Dolley Madison is also closely associated with the early history of ice cream in the United States. One respected history of ice cream states that, as the wife of U.S. President James Madison, she served ice cream at her husband's Inaugural Ball in 1813.

Around 1832, Augustus Jackson, an African American confectioner, not only created multiple ice cream recipes but also invented a superior technique to manufacture ice cream.

In 1843, Nancy Johnson of Philadelphia was issued the first U.S. patent for a small-scale handcranked ice cream freezer. The invention of the ice cream soda gave Americans a new treat, adding to ice cream's popularity. The invention of this cold treat is attributed to Robert Green in 1874, although there is no conclusive evidence to prove his claim.



Ice cream sundaes with fruit, nuts, and a wafer

The ice cream sundae originated in the late 19th century. Several men claimed to have created the first sundae, but there is no conclusive evidence to back up any of their stories. Some sources say that the sundae was invented to circumvent blue laws, which forbade serving sodas on Sunday. Towns claiming to be the birthplace of the sundae include Buffalo, New York; Two Rivers, Wisconsin; Ithaca, New York; and Evanston, Illinois. Both the ice cream cone and banana split became popular in the early 20th century. Several food vendors claimed to have invented the ice cream cone at the 1904 World's Fair in St. Louis, MO. Europeans were eating cones long before 1904.

In the UK, ice cream remained an expensive and rare treat, until large quantities of ice began to be imported from Norway and the US in the mid-Victorian era. A Swiss-Italian businessman, Carlo Gatti, opened the first ice cream stall outside Charing Cross station in 1851, selling scoops of ice cream in shells for one penny.



George and Davis' Ice Cream Cafe on Little Clarendon Street, Oxford.

The history of ice cream in the 20th century is one of great change and increases in availability and popularity. In the United States in the early 20th century, the ice cream soda was a popular treat at the soda shop, the soda fountain, and the ice cream parlor. During American Prohibition, the soda fountain to some extent replaced the outlawed alcohol establishments such as bars and saloons.

Ice cream became popular throughout the world in the second half of the 20th century after cheap refrigeration became common. There was an explosion of ice cream stores and of flavours and types. Vendors often competed on the basis of variety. Howard Johnson's restaurants advertised "a world of 28 flavors." Baskin-Robbins made its 31 flavours ("one for every day of the month") the cornerstone of its marketing strategy. The company now boasts that it has developed over 1000 varieties.

One important development in the 20th century was the introduction of soft ice cream. A chemical research team in Britain (of which a young Margaret Thatcher was a member) discovered a method of doubling the amount of air in ice cream, which allowed manufacturers to use less of the actual ingredients, thereby reducing costs. It made possible the soft ice cream machine in which a cone is filled beneath a spigot on order. In the United States, Dairy Queen, Carvel, and Tastee-Freez pioneered in establishing chains of soft-serve ice cream outlets.

Technological innovations such as these have introduced various food additives into ice cream, the notable one being the stabilizing agent gluten, to which some people have an intolerance. Recent awareness of this issue has prompted a number of manufacturers to start producing gluten-free ice cream.

The 1980s saw a return of the older, thicker ice creams being sold as "premium" and "superpremium" varieties under brands such as Ben & Jerry's and Häagen-Dazs.

Types of Ice Cream


Hard Ice Cream

Traditional or regular ice cream made with cream and/or milk, sugar, and may contain eggs, stabilizers and other flavouring ingredients such as vanilla, chocolate, fruit and many other add-ins…the options seem endless.

French Ice Cream

Traditional ice cream made with a custard base containing cream and/or milk, egg yolks or whole eggs, sugar, stabilizers and other flavourings.

Soft Ice Cream

Ice cream made with milk and/or cream, sugar, stabilizers and flavourings that is frozen at a higher temperature in a special machine that keeps the mixture smooth, creamy and soft while it’s being frozen. It is stored in the machine as a liquid ice cream mix and frozen as it’s served into a cone or bowl. This is available at restaurants and specialty ice cream shops.

Light Ice Cream

Traditional ice cream made with milk ingredients, sugar, stabilizers and other flavourings that contains at least 25% less milk fat than regular hard ice cream.

Reduced Fat Ice Cream

Made with lower fat milk ingredients, sugar, stabilizers and other flavourings. The amount of fat can vary and is declared on the label.

Fat-free Frozen Dairy Dessert

Made with modified milk ingredients, sugar or artificial or natural sweeteners and stabilizers, this ice cream contains about 0.1% fat or 0.5 g fat per serving. No Sugar Added Ice Cream or Frozen Dairy Dessert

Similar to ice cream, generally made with milk ingredients and stabilizers as well as artificial sweeteners or natural sugar substitutes and other flavourings. These desserts are often lower in fat than regular ice cream.

Lactose-free Ice Cream

Ice cream made with added lactase enzyme and therefore contains no detectable lactose [link to lactose intolerance article] making it more easily digestible for people with lactose intolerance.

Gluten-Free Ice Cream

Since some stabilizers and other ingredients added in ice cream production may contain gluten, it is important to read the ingredients list to make sure the ice cream is gluten-free. Some brands include a “gluten-free” logo on the label.

Organic Ice Cream

Any type of ice cream made with organically produced milk and other ingredients. Italian-style Gelato

A dense ice cream generally made with more milk than cream (making it lower in fat), egg yolks, sugar or other sweeteners and flavourings. Gelato has a more intense flavour than traditional ice cream and less air.

Charles Robert Darwin

ดาร์วินเกิดเมื่อวันที่ 12 กุมภาพันธ์ ค.ศ. 1809 ที่เมืองชรูเบอรี่ (Shrubbvery) ชรอพไชร์ (Shrophire) ประเทศอังกฤษ (England) ในครอบครัวที่มีฐานะมั่งคั่งและมีชื่อเสียงมากที่สุดครอบครัวหนึ่งของอังกฤษ เขาไปเรียนต่อที่มหาวิทยาลัยเคมบริดส์ เขาสำเร็จการศึกษาเมื่ออายุ 19 ปี ด้านธรรมชาติวิทยา ระหว่างที่เล่าเรียนอยู่นั่นเขาสนใจอ่านหนังสือเรื่องธรรมชาติวิทยาของชาวเยอรมัน จึงสนใจสภาพความเป็นอยู่ของมนุษย์ สัตว์และพืช รวมทั้งการเกิดและความเป็นมาอีกด้วย ดาร์วินศึกษาเรื่องราวของสิ่งแวดล้อมและธรรมชาติทุกอย่างที่อยู่ใกล้มนุษย์และเป็นผู้บุกเบิกในการเดินทางรอบโลกเพื่อสำรวจด้านนิเวศวิทยา ผู้พิสูจน์ว่ามนุษย์มาจากลิง ซึ่งเมื่อก่อนจะเชื่อกันว่าพระเจ้าสร้างโลกและเป็นผู้สร้างมนุษย์ด้วย แต่กลับมีฝรั่งอีกคนยืนยันว่า มนุษย์มีวิวัฒนาการมาจากพืชและสัตว์จนกลายร่างมาเป็นมนุษย์ สัตว์ที่มีลักษณะใกล้เคียงมนุษย์มากที่สุดคือ ลิง ลิงซิมแปนซีที่ไม่มีหาง แต่มีหน้าตาท่าทาง ความเป็นอยู่คล้ายมนุษย์ทุกอย่าง เช่น ดีใจ เสียใจ รักหรือโกรธ ทั้งนี้ก็เป็นผลมาจากการที่เขาได้เดินทางไปสำรวจมนุษย์และสัตว์มารอบโลกเป็นเวลากว่า 6 ปี หลังจากจบการศึกษาพอดีกับรัฐบาลได้ส่งคนออกสำรวจโลกด้านธรรมชาติวิทยา ชาร์ล ดาวิน ได้ร่วมออกเดินทางด้วยเป็นเวลากว่า 5 ปีเศษ เรือเดินทางไปอเมริกาใต้อ้อมแหลมออกมหาสมุทรแปซิฟิกไปสุมาตรา อ้อมแหลมกู๊ดโฮปกลับไปอังกฤษ ระหว่างการเดินทางเขาได้พบทั้งคน สัตว์ และพืชนานาชนิด เขาวาดภาพ และเก็บตัวอย่างกลับมาอังกฤษมากมาย จนเขาเชื่อโดยมีหลักฐานยืนยันว่าสัตว์และพืชมีต้นกำเนิดมาจากแหล่งเดียวกันและคนมีวิวัฒนาการมาจากลิง

- ค.ศ. 1836 ตีพิมพ์ผลงาน A Naturalist's Voyage Around the World

- ค.ศ. 1842 ตีพิมพ์ผลงาน The Structure and Distribution of Coral Reef

- .. 1844 ตีพิมพ์ผลงาน Geological Observations of South America

- ค.ศ. 1846 ตีพิมพ์ผลงาน Geological Observation on Volcanic Island

-ค.ศ. 1859 ตีพิมพ์ผลงาน The Original of Species หรือ กำเนิดพืชและสัตว์ต่าง ๆ

- ค.ศ. 1881 พิมพ์หนังสือชื่อว่า The Formation of Vegetable Mould Through The Action of Worms ซึ่งเป็นหนังสือเล่มสุดท้ายก่อนที่ดาร์วินจะเสียชีวิตในวันที่ 19 เมษายน ค.ศ. 1882


Chocolate




Chocolate is a psychoactive food. It is made from the seeds of the tropical cacao tree. The cacao tree was named by the 17th century Swedish naturalist, Linnaeus. The Greek term theobroma means literally "food of the gods". Chocolate has also been called the food of the devil; but the theological basis of this claim is obscure.

Cacao beans were used by the Aztecs to prepare a hot, frothy beverage with stimulant and restorative properties. Chocolate itself was reserved for warriors, nobility and priests. The Aztecs esteemed its reputed ability to confer wisdom and vitality. Taken fermented as a drink, chocolate was also used in religious ceremonies. The sacred concoction was associated with Xochiquetzal, the goddess of fertility. Emperor Montezuma allegedly drank 50 goblets a day. Aztec taxation was levied in cacao beans. 100 cacao beans could buy a slave. 12 cacao beans bought the services of courtesan.

The celebrated Italian libertine Giacomo Casanova (1725-1798) took chocolate before bedding his conquests on account of chocolate's reputation as a subtle aphrodisiac. More recently, a study of 8000 male Harvard graduates showed that chocoholics lived longer than abstainers. Their longevity may be explained by the high polyphenol levels in chocolate. Polyphenols reduce the oxidation of low-density lipoproteins and thereby protect against heart disease. Such theories are still speculative.

Placebo-controlled trials suggest chocolate consumption may subtly enhance cognitive performance. As reported by Dr Bryan Raudenbush (2006), scores for verbal and visual memory are raised by eating chocolate. Impulse-control and reaction-time are also improved. This study needs replicating.

A symposium at the 2007 American Association for the Advancement of Science - hyped as a potentially "mind-altering experience" - presented evidence that chocolate consumption can be good for the brain. Experiments with chocolate-fed mice suggest that flavanol-rich cocoa stimulates neurovascular activity, enhancing memory and alertness. This research was partly funded by Mars, Inc.

Coincidentally or otherwise, many of the worlds oldest supercentenarians, e.g. Jeanne Calment (1875-1997) and Sarah Knauss (1880-1999), were passionately fond of chocolate. Jeanne Calment habitually ate two pounds of chocolate per week until her physician induced her to give up sweets at the age of 119 - three years before her death aged 122. Life-extensionists are best advised to eat dark chocolate rather than the kinds of calorie-rich confectionery popular in America.


In the UK, chocolate bars laced with cannabis are popular with many victims of multiple sclerosis. This brand of psychoactive confectionery remains unlicensed.

Chocolate as we know it today dates to the inspired addition of triglyceride cocoa butter by Swiss confectioner Rodolphe Lindt in 1879. The advantage of cocoa butter is that its addition to chocolate sets a bar so that it will readily snap and then melt on the tongue. Cocoa butter begins to soften at around 75 F; it melts at around 97 F.

Today, chocolates of every description are legal, unscheduled and readily available over the counter. Some 50% of women reportedly claim to prefer chocolate to sex, though this response may depend on the attributes of the interviewer.

In 2007, a UK study suggested that eating dark chocolate was more rewarding than passionate kissing. More research is needed to replicate this result.

More than 300 different constituent compounds in chocolate have been identified. Chocolate clearly delivers far more than a brief sugar high. Yet its cocktail of psychochemical effects in the central nervous system are poorly understood. So how does it work?
Chocolate is a psychoactive food. It is made from the seeds of the tropical cacao tree. The cacao tree was named by the 17th century Swedish naturalist, Linnaeus. The Greek term theobroma means literally "food of the gods". Chocolate has also been called the food of the devil; but the theological basis of this claim is obscure.

Cacao beans were used by the Aztecs to prepare a hot, frothy beverage with stimulant and restorative properties. Chocolate itself was reserved for warriors, nobility and priests. The Aztecs esteemed its reputed ability to confer wisdom and vitality. Taken fermented as a drink, chocolate was also used in religious ceremonies. The sacred concoction was associated with Xochiquetzal, the goddess of fertility. Emperor Montezuma allegedly drank 50 goblets a day. Aztec taxation was levied in cacao beans. 100 cacao beans could buy a slave. 12 cacao beans bought the services of courtesan.

The celebrated Italian libertine Giacomo Casanova (1725-1798) took chocolate before bedding his conquests on account of chocolate's reputation as a subtle aphrodisiac. More recently, a study of 8000 male Harvard graduates showed that chocoholics lived longer than abstainers. Their longevity may be explained by the high polyphenol levels in chocolate. Polyphenols reduce the oxidation of low-density lipoproteins and thereby protect against heart disease. Such theories are still speculative.

Placebo-controlled trials suggest chocolate consumption may subtly enhance cognitive performance. As reported by Dr Bryan Raudenbush (2006), scores for verbal and visual memory are raised by eating chocolate. Impulse-control and reaction-time are also improved. This study needs replicating.

A symposium at the 2007 American Association for the Advancement of Science - hyped as a potentially "mind-altering experience" - presented evidence that chocolate consumption can be good for the brain. Experiments with chocolate-fed mice suggest that flavanol-rich cocoa stimulates neurovascular activity, enhancing memory and alertness. This research was partly funded by Mars, Inc.

Coincidentally or otherwise, many of the worlds oldest supercentenarians, e.g. Jeanne Calment (1875-1997) and Sarah Knauss (1880-1999), were passionately fond of chocolate. Jeanne Calment habitually ate two pounds of chocolate per week until her physician induced her to give up sweets at the age of 119 - three years before her death aged 122. Life-extensionists are best advised to eat dark chocolate rather than the kinds of calorie-rich confectionery popular in America.


In the UK, chocolate bars laced with cannabis are popular with many victims of multiple sclerosis. This brand of psychoactive confectionery remains unlicensed.

Chocolate as we know it today dates to the inspired addition of triglyceride cocoa butter by Swiss confectioner Rodolphe Lindt in 1879. The advantage of cocoa butter is that its addition to chocolate sets a bar so that it will readily snap and then melt on the tongue. Cocoa butter begins to soften at around 75 F; it melts at around 97 F.

Today, chocolates of every description are legal, unscheduled and readily available over the counter. Some 50% of women reportedly claim to prefer chocolate to sex, though this response may depend on the attributes of the interviewer.

In 2007, a UK study suggested that eating dark chocolate was more rewarding than passionate kissing. More research is needed to replicate this result.

More than 300 different constituent compounds in chocolate have been identified. Chocolate clearly delivers far more than a brief sugar high. Yet its cocktail of psychochemical effects in the central nervous system are poorly understood. So how does it work?


CHOCOLATE : the Psychoactive Cocktail
Chocolate contains small quantities of anandamide, an endogenous cannabinoid found in the brain. Sceptics claim one would need to consume several pounds of chocolate to gain any very noticeable psychoactive effects; and eat a lot more to get fully stoned. Yet it's worth noting that N-oleolethanolamine and N-linoleoylethanolamine, two structural cousins of anandamide present in chocolate, both inhibit the metabolism of anandamide. It has been speculated that they promote and prolong the feeling of well-being induced by anandamide.

Chocolate contains caffeine. But the caffeine is present only in modest quantities. It is easily obtained from other sources. Indeed a whole ounce of milk chocolate contains no more caffeine than a typical cup of "decaffeinated" coffee.

Chocolate's theobromine content may contribute to - but seems unlikely to determine - its subtle but distinctive psychoactive profile. Surprisingly, perhaps, recent research suggests that pure theobromine may be superior to opiates as a cough medicine due to its action on the vagus nerve.

Chocolate also contains tryptophan. Tryptophan is an essential amino acid. It is the rate-limiting step in the production of the mood-modulating neurotransmitter serotonin. Enhanced serotonin function typically diminishes anxiety. Yet tryptophan can normally be obtained from other sources as well; and only an unusually low-protein, high-carbohydrate meal will significantly increase its rate of intake into the brain.

Like other palatable sweet foods, consumption of chocolate triggers the release of endorphins, the body's endogenous opiates. Enhanced endorphin-release reduces the chocolate-eater's sensitivity to pain. Endorphins probably contribute to the warm inner glow induced in susceptible chocoholics. This sensation explains why chocolate gifts are a great way to bring joy to a loved one.

Acute monthly cravings for chocolate amongst pre-menstrual women may be partly explained by its rich magnesium content. Magnesium deficiency exacerbates PMT. Before menstruation, too, levels of the hormone progesterone are high. Progesterone promotes fat storage, preventing its use as fuel; elevated pre-menstrual levels of progesterone may cause a periodic craving for fatty foods. One study reported that 91% of chocolate-cravings associated with the menstrual cycle occurred between ovulation and the start of menstruation. Chocolate cravings are admitted by 15% of men and around 40% of women. Cravings are usually most intense in the late afternoon and early evening.


Cacao and chocolate bars contain a group of neuroactive alkaloids known as tetrahydro-beta-carbolines. Tetrahydro-beta-carbolines are also found in beer, wine and liquor; they have been linked to alcoholism. But the possible role of these chemicals in chocolate addiction remains unclear.

One UK study of the human electroencephalographic (EEG) response to chocolate suggests that the odour of chocolate significantly reduces theta activity in the brain. Reduced theta activity is associated with enhanced relaxation. This study needs replication.

Perhaps chocolate's key ingredient is its phenylethylamine (PEA) "love-chemical". Yet the role of the "chocolate amphetamine" is disputed. Most if not all chocolate-derived phenylethylamine is metabolised before it reaches the CNS. Some people may be sensitive to its effects in very small quantities.

Phenylethylamine is itself a naturally occurring trace amine in the brain. Phenylethylamine releases dopamine in the mesolimbic pleasure-centres; it peaks during orgasm. Taken in unnaturally high doses, phenylethylamine can produce stereotyped behaviour more prominently even than amphetamine. Phenylethylamine has distinct binding sites but no specific neurons. It helps mediate feelings of attraction, excitement, giddiness, apprehension and euphoria; but confusingly, phenylethylamine has also been described as an endogenous anxiogen. One of its metabolites is unusually high in subjects with paranoid schizophrenia.

There is even a phenylethylamine theory of depression. Monoamine oxidase type-b has been described as phenylethylaminase; and taking a selective MAO-b inhibitor, such as selegiline (l-deprenyl, Eldepryl) or rasagiline (Azilect) can accentuate chocolate's effects. Some subjects report that bupropion (Wellbutrin, Zyban) reduces their chocolate-cravings; but other chocoholics dispute this.

CHOCOLATE : the Psychoactive Cocktail
Chocolate contains small quantities of anandamide, an endogenous cannabinoid found in the brain. Sceptics claim one would need to consume several pounds of chocolate to gain any very noticeable psychoactive effects; and eat a lot more to get fully stoned. Yet it's worth noting that N-oleolethanolamine and N-linoleoylethanolamine, two structural cousins of anandamide present in chocolate, both inhibit the metabolism of anandamide. It has been speculated that they promote and prolong the feeling of well-being induced by anandamide.

Chocolate contains caffeine. But the caffeine is present only in modest quantities. It is easily obtained from other sources. Indeed a whole ounce of milk chocolate contains no more caffeine than a typical cup of "decaffeinated" coffee.

Chocolate's theobromine content may contribute to - but seems unlikely to determine - its subtle but distinctive psychoactive profile. Surprisingly, perhaps, recent research suggests that pure theobromine may be superior to opiates as a cough medicine due to its action on the vagus nerve.

Chocolate also contains tryptophan. Tryptophan is an essential amino acid. It is the rate-limiting step in the production of the mood-modulating neurotransmitter serotonin. Enhanced serotonin function typically diminishes anxiety. Yet tryptophan can normally be obtained from other sources as well; and only an unusually low-protein, high-carbohydrate meal will significantly increase its rate of intake into the brain.

Like other palatable sweet foods, consumption of chocolate triggers the release of endorphins, the body's endogenous opiates. Enhanced endorphin-release reduces the chocolate-eater's sensitivity to pain. Endorphins probably contribute to the warm inner glow induced in susceptible chocoholics. This sensation explains why chocolate gifts are a great way to bring joy to a loved one.

Acute monthly cravings for chocolate amongst pre-menstrual women may be partly explained by its rich magnesium content. Magnesium deficiency exacerbates PMT. Before menstruation, too, levels of the hormone progesterone are high. Progesterone promotes fat storage, preventing its use as fuel; elevated pre-menstrual levels of progesterone may cause a periodic craving for fatty foods. One study reported that 91% of chocolate-cravings associated with the menstrual cycle occurred between ovulation and the start of menstruation. Chocolate cravings are admitted by 15% of men and around 40% of women. Cravings are usually most intense in the late afternoon and early evening.


Cacao and chocolate bars contain a group of neuroactive alkaloids known as tetrahydro-beta-carbolines. Tetrahydro-beta-carbolines are also found in beer, wine and liquor; they have been linked to alcoholism. But the possible role of these chemicals in chocolate addiction remains unclear.

One UK study of the human electroencephalographic (EEG) response to chocolate suggests that the odour of chocolate significantly reduces theta activity in the brain. Reduced theta activity is associated with enhanced relaxation. This study needs replication.

Perhaps chocolate's key ingredient is its phenylethylamine (PEA) "love-chemical". Yet the role of the "chocolate amphetamine" is disputed. Most if not all chocolate-derived phenylethylamine is metabolised before it reaches the CNS. Some people may be sensitive to its effects in very small quantities.

Phenylethylamine is itself a naturally occurring trace amine in the brain. Phenylethylamine releases dopamine in the mesolimbic pleasure-centres; it peaks during orgasm. Taken in unnaturally high doses, phenylethylamine can produce stereotyped behaviour more prominently even than amphetamine. Phenylethylamine has distinct binding sites but no specific neurons. It helps mediate feelings of attraction, excitement, giddiness, apprehension and euphoria; but confusingly, phenylethylamine has also been described as an endogenous anxiogen. One of its metabolites is unusually high in subjects with paranoid schizophrenia.

There is even a phenylethylamine theory of depression. Monoamine oxidase type-b has been described as phenylethylaminase; and taking a selective MAO-b inhibitor, such as selegiline (l-deprenyl, Eldepryl) or rasagiline (Azilect) can accentuate chocolate's effects. Some subjects report that bupropion (Wellbutrin, Zyban) reduces their chocolate-cravings; but other chocoholics dispute this.

วันพฤหัสบดีที่ 8 มีนาคม พ.ศ. 2555

La Joconde : Mona Lisa a une soeur jumelle

Le musée du Prado de Madrid a retrouvé au fond de ses archives une copie quasiment similaire de Mona Lisa, la célèbre toile de Léonard de Vinci. Contrairement aux autres, cet exemplaire aurait été réalisé à la même époque, par l'un des disciples de l'artiste italien.

"C'est très, très proche de ce à quoi la peinture ressemblait en 1505". Le constat de Miguel Falomir, conservateur de l'Art italien du musée du Prado de Madrid, est sans équivoque : Mona Lisa possède une soeur jumelle. Le tableau a été retrouvé mercredi dans les caves du musée espagnol.

La toile était connue de l'établissement mais un fond noir en arrière plan occultait le paysage. Mis au grand jour après une restauration de l'oeuvre, celui-ci s'est révélé très semblable à l'original signé Léonard de Vinci. "Il a été durant de nombreuses années exposé en salle. Nous ne savions pas ce qu'il y avait en dessous", a expliqué Gabriele Finaldi, directeur adjoint du Prado chargé de la conservation et des recherches. "Le tableau est étonnamment bien conservé. On ne sait pas pourquoi, au 18e siècle, quelqu'un a recouvert l'arrière-plan. C'est peut-être lié aux goûts esthétiques de l'époque", explique-t-il.

Exposée au Louvre en mars
Selon les experts cette copie a été réalisée dans le studio de Léonard de Vinci par l'un de ses élèves permettant ainsi d'éclairer le travail du peintre italien. Ils hésitent sur son identité : Andrea Salai, futur amant de Vinci, ou Francesco Melzi.

Ces mêmes spécialistes ne pouvaient jusqu'alors imaginer détenir une copie aussi conforme produite elle aussi en Italie et à la même époque. La cause de cette ignorance est liée à la nature du support. Si la Joconde est peinte sur noyer, une armature récurrente chez les Florentins à l'époque, l'oeuvre découverte au Prado est, elle, exposée sur chêne, un bois peu utilisé en Italie.

Sur cette réplique, Mona Lisa apparaît avec le même sourire énigmatique que La Joconde exposée au musée du Louvre. Principale différence : La Mona Lisa du Prado semble plus jeune, car l'original parisien est "très sale", selon le directeur adjoint. "Les personnages ont donc tendance à avoir l'air plus vieux."