A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the sensory organs for senses such as vision. It is the most complex organ in a vertebrate's body. In a human, the cerebral cortex contains approximately 14–16 billion neurons, and the estimated number of neurons in the cerebellum is 55–70 billion. Each neuron is connected by synapses to several thousand other neurons. These neurons typically communicate with one another by means of long fibers called axons, which carry trains of signal pulses called action potentials to distant parts of the brain or body targeting specific recipient cells.
Physiologically, brains exert centralized control over a body's other organs. They act on the rest of the body both by generating patterns of muscle activity and by driving the secretion of chemicals called hormones. This centralized control allows rapid and coordinated responses to changes in the environment. Some basic types of responsiveness such as reflexes can be mediated by the spinal cord or peripheral ganglia, but sophisticated purposeful control of behavior based on complex sensory input requires the information integrating capabilities of a centralized brain.

Brain

Guinness World Records, known from its inception in 1955 until 1999 as The Guinness Book of Records and in previous United States editions as The Guinness Book of World Records, is a reference book published annually, listing world records both of human achievements and the extremes of the natural world. The brainchild of Sir Hugh Beaver, the book was co-founded by twin brothers Norris and Ross McWhirter in Fleet Street, London, in August 1954.
As of the 2021 edition, it is now in its 66th year of publication, published in 100 countries and 23 languages, and maintains over 53,000 records in its database. The international franchise has extended beyond print to include television series and museums. The popularity of the franchise has resulted in Guinness World Records becoming the primary international authority on the cataloguing and verification of a huge number of world records. The organisation employs record adjudicators to verify the authenticity of the setting and breaking of records.


== History ==
On 10 November 1951, Sir Hugh Beaver, then the managing director of the Guinness Breweries, went on a shooting party in the North Slob, by the River Slaney in County Wexford, Ireland. After missing a shot at a golden plover, he became involved in an argument over which was the fastest game bird in Europe, the golden plover or the red grouse – it is the plover. That evening at Castlebridge House, he realised that it was impossible to confirm in reference books whether or not the golden plover was Europe's fastest game bird. Beaver knew that there must have been numerous other questions debated nightly in pubs throughout Ireland and abroad, but there was no book in the world with which to settle arguments about records.

Guinness World Records

Guinness_World_Records

The Great Sphinx of Giza, commonly referred to as the Sphinx of Giza or just the Sphinx, is a limestone statue of a reclining sphinx, a mythical creature. Facing directly from west to east, it stands on the Giza Plateau on the west bank of the Nile in Giza, Egypt. The face of the Sphinx appears to represent the pharaoh Khafre.Cut from the bedrock, the original shape of the Sphinx has been restored with layers of limestone blocks. It measures 73 m (240 ft) long from paw to tail, 20 m (66 ft) high from the base to the top of the head and 19 m (62 ft) wide at its rear haunches. It is the oldest known monumental sculpture in Egypt and one of the most recognisable statues in the world. The archaeological evidence suggests that it was created by ancient Egyptians of the Old Kingdom during the reign of Khafre (c. 2558–2532 BC).


== Names ==
The original name the Old Kingdom creators gave the Sphinx is unknown, as the Sphinx temple, enclosure and possibly the Sphinx itself was not completed at the time, thus cultural material was limited. In the New Kingdom, the Sphinx was revered as the solar deity Hor-em-akhet (English: Horus of the Horizon; Coptic: ϩⲁⲣⲙⲁϣⲓ; Hellenized: Harmachis), and the pharaoh Thutmose IV (1401–1391 or 1397–1388 BC) specifically referred to it as such in his Dream Stele.The commonly used name "Sphinx" was given to it in classical antiquity, about 2,000 years after the commonly accepted date of its construction by reference to a Greek mythological beast with the head of a woman, a falcon, a cat, or a sheep and the body of a lion with the wings of an eagle. (although, like most Egyptian sphinxes, the Great Sphinx has a man's head and no wings). The English word sphinx comes from the ancient Greek Σφίγξ (transliterated: sphinx) apparently from the verb σφίγγω (transliterated: sphingo / English: to squeeze), after the Greek sphinx who strangled anyone who failed to answer her riddle.Medieval Arab writers, including al-Maqrīzī, call the Sphinx balhib and bilhaw, which suggest a Coptic influence.

Great Sphinx of Giza

Great_Sphinx_of_Giza

Friends is an American television sitcom created by David Crane and Marta Kauffman, which aired on NBC from September 22, 1994, to May 6, 2004, lasting ten seasons. With an ensemble cast starring Jennifer Aniston, Courteney Cox, Lisa Kudrow, Matt LeBlanc, Matthew Perry and David Schwimmer, the show revolves around six friends in their 20s and 30s who live in Manhattan, New York City. The series was produced by Bright/Kauffman/Crane Productions, in association with Warner Bros. Television. The original executive producers were Kevin S. Bright, Kauffman, and Crane.
Kauffman and Crane began developing Friends under the working title Insomnia Cafe between November and December 1993. They presented the idea to Bright, and together they pitched a seven-page treatment of the show to NBC. After several script rewrites and changes, including title changes to Six of One and Friends Like Us, the series was finally named Friends.Filming took place at Warner Bros. Studios in Burbank, California. All ten seasons of Friends ranked within the top ten of the final television season ratings; it ultimately reached the number-one spot in its eighth season. The series finale aired on May 6, 2004, and was watched by around 52.5 million American viewers, making it the fifth most-watched series finale in television history, and the most-watched television episode of the 2000s.Friends received acclaim throughout its run, becoming one of the most popular television shows of all time.

Friends

Arkansas () is a state in the South Central region of the United States, home to more than three million people as of 2018. Its name is from the Osage language, a Dhegiha Siouan language, and referred to their relatives, the Quapaw people. The state's diverse geography ranges from the mountainous regions of the Ozark and Ouachita Mountains, which make up the U.S. Interior Highlands, to the densely forested land in the south known as the Arkansas Timberlands, to the eastern lowlands along the Mississippi River and the Arkansas Delta.
Arkansas is the 29th largest by area and the 33rd most populous U.S. state. The capital and most populous city is Little Rock, in the central part of the state, a hub for transportation, business, culture, and government. The northwestern corner of the state, including the Fayetteville–Springdale–Rogers Metropolitan Area and Fort Smith metropolitan area, is a population, education, and economic center. The largest city in the state's eastern part is Jonesboro. The largest city in the state's southeastern part is Pine Bluff.
Previously part of French Louisiana and the Louisiana Purchase, the Territory of Arkansas was admitted to the Union as the 25th state on June 15, 1836. Much of the Delta had been developed for cotton plantations, and landowners there largely depended on enslaved African Americans' labor.

Arkansas

Bees are insects with wings closely related to wasps and ants, known for their role in pollination and, in the case of the best-known bee species, the western honey bee, for producing honey. Bees are a monophyletic lineage within the superfamily Apoidea. They are presently considered a clade, called Anthophila. There are over 16,000 known species of bees in seven recognized biological families. Some species – including honey bees, bumblebees, and stingless bees – live socially in colonies while most species (>90%) – including mason bees, carpenter bees, leafcutter bees, and sweat bees – are solitary.
Bees are found on every continent except for Antarctica, in every habitat on the planet that contains insect-pollinated flowering plants. The most common bees in the Northern Hemisphere are the Halictidae, or sweat bees, but they are small and often mistaken for wasps or flies. Bees range in size from tiny stingless bee species, whose workers are less than 2 millimetres (0.08 in) long, to Megachile pluto, the largest species of leafcutter bee, whose females can attain a length of 39 millimetres (1.54 in).
Bees feed on nectar and pollen, the former primarily as an energy source and the latter primarily for protein and other nutrients. Most pollen is used as food for their larvae.

Lettuce (Lactuca sativa) is an annual plant of the daisy family, Asteraceae. It is most often grown as a leaf vegetable, but sometimes for its stem and seeds.  Lettuce is most often used for salads, although it is also seen in other kinds of food, such as soups, sandwiches and wraps; it can also be grilled. One variety, the celtuce (asparagus lettuce) (t: 萵苣; s: 莴苣; woju), is grown for its stems, which are eaten either raw or cooked. In addition to its main use as a leafy green, it has also gathered religious and medicinal significance over centuries of human consumption.  Europe and North America originally dominated the market for lettuce, but by the late 20th century the consumption of lettuce had spread throughout the world.  World production of lettuce and chicory for  2017 was 27 million tonnes, 56% of which came from China.Lettuce was originally farmed by the ancient Egyptians, who transformed it from a plant whose seeds were used to create oil into an important food crop raised for its succulent leaves and oil-rich seeds. Lettuce spread to the Greeks and Romans; the latter gave it the name lactuca, from which the English lettuce is derived. By 50 AD, many types were described, and lettuce appeared often in medieval writings, including several herbals. The 16th through 18th centuries saw the development of many varieties in Europe, and by the mid-18th century cultivars were described that can still be found in gardens.

Lettuce

The Mona Lisa (; italian: La Gioconda [la dʒoˈkonda] or Monna Lisa [ˈmɔnna ˈliːza]) is a half-length portrait painting by Italian artist Leonardo da Vinci. Considered an archetypal masterpiece of the Italian Renaissance, it has been described as "the best known, the most visited, the most written about, the most sung about, the most parodied work of art in the world". The painting's novel qualities include the subject's enigmatic expression, the monumentality of the composition, the subtle modelling of forms, and the atmospheric illusionism.The painting is probably of the Italian noblewoman Lisa Gherardini, the wife of Francesco del Giocondo, and is in oil on a white Lombardy poplar panel. Leonardo never gave the painting to the Giocondo family, and later it is believed he left it in his will to his favored apprentice Salaì. It had been believed to have been painted between 1503 and 1506; however, Leonardo may have continued working on it as late as 1517. It was acquired by King Francis I of France and is now the property of the French Republic itself, on permanent display at the Louvre, Paris since 1797.The Mona Lisa is one of the most valuable paintings in the world. It holds the Guinness World Record for the highest known insurance valuation in history at US$100 million in 1962 (equivalent to $660 million in 2019).


== Title and subject ==

The title of the painting, which is known in English as Mona Lisa, comes from a description by Renaissance art historian Giorgio Vasari, who wrote "Leonardo undertook to paint, for Francesco del Giocondo, the portrait of Mona Lisa, his wife." Mona in Italian is a polite form of address originating as ma donna – similar to Ma'am, Madam, or my lady in English. This became madonna, and its contraction mona. The title of the painting, though traditionally spelled Mona (as used by Vasari), is also commonly spelled in modern Italian as Monna Lisa (mona being a vulgarity in some Italian dialects), but this is rare in English.Vasari's account of the Mona Lisa comes from his biography of Leonardo published in 1550, 31 years after the artist's death.

Mona Lisa

Mona_Lisa

Armadillos (meaning "little armored ones" in Spanish) are New World placental mammals in the order Cingulata. The Chlamyphoridae and Dasypodidae are the only surviving families in the order, which is part of the superorder Xenarthra, along with the anteaters and sloths. Nine extinct genera and 21 extant species of armadillo have been described, some of which are distinguished by the number of bands on their armor. All species are native to the Americas, where they inhabit a variety of different environments. 
Armadillos are characterized by a leathery armor shell and long sharp claws for digging. They have short legs, but can move quite quickly. The average length of an armadillo is about 75 cm (30 in), including tail. The giant armadillo grows up to 150 cm (59 in) and weighs up to 54 kg (119 lb), while the pink fairy armadillo has a length of only 13–15 cm (5–6 in). When threatened by a predator, Tolypeutes species frequently roll up into a ball (these being the only species of Armadillo capable of such).


== Etymology ==
The word armadillo means "little armored one" in Spanish.

Armadillo

The foot (plural: feet) is an anatomical structure found in many vertebrates. It is the terminal portion of a limb  which bears weight and allows locomotion. In many animals with feet, the foot is a separate organ at the terminal part of the leg made up of one or more segments or bones, generally including claws or nails.


== Etymology ==
The word "foot", in the sense of meaning the "terminal part of the leg of a vertebrate animal" comes from "Old English fot "foot," from Proto-Germanic *fot (source also of Old Frisian fot, Old Saxon fot, Old Norse fotr, Danish fod, Swedish fot, Dutch voet, Old High German fuoz, German Fuß, Gothic fotus "foot"), from PIE root *ped- "foot."
The "plural form feet is an instance of i-mutation."


== Structure ==

The human foot is a strong and complex mechanical structure containing 26 bones, 33 joints (20 of which are actively articulated), and more than a hundred muscles, tendons, and ligaments. The joints of the foot are the ankle and subtalar joint and the interphalangeal articulations of the foot. An anthropometric study of 1197 North American adult Caucasian males (mean age 35.5 years) found that a man's foot length was 26.3 cm with a standard deviation of 1.2 cm.The foot can be subdivided into the hindfoot, the midfoot, and the forefoot:
The hindfoot is composed of the talus (or ankle bone) and the calcaneus (or heel bone). The two long bones of the lower leg, the tibia and fibula, are connected to the top of the talus to form the ankle. Connected to the talus at the subtalar joint, the calcaneus, the largest bone of the foot, is cushioned underneath by a layer of fat.The five irregular bones of the midfoot, the cuboid, navicular, and three cuneiform bones, form the arches of the foot which serves as a shock absorber. The midfoot is connected to the hind- and fore-foot by muscles and the plantar fascia.The forefoot is composed of five toes and the corresponding five proximal long bones forming the metatarsus. Similar to the fingers of the hand, the bones of the toes are called phalanges and the big toe has two phalanges while the other four toes have three phalanges each.

Foot

Shanghai  (Chinese: 上海, Shanghainese pronunciation [zɑ̃̀.hɛ́]  (listen), Standard Mandarin pronunciation: [ʂâŋ.xài] (listen)) is one of the four direct-administered municipalities of the People's Republic of China, governed by the State Council. The city is located on the southern estuary of the Yangtze River, with the Huangpu River flowing through it. With a population of 24.28 million as of 2019, it is the most populous urban area in China and the most populous city proper in the world. Shanghai is a global center for finance, research, technology, manufacturing, and transportation, and the Port of Shanghai is the world's busiest container port.
Originally a fishing village and market town, Shanghai grew in importance in the 19th century due to both domestic and foreign trade and its favorable port location. The city was one of five treaty ports forced open to European trade after the First Opium War. The Shanghai International Settlement and the French Concession were subsequently established. The city then flourished, becoming a primary commercial and financial hub of Asia in the 1930s. During the Second Sino-Japanese War, the city was the site of the major Battle of Shanghai. After the war, with the CPC takeover of mainland China in 1949, trade was limited to other socialist countries and the city's global influence declined.

Shanghai

A cold-stimulus headache, colloquially known as an ice-cream headache or brain freeze, is a form of brief pain or headache commonly associated with consumption (particularly quick consumption) of cold beverages or foods such as ice cream and ice pops. It is caused by having something cold touch the roof of the mouth, and is believed to result from a nerve response causing rapid constriction and swelling of blood vessels or a "referring" of pain from the roof of the mouth to the head. The rate of intake for cold foods has been studied as a contributing factor. A cold-stimulus headache is distinct from dentin hypersensitivity, a type of dental pain that can occur under similar circumstances.
Cats and other animals have been observed experiencing a similar reaction when presented with a similar stimulus.


== Terminology ==
The term ice-cream headache has been in use since at least January 31, 1937, contained in a journal entry by Rebecca Timbres published in the 1939 book We Didn't Ask Utopia: A Quaker Family in Soviet Russia. The first published use of the term brain freeze, in the sense of a cold-stimulus headache, was in 1991. 7-Eleven has trademarked the term.


== Cause and frequency ==
A cold-stimulus headache is the direct result of the rapid cooling and rewarming of the capillaries in the sinuses leading to periods of vasoconstriction and vasodilation. A similar but painless blood vessel response causes the face to appear "flushed" after being outside on a cold day.

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