venerdì 29 luglio 2016

goliath frogs in the world


The goliath frog (Conraua goliath) is the largest living frog on Earth. Specimens can grow up to 32 cm (12.6 in) in length from snout to vent, and weigh up to 3.25 kg (7.17 lb). This species has a relatively small habitat range in Cameroon and Equatorial Guinea. Its numbers are dwindling due to habitat destruction and its collection for food and the pet trade.



In a sample of 15 individuals, weights ranged between 600 and 3,250 g (1.32 and 7.17 lb), and snout-vent lengths were between 17 and 32 cm (6.7 and 12.6 in). Their eyes can be nearly 2.5 cm (0.98 in) in diameter. The conspicuous tympanum has a diameter of about 0.5 cm (0.20 in) and is separated from the eye by about 5 cm (2.0 in) in adults. The next largest extant anurans are the cane toad, about a third smaller than the goliath in the largest specimens, and the African bullfrog, which is just over half the size of the goliath. Goliath frog eggs and tadpoles are about the same size as other frogs despite its very large adult form.



A lateral fold extends from the eye to the posterior portion of the tympanum. Toes are fully webbed, with large interdigital membranes extending down to the toe tips. The second toe is the longest. The skin on the dorsum and on top of the limbs is granular. Dorsal coloration is green sienna, while the abdomen and ventral part of the limbs are yellow/orange. They have acute hearing but no vocal sac, and also lack nuptial pads.


mercoledì 27 luglio 2016

giant tornado in the world


Among the most violent known meteorological events are tornadoes. Each year, more than 2,000 tornadoes occur worldwide, with the vast majority occurring in the United States and Europe.In order to assess the intensity of these events, meteorologist Ted Fujita devised a method to estimate maximum winds within the storm based on damage caused; this became known as the Fujita scale. At the top end of the scale, which ranks from 0 to 5, are F5 tornadoes. These storms were estimated to have had winds in excess of 261 mph (420 km/h). Following two particularly devastating tornadoes in 1997 and 1999, engineers questioned the reliability of the scale. Ultimately, a new scale was devised that took into account 28 different damage indicators; this became known as the Enhanced Fujita scale. With building designs taken more into account, winds in an EF5 tornado were estimated to be in excess of 200 mph (320 km/h).



Since 1950, there have been 59 officially rated F5 and EF5 tornadoes in the United States and 1 F5 in Canada. Additionally, the works of tornado expert Thomas P. Grazulis revealed the existence of several dozen more between 1880 and 1995. Grazulis also put into question the ratings of several currently rated F5 tornadoes. Outside the United States and Canada, seven tornadoes have been rated F5: two each in France, Germany, and Italy and one in Russia. Several other tornadoes are also documented as possibly attaining this status.



Since structures are completely destroyed in both cases, the identification and assignment of scale between an EF4 tornado and an EF5 is often very difficult




lunedì 25 luglio 2016

huge rabbits in the world


The Flemish Giant is a breed of domestic rabbit (Oryctolagus cuniculus) known for its large size.



The Flemish Giant originated in Flanders. It was bred as early as the 16th century near the city of Ghent, Belgium. It is believed to have descended from a number of meat and fur breeds, possibly including the Steenkonijn (Stone Rabbit—referring to the old Belgian weight size of one stone or about 3.76 kg (8 lb 5 oz)) and the European "Patagonian" breed (now extinct). This "Patagonian" rabbit, a large breed that was once bred in Belgium and France, was not related to the Patagonian rabbit of Argentina (Sylvilagus brasiliensis), a separate wild species weighing less than two pounds (about 1 kg), nor the Patagonian hare (Dolichotis patagonum), a species in the cavy family of rodents that cannot interbreed with rabbits.Thomas Coatoam, in his Origins of the Flemish Giants, tells us, "The earliest authentic record of the Flemish Giant Rabbit occurred about the year 1860."

A sandy Flemish male napping next to a sable and white sheltie.



The first standards for the breed were written in 1893. The Flemish Giant is an ancestor of many rabbit breeds all over the world, one of which is the Belgian Hare,[1] imported into England in the mid 19th century. The Flemish Giant was exported from England and Belgium to America in the early 1890s to help improve the size of meat rabbits during the great "rabbit boom".



It received little attention until about 1910 where it started appearing at small livestock shows throughout the country. Today, it is one of the more popular breeds at rabbit shows because of its unusually large size and its varying colors. It is promoted by the National Federation of Flemish Giant Rabbit Breeders, which was formed in 1915. The Flemish Giant has many nicknames, first and foremost the "Gentle Giant" for its uniquely docile personality and also the "universal rabbit" for its varied purposes as pet, show, breeding, meat and fur animal.

lunedì 18 luglio 2016

giant tortoise in the world


Giant tortoises are characteristic reptiles that are found on two groups of tropical islands: the Aldabra Atoll in Seychelles and the Galapagos Islands in Ecuador (a population at the Mascarene Islands was exterminated by the 1900s) . These tortoises can weigh as much as 417 kg (919 lb) and can grow to be 1.3 m (4 ft 3 in) long. Giant tortoises originally made their way to islands from the mainland; for example, Aldabra Atoll and Mascarenes giant tortoises are related to Madagascar tortoises while Galapagos giant tortoises are related to Ecuador mainland tortoises. This phenomenon of excessive growth is known as islands gigantism or insular gigantism. It occurs when the size of the animals that are isolated on an islands increases dramatically in comparison to their mainland relatives. This is due to several factors such as relaxed predation pressure, competitive release, or as an adaptation to increased environmental fluctuations on islands.[1][2] These animals belong to an ancient group of reptiles, appearing about 250 million years ago. By the Upper Cretaceous, 70 or 80 million years ago, some had already become gigantic. About 1 million years ago tortoises reached the Galápagos Islands. Most of the gigantic species began to disappear about 100,000 years ago. Only 250 years ago there were at least 20 species and subspecies in islands of the Indian Ocean and 14 or 15 subspecies in the Galápagos Islands.




venerdì 15 luglio 2016

biggest ferris wheels in the world


List of Ferris wheels whose construction has been completed and which have opened to the public.





Fixed Ferris wheels are usually intended for permanent installation, as opposed to transportable wheels which are designed to be operated at multiple locations. Occasionally however, fixed wheels are also sometimes dismantled and relocated. Larger examples include the original Ferris Wheel, which operated at two sites in Chicago, Illinois, and a third in St. Louis, Missouri; Technocosmos/Technostar, which moved to Expoland, Osaka, after Expo '85, Tsukuba, Ibaraki, for which it was built, ended; and Cosmo Clock 21, which added 5 metres (16 ft) onto its original 107.5-metre (353 ft) height when erected for the second time at Minato Mirai 21, Yokohama, in 1999.





High Roller 167.6 (550) mt (ft)
Las
Vegas, Nevada
Singapore
Flyer
165 (541) mt (ft)
Marina
Centre, Downtown Core
Star
of Nanchang
160 (525) mt (ft)
Nanchang,
Jiangxi
London Eye 135 (443) mt (ft)
South
Bank, Lambeth, London
Orlando
Eye
122 (400) mt (ft)
Orlando, Florida
Changsha Ferris Wheel 120 (394) mt (ft)
Changsha,
Hunan
Melbourne
Star
120 (394) mt (ft)
Docklands,
Melbourne
Sky Dream Fukuoka 120 (394) mt (ft)
Evergreen
Marinoa, Fukuoka, Kyūshū
Suzhou Ferris Wheel 120 (394) mt (ft)
Suzhou,
Jiangsu
Tianjin
Eye
120 (394) mt (ft)
Yongle Bridge,
Tianjin
Zhengzhou Ferris Wheel 120 (394) mt (ft)
Century Amusement
Park, Henan
Diamond and Flower Ferris Wheel 117 (384) mt (ft)
Kasai
Rinkai Park, Tokyo, Honshū
Daikanransha 115 (377) mt (ft)
Palette
Town, Odaiba, Honshū
Star of Lake Tai 115 (377) mt (ft)
Lake
Tai, Wuxi, Jiangsu
Sun
Wheel[1]
115 (377) mt (ft)
Da Nang
Cosmo
Clock 21 (2nd installation)
112.5 (369) mt (ft)
Minato
Mirai 21, Yokohama, Honshū
Tempozan Ferris Wheel 112.5 (369) mt (ft)
Osaka,
Honshū
Harbin Ferris Wheel 110 (361) mt (ft)
Harbin,
Heilongjiang
Shanghai Ferris Wheel 108 (354) mt (ft)
Jinjiang
Action Park, Shanghai
Cosmo
Clock 21 (1st installation)
107.5 (353) mt (ft)
Minato
Mirai 21, Yokohama, Honshū
Grande Roue de Paris 100 (328) mt (ft)
Champ
de Mars, Paris
Space Eye 100 (328) mt (ft)
Space
World, Kitakyūshū, Kyūshū
Great
Wheel
94 (308) mt (ft)
Earls
Court, London
Aurora Wheel 90 (295) mt (ft)
Nagashima
Spa Land, Mie, Honshū
Eurowheel 90 (295) mt (ft)
Mirabilandia,
Ravenna
Sky Wheel 88 (289) mt (ft)
Janfusun
Fancyworld, Gukeng