William Harvey is famous for his idea on blood being pumped around the body by the heart. He was the first to describe correctly and in detail the circulation and its properties. A few men knew about the lesser circulation of the blood through the lungs, but their work was lost. One 16th century work on theology, entitled "Cristianismi restitutio", was written by Miguel Serveto. After he had been burnt at the stake for heresy (by Calvin), his book was destroyed. Three copies survived. A century and a half later, long after Harvey, someone noticed he had said something about the blood circulating.
Harvey announced his discoveries about the circulatory system in 1616 during a series of lectures (his lecture notes still exist). He wrote a book ("Exercitatio Anatomica de Motu Cordis et sanguinis in Animalibus") about it in 1628. He said that blood was pumped around the body in a closed system. Blood was pumped by the heart through the body before coming back to the heart to repeat the process. This went against what was believed at the time to be true.
The Roman doctor, Galen believed that there were two systems in the body dealing with blood. It was thought at the time that the dark red blood in veins came from the liver and the bright red blood in arteries came from the heart. It was believed that the liver and heart made the blood and it was used up by the body parts it was pumped to.
Harvey's ideas came from dissecting human bodies. Harvey found that the liver would have to make 540 pounds of blood every hour for Galen to be right. This showed him that the blood was not being used up. It was being reused by the body. He said blood flowed through the heart in two loops. One loop went to the lungs and got oxygen. The other loop went to the organs and body tissue giving them the oxygen. He said the heart was just a pump that pumped blood around the body.
Harvey made another great discovery. He said (in Latin) "Every living thing comes from an egg". At that time it was not known that mammals came from eggs. It was not known until Karl Ernst von Baer discovered the eggs of mammals in 1827. The fusion of sperm with egg was first seen by Oskar Hertwig in 1876.
Zoey 101
Zoey 101 is an American television series. It was on Nickelodeon from 9 January 2005 until 2 May 2008. It is about on the lives of teenagers at a boarding school, Pacific Coast Academy (PCA). The main character is Zoey Brooks, played by Jamie Lynn Spears. The series was created by Dan Schneider. It was nominated for an "Outstanding Children's Program" Emmy Award in 2005. "Zoey 101" was the most expensive production ever for Nickelodeon series. It was shot completely on location in Malibu. It was also Nickelodeon's best performance for a series premiere in almost eight years. However, many critics have made negative comments about the show. Jamie Lynn Spears has been playing Zoey for 3 years from 2005 till 2008.
Zoey Brooks goes to a once all-boys boarding school in California, where she must fit in, even though she is a girl. The series focuses on normal problems that a teenage girl may have to deal with. Zoey has two best friends called Lola and Quinn.
Several video games based on the television series were developed by THQ. They were published by Barking Lizards.
The original was released on 2 March 2007 for Gameboy Advance. Players play mini-games in trios for three semesters (levels), with a final game at the end. Players must successfully complete each mini-game, then a dare, and then a challenge. Dares and challenges are randomly chosen from three games. Players can choose to play mini-games freely in the main menu. Mini-games can only be unlocked in story mode. The game received negative reviews from sites such as Nintendo World Report and Common Sense. Game Rankings had a percent of 40% based on 2 reviews.
"Zoey 101: Field Trip Fiasco" was released for Nintendo DS. It was released in the U.S. on September 11, 2007. The plot involves Zoey wanting to do a documentary movie about the local national park. The player controls Zoey. The player has to go around the Pacific Coast Academy delivering things to people, or collect objects scattered around the school before time runs out. A map can be pulled out to help. After finishing fetch quests, the player plays a Minigame. Minigames require Scribbling on the touch screen to hose off cars or picking up Frisbees. Minigames last about 2 minutes. This game also received bad reviews. Metacritic had a score of 31/100 and Game Rankings had a score of 41.25% both based on 4 critics.
Velocisaurus
Velocisaurus was a theropod dinosaur related to "Ceratosaurus". Its remains were found in Patagonia, in strata from the Cretaceous period.
This animal is known only from its leg and feet bones. "Velocisaurus" was probably around 1.2 meters long (4 ft). The foot is unique in that the middle (third) metatarsal (foot bone) was the main weight-bearing element. Its upper end has thickened and the shafts of the adjoining second and fourth metatarsals have thinned considerably. Such a condition is unknown for other theropods, including birds, but a similar set-up occurred in three-toed horses (like "Mesohippus"). José Bonaparte explained it as an adaptation for a cursorial (running) lifestyle. He suggested that "Velocisaurus" was itself an omnivore, because the sole claw found, of the fourth toe, was not curved, but relatively straight.
Valdosaurus
Valdosaurus ("Weald Lizard") is a type of dinosaur. It walked on two legs and ate plants. It was found on the Isle of Wight and other places in England. It lived during the Lower Cretaceous.
It is part of the Dryosauridae family. It is related to the Iguanodonts.
Irish Potato Famine
The Great Famine, Great Hunger, or Great Famine is the name given to the famine in Ireland in the years 1845-1852. Outside Ireland, it is usually called the Irish Potato Famine. The famine was caused by "the potato blight", a fungus-like organism which quickly destroyed the potatoes in Ireland, and throughout Europe. The effect was particularly bad in Ireland because potatoes were the staple food for most Irish people at the time.
It is believed that between 1 million to 1.5 million people died in the three years from 1846 to 1849 because of hunger or disease. Another million became refugees because of the famine. Many people who left Ireland moved to Great Britain, (mostly to the nearby town of Liverpool), the United States, Canada and Australia.
In Ireland this time is referred to as "the starvation". The potato was the only crop affected, yet Ireland continued to produce corn, wheat, barley, and beef. However, the mostly English landlords made a bigger profit by selling these food products elsewhere.
By the late 17th century, potatoes had become common as a supplementary rather than a major food. The diet was mainly around butter, milk, and grain products. Potato became a base food of the poor, especially in winter. The lack of genetic variability among the potato plants in Ireland caused the emergence of "Phytophthora infestans" which had devastating effects in Ireland. Another factor is that holdings were so small that no crop other than potatoes would be able to feed a family.
Starting in 1801, Ireland had been directly governed, under the Act of Union as part of the United Kingdom. In the 40 years after the union, British governments grappled with the problems of governing the country. One historian calculated that, between 1801 and 1845, there had been 114 commissions and 61 special committees enquiring into the state of Ireland. "Without exception their findings prophesied disaster. Ireland was on the verge of starvation, her population rapidly increasing, three-quarters of her labourers unemployed, housing conditions appalling and the standard of living unbelievably low". It was caused by monoculture because they only planted one main crop and let its disease infest all other potatoes in the Irish territory.
Wannanosaurus