There were fourteen claimants; John Balliol and Robert de Brus (the grandfather of the famous Robert the Bruce) had the best cases. The competitors agreed to hand over the realm to Edward until a decision was made. John Balliol was chosen in 1292.
Edward continued to push his claim as overlord of Scotland. He interferred in some of the legal affairs of Scotland, and insisted the Scots provided military service in his army. This caused the Scots to make an alliance with France. They then attacked Carlisle.
Edward responded by invading Scotland in 1296 and taking the town of Berwick in a particularly bloody attack. At the Battle of Dunbar, Scottish resistance was effectively crushed. Edward confiscated the Stone of Destiny – the Scottish coronation stone– and brought it to Westminster, deposed Balliol and placed him in the Tower of London, and installed Englishmen to govern the country. The campaign had been very successful, but the English triumph would only be temporary.
Although the Scottish conflict seemed settled in 1296, it was started again by William Wallace, who came from one of the notable families. Wallace was a warlord rather than a politician, and soon started a rebellion. He defeated a large English force at Stirling Bridge in 1297 while Edward was in Flanders. In 1298 Edward defeated Wallace at the Battle of Falkirk. After that the Scots avoided open battle in favour of raiding England with small groups.
Edward's next move was political: in 1303 a peace agreement was made between England and France, breaking up the Franco-Scottish alliance. Robert de Brus and most of the other nobles pledged allegiance to Edward. Wallace was betrayed and handed to the English. He was publicly executed.
The situation changed again, in 1306, when de Brus murdered his rival John Comyn and had himself crowned King of Scotland by Isobel, sister of the Earl of Buchan. Edward, in ill health, sent armies north under other commanders. Brus was beaten at the Battle of Methven in June 1306. After the battle, Edward followed with brutal suppression of the allies of de Brus. In response this fueled more rebellions. This conflict was still in progress in 1307 when Edward, now an elderly man, led his final campaign into Scotland before dying at the border city of Burgh-by-sands at age 68, leading to the succession of the Prince of Wales as Edward II of England.
Eleanor of Castile died on 28 November 1290. Unusual for arranged marriages, the couple actually loved each other. Edward was deeply affected by her death. He erected twelve Eleanor crosses, one at each place where her funeral cortège (procession) stopped for the night. As part of the peace accord between England and France in 1294, it was agreed that Edward should marry the French princess Margaret. The marriage took place in 1299.
Edward and Eleanor had at least fourteen children, perhaps as many as sixteen. Of these, five daughters survived into adulthood, but only one boy did the same– his son and heir Edward, Prince of Wales.
Edward was concerned with his son's failure to live up to expectations, and at one point exiled the prince's favourite Piers Gaveston. Edward may have known his son was bisexual but he did not throw Gaveston from the castle battlements as shown in "Braveheart".
Cell nucleus
The cell nucleus (plural: cell nuclei) contains the cell's genes and controls the cell's growth and reproduction. It has a double layered nuclear membrane round it. The nucleus is usually the most prominent organelle in a cell. The nucleus is small and round, and works as the cell's control center. It contains chromosomes which house the DNA. The human body contains billions of cells, most of which have a nucleus.
All eukaryote organisms have nuclei in their cells, even the many eukaryotes that are single-celled. Bacteria and Archaea, which are prokaryotes, are single-celled organisms of a different type and do not have nuclei. Cell nuclei were first found by Antonie van Leeuwenhoek in the 17th century.
The nucleus has a membrane around it but the things inside it do not. Inside it are many proteins, RNA molecules, chromosomes and the nucleolus. In the nucleolus ribosomes are put together. After being produced in the nucleolus, ribosomes are exported to the cytoplasm where they translate mRNA into proteins.
When a cell is dividing or preparing to divide, the chromosomes become visible with a light microscope. At other times when the chromosomes are not visible, the nucleolus will be visible.
Large molecules cannot get through the double-layer nuclear membrane. However, nuclear pores exist. They control the movement of molecules across the membrane. The pores cross both nuclear membranes, providing a channel. The larger molecules are actively transported by carrier proteins, and there is free movement of small molecules and ions. Movement of large molecules such as proteins and RNA through the pores is required for both gene expression and the maintenance of chromosomes.
Within the nucleus is a structure called a nucleolus. It is made at a nucleolus organizer region (NOR). This is a chromosomal region around which the nucleolus forms. Inside the nucleolus ribosomes are made. These are exported through the nuclear pore complexes to the cytoplasm. There they work to build proteins. They become attached to the endoplasmic reticulum if they are making membrane proteins.
Scotland Yard
Scotland Yard is the headquarters of the Metropolitan Police in London. This police force is responsible for the security in Greater London.
New Scotland Yard is in a 20-story office block on Broadway and Victoria Street in Westminster, about 450 metres away from the Houses of Parliament. The famous rotating sign, which is seen on television and in films, is outside the main doors on Broadway.
Founded on 29 September 1829, on a street of Whitehall, Scotland Yard was called "New Scotland Yard" when moved, in November 1890, to the Victoria Embankment, beside the Ministry of Defence. In 1967, New Scotland Yard moved to the present 20-story building at 10 Broadway.
Scotland Yard got its name by its previous location which was on Great Scotland Yard. As the Metropolitan police grew more famous, people started referring to the house as Scotland Yard.
Antimony
Antimony is a chemical element. It has the chemical symbol Sb. The symbol Sb is from the Latin name of 'stibium' for the element. It has the atomic number 51. Its atomic mass is 121.8. It is a blue-gray element that is somewhat toxic.
Antimony has four allotropes. The common allotrope of antimony is a blue-white metalloid. It looks black when powdered. It is brittle, soft, and shiny. Yellow and black antimony are unstable nonmetals. Yellow antimony is only found at very cold temperatures. It is made by oxidation of stibine. It turns into black antimony when light is shined on it or when it is warmer. Black antimony is normally made by heating metallic antimony until it boils and then cooling the vapors very quickly. It can ignite spontaneously (without any ignition source like a spark or a flame). It also corrodes easily. There is another explosive form of antimony that is made by electrolysis of antimony trichloride. This antimony explodes when changing into the metallic form. There is no chemical reaction; the atoms in the antimony crystal are rearranging themselves. When antimony is talked about it normally means the blue-white metalloid form, since it is most common.
Antimony is found as two stable (not radioactive) isotopes naturally. Sb- 123 and Sb-121
Antimony is a rather unreactive element. It does not dissolve in acids easily. It can dissolve in oxidizing acids like nitric or sulfuric acid. It does not corrode easily in air, although the black allotrope can corrode. Antimony burns in air to make antimony trioxide. In excess air, it burns to antimony tetroxide.