People who type a lot, such as those who use typewriters, use the shift key instead of the caps lock or shift lock keys unless they have to type many capital letters in a row. But there is also a neat trick you can do with the caps lock and shift keys: when caps lock is on, you can hold the shift key while typing and what you type will be in lowercase letters instead of capitals. This can be done on some computers, such as those running Microsoft Windows computers.
Not all computers have a caps lock key. Some of those that don't have been made for the One Laptop Per Child program.
Page Up and Page Down keys
The Page Up and Page Down keys are two computer keys that you press to either scroll up or scroll down on documents. The page up and page down scrolling distance sometimes varies depending on which documents you are reading. If the page up of page down key is pressed together with the shift key it will highlight all the text. The page up and page down keys are sometimes called PgUp or PgDn and they are located on the right of the keyboard with page up on top and page down on the bottom.
Scroll lock
Scroll lock (or ScrLk) is the name of a key on a computer keyboard that was meant to lock all scrolling methods. The scroll lock key is rarely used and only came about because the original IBM PC keyboard had it. It was supposed to change how the arrow keys work. For example, when the scroll lock mode was turned on, the arrow keys would scroll the contents of a text window instead of moving the cursor. Today, the key doesn't do anything in most programs, and as a result, many keyboards today, especially those on laptops and mobile devices, do not have the scroll lock key.
Organ donation
Organ donation means that an organ is transferred from the body of one person to that of another person. This is done by a type of surgery called an organ transplant. The donor, the person whose organ is used, may be alive or recently dead. The person receiving the organ is called the recipient.
Organs that can be transplanted are the heart, kidney, liver, lung, pancreas, intestine, skin, and thymus.
Tissues that can be transplanted include bone, muscle, tendon, cornea, heart, and veins.
The most commonly transplanted organs worldwide is the kidney, followed closely by the liver, the heart. The most commonly transplanted tissues are the cornea, bones, and muscle.
There is a great demand for organs and tissues. Donors must give permission. Iran is the only country regulating donors selling one of their kidneys for payment, and there is no waiting list. There is a field of medicine called "regenerative medicine" has made scientific advances to grow or create organs or tissues from stem cells.
Karakoram Highway
The Karakoram Highway is a road that connects China and Pakistan. It runs through the Karakoram range. It is about 1300 km long, and runs from Kashgar in China, to Hasan Abdal in Pakistan. Because it runs through the mountains, it is also a popular tourist attraction.
Assassination of John F. Kennedy
John F. Kennedy was the 35th President of the United States. He was killed in Dealey Plaza, Dallas, Texas, on Friday, November 22, 1963. This happened while he was traveling in a Presidential motorcade with his wife Jacqueline, the Governor of Texas John Connally, and the governor's wife Nellie.
As the car drove into Dealey Plaza, shots were fired. Kennedy was shot once in the throat, and once in the head. It happened at 12:30 p.m. Central Standard Time (18:30 UTC). The motorcade drove to Parkland Memorial Hospital away. At 1:00 p.m., Kennedy was pronounced dead.
Lee Harvey Oswald was the main suspect in the murder. He was arrested on the same day for the murder of a policeman, J. D. Tippit. He was charged with both murders later that night. Oswald denied shooting anyone. Oswald was shot by Jack Ruby two days later, on November 24. This was when Oswald was being moved from the police station to a jail. He died in Parkland Hospital.
The event left a lasting impression on many worldwide. As with the December 7, 1941 attack on Pearl Harbor before it and the September 11 attacks after it, asking "Where were you when you heard about President Kennedy's assassination" would become a common topic of discussion.
An investigation into what happened was done by the Warren Commission in 1963–1964. It took 10 months. The commission decided that Oswald was the only person involved, and he had fired three shots from the window of a warehouse on the corner of Dealey Plaza. No one else was involved. The man who murdered Oswald, Jack Ruby, was also said to have acted alone.
Most people at the time believed this was true. However, other alternative theories as to what could have happened have developed. Surveys from 1966 to 2004 found that as many as 80 percent of Americans have suspected that there was a plot or cover-up.
Another investigation was done by the United States House Select Committee on Assassinations (HSCA) in 1979. They found that President John F. Kennedy was probably killed as a result of a conspiracy (a secret plot). The HSCA found both the original FBI investigation and the Warren Commission Report to have big mistakes. They agree with the Commission that Oswald fired all the shots. But they say that there were at least four shots fired. They also say that it was very likely that two gunmen fired at the President. No gunmen or groups involved in the conspiracy were pointed out by the committee. They said that the CIA, the Soviet Union, organized crime and several other groups were not involved.
The assassination is still the subject of a lot of debate. There are a lot of conspiracy theories. Some researchers have suggested that Oswald was not the shooter. Others have suggested that he conspired with others to kill the president. Most of these theories accuse criminal groups, the military–industrial complex, the government of Cuba, the KGB, or the CIA. Lyndon Johnson, George H. W. Bush and Sam Giancana are among those accused. That mob boss Sam Giancana was responsible is supported by the account of his brother and nephew. Only one person was ever put on trial: Clay Shaw, but he was found not guilty.
Some have also argued that the gunshots were fired so quickly there must have been more than one assassin shooting at the President. This could be supported by the fact that most witnesses said that the second and third shots were fired closer together.
Some believe that the bullets could not have hit Kennedy in the place they hit him if they had really been fired from the warehouse. Many of the workers at Parkland Hospital reported that a large portion of the back of the President's head appeared to have been blown out. This may suggest that he had been hit from the front.
Renault 25
The Renault 25 was a car made by Renault. It replaced the Renault 20 in 1983, and was replaced by the Renault Safrane in 1992.
Motorcade
A motorcade (or convoy, carcade, autocade) is a number of vehicles driving in the same direction on official business.
Motorcades can be used to transport a very important person (VIP), usually a political figure. Such a motorcade is usually accompanied by police cars and other protection. This is to make sure the people in the motorcade are safe. For instance, motorcades for presidents often have four to six armoured cars, with police motorcycles and cars going in front and behind.
Depending on the size of the motorcade and who it is carrying, streets may be completely blocked off so no-one else can use them. This is common for the security of heads of state or government.
Motorcades can be used as protests and demonstrations. A large, organised, group of vehicles will travel a busy route at very slow speed. They do this to deliberately cause traffic disruption. This is often in relation to protest groups that have access to many large vehicles, such as truckers and farmers.