Sources for Fun Facts Calendar Project: Tanks and Guns

Tank is an armored combat vehicle.
CITATION: Smith, Robert Powell. "Tank." World Book Student. World Book, 2015. Web. 1 Dec. 2015.

Sherman tank was an armored combat vehicle used by the United States and its allies during World War II (1939-1945) and the Korean War (1950-1953).
CITATION: Bumgardner, Jake. "Sherman tank." World Book Student. World Book, 2015. Web. 1 Dec. 2015.

Gun is a weapon that fires a bullet, a shell, or some other projectile.
CITATION: Lussier, Frances M. "Gun." World Book Student. World Book, 2015. Web. 2 Dec. 2015.

You must be at least 17 to own a gun in the United Kingdom. Even then, it can be hard to get a license. In the United States, it is pretty east for an adult to get a gun since the Constitution gives people the right to bear arms. In the United Kingdom, guns are illegal unless they are antiques or you are using it to kill pests like rats. Gun owners in the U.K. need to prove that they will keep a gun safely. Learn about air guns, changes in the gun law, and the debate about gun control.
CITATION: Could I Own a Gun?. n.d. Web. 2 December 2015. http://news.bbc.co.uk/cbbcnews/hi/newsid_2350000/newsid_2357900/2357905.stm.

One of the most well known firearms used today is the machine gun. How Stuff Works takes you on a journey where you will explore the mechanisms that are used for the machine gun to be able to perform the function it does, that is fire hundreds of bullets per minute. The web site first provides you with a background that explains how typical firearms work so that you can fully understand the concept. Then through diagrams, photographs, and detailed explanations it explains the parts of machine guns and how they work together to perform.
CITATION: How Machine Guns Work. n.d. Web. 2 December 2015. http://science.howstuffworks.com/machine-gun.htm/printable.

You can read the history of the military tank at this website. It was first used by the British troops in World War I when they were fighting in France. People didn't think much of it at first. After the war, countries worked on their tanks and anti-tank warfare, and Hitler's troops were able to conquer Poland in less than a month at the beginning of World War II. There were special tanks for clearing mines and landing in the water. Tanks have become very useful when war is fought in the desert.
CITATION: Tank, Military. n.d. Web. 2 December 2015. http://www.factmonster.com/ce6/history/A0847801.html.

Although the design for an armored fighting vehicle was patented in 1872 by Joseph Hawker, what we know as tanks weren’t built or used until 1916 in World War. They were called “tanks” because the British didn’t want the Germans to know what they were building, so they told the workers that these vehicles would transport water. The shipping crates were labeled “tank,” and the name stuck. Some advantages of tanks include their ability to traverse over rough terrain, their continuous tracks that don't go flat, their speed, and their powerful weapons and thick armor.
CITATION: How Fast Can a Tank Move?. n.d. Web. 2 December 2015. http://wonderopolis.org/wonder/how-fast-can-a-tank-move.