1. What were they like and how have they changed? By: Brandi Mullis

2. Machine Guns Hiram Maxim invented the machine gun in 1884. Insert photo of Hiram Maxim here

3. Machine Guns The machine guns used during World War I took three people to shoot and stood on a large tripod. Machine guns now have a tripod built in and everyone has their own gun. Insert photo of WWI machine gun here Insert photo of modern machine gun here.

4. William Tritton was the man who created the British Mark I tank in 1916. Insert photo of William Tritton or Mark I tank here.

5. In World War I some tanks had two machine guns and some had six. It took three men to steer. It only went four miles per hour! Insert photo of Mark I tank here

6. The Abrams tank is used now. It goes 42 miles per hour. It has 1 cannon and three machine guns on board. There are four men on the tank. Insert photo of M1A1 Abrams tank here.

7. Cornelis Drebbel made the very first submarine in 1620. It was made of wood and leather..

8. The submarines used during WWI were 53.8 feet long. They had a top speed of 6 knots. They only had torpedoes on board.

9. Newer subs are about 337 feet long. They have a speed of around 28 knots. They have torpedoes and missile systems. They are called attack subs.

10. http://memory.loc.gov http://www.spartacus.schoolnet.co.uk http://plastickit.elleemmesho0p.com/index/html http://www.auburn.edu/student_info/trident/history/history.htm http://www.naval-technology.com/projects/la/