1. Believe It Or Not! Believe It Or Not! Inventions That Have Changed our Lives

2. What invention do you think this diagram shows? Why do you think that? What invention do you think this diagram shows? Why do you think that? When do you think this invention was made? Why do you think that? When do you think this invention was made? Why do you think that? Do you think an invention like this exists today? Do you think an invention like this exists today?

3. This is a U.S. Navy helicopter capable of carrying heavy loads. The first helicopter that could carry a person was designed and flown by Paul Cornu in 1907. This is a U.S. Navy helicopter capable of carrying heavy loads. The first helicopter that could carry a person was designed and flown by Paul Cornu in 1907.

4. What do you think this invention is? Why do you think that? What do you think this invention is? Why do you think that? When do you think this invention was made? Why do you think that? When do you think this invention was made? Why do you think that?

5. This drawing shows a modern army tank. Tanks were first used during World War One in Cambrai, France in 1917. This drawing shows a modern army tank. Tanks were first used during World War One in Cambrai, France in 1917.

6. What invention do you think this is a sketch of? Why do you think that? What invention do you think this is a sketch of? Why do you think that? Does an invention like this exist today? What do you think it might look like? Does an invention like this exist today? What do you think it might look like?

7. With its landing gear down, this U.S. Navy plane is ready to take off or land. Once the plane is in the air, the landing gear folds up to give the plane a more efficient, streamlined shape. The first airplane with retractable landing gear was built in 1933. With its landing gear down, this U.S. Navy plane is ready to take off or land. Once the plane is in the air, the landing gear folds up to give the plane a more efficient, streamlined shape. The first airplane with retractable landing gear was built in 1933.

8. What do you think this invention did? Why do you think that? What do you think this invention did? Why do you think that? Does an invention like this exist today? What do you think it might look like? Does an invention like this exist today? What do you think it might look like?

9. Modern SCUBA divers can swim freely underwater while breathing compressed air from tanks on their backs. Jacques-Yves Cousteau and Emile Gagnon invented this self-contained breathing apparatus in 1943

10. These ideas were described and sketched by Leonardo da Vinci hundreds of years before their time. Few of these were built and tested during his life. Centuries passed before other inventors came up with similar ideas and brought them to practical use. These ideas were described and sketched by Leonardo da Vinci hundreds of years before their time. Few of these were built and tested during his life. Centuries passed before other inventors came up with similar ideas and brought them to practical use.