Believe It Or Not!Believe It Or Not!

Inventions That Have Inventions That Have Changed our LivesChanged our Lives

• What invention do What invention do you think this you think this diagram shows? Why diagram shows? Why do you think that?do you think that?

• When do you think When do you think this invention was this invention was made? Why do you made? Why do you think that?think that?

• Do you think an Do you think an invention like this invention like this exists today? exists today?

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

• What do you think this invention is? Why What do you think this invention is? Why do you think that?do you think that?

• When do you think this invention was When do you think this invention was made? Why do you think that?made? Why do you think that?

• This drawing shows This drawing shows a modern army a modern army tank. Tanks were tank. Tanks were first used during first used during World War One in World War One in Cambrai, France in Cambrai, France in 1917.1917.

• What invention do you think this is a What invention do you think this is a sketch of? Why do you think that?sketch of? Why do you think that?

• Does an invention like this exist today? Does an invention like this exist today? What do you think it might look like?What do you think it might look like?

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

• What do you think this invention did? What do you think this invention did? Why do you think that?Why do you think that?

• Does an invention like this exist today? Does an invention like this exist today? What do you think it might look like?What do you think it might look like?

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

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