Wallace & Gromit - The Wrong Trousers

Wallace is a great inventor. Pay attention to all the things that appear in this video and comment (up to 5'). Do you think Walace's inventions are useful?

Now put these inventions in chronological order. Comment together and reach a majority decision. 

braille

light bulb

the Internet

telephone

paper

thermometer

refrigerator

wheel

printing

microscope