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The zigzag sewing machine by Helen Blanchard
Helen Blanchard's sewing machine improved society by increasing efficiency in clothing production, enhancing the quality of garments, reducing production time, and generating employment, for example -
The telephone by Alexander Graham Bell
It allowed us to communicate with people far away -
The light bulb by Thomas Alva Edison
It allowed people to see at night with equipment that was much safer than kerosene lamps -
The cash register by James Ritty
It required an employee to enter a transaction on the register and eventually hit the total key, which would released the cash drawer -
The life raft by María Beaslet
It has improved especially in terms of safety and survival in emergency situations in aquatic environments -
The first practical diswasher by Josephine Cochrane
it has significantly contributed to time and energy savings as well as improved hygiene in homes -
The radio by Guglielmo Marconi
Radio brought fame to many musicians and provided an affordable form of entertainment -
The windshield wiper
Her contribution has had a significant impact on safety and comfort in driving: improvement of visibility, driving safety, and reduction of accidents, for example -
The airplane by brothers Orville and Wilbur Wright
Boosted our power of movement, but also enhanced our vision: We gained the ability to see the Earth from above -
The coffee filter by Melitta Bentz
It has improved especially in terms of coffee preparation and convenience: simplification of the preparation process, improvement of coffee flavor, hygiene and cleanliness, popularization of home coffee consumption, and the development of coffee filter industries