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Flat bottom paper bag making machine, by Margaret Eloise Knight.
It revolutionized the manufacture of paper bags, allowing for more efficient and economical production.
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Phonograph, by Thomas Alva Edison.
The phonograph was the first common apparatus for recording and reproducing sound. It marked the birth of a new form of entertainment and an entirely new field of business that fueled the demand for the new invention.
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Photophone, by Alexander Graham Bell and Charles Summer Tainter.
The photophone was a device that allowed the transmission of sound by means of an emission of light. Subsequently, this invention served as the basis for the development of communications using fiber optics and lasers.
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Fire escape, by Anna Connelly.
She was the inventor of the predecessor of the modern outdoor fire escape; her invention saved lives, causing it to become a safety component in modern buildings.
https://th.bing.com/th/id/OIP.l2LYno50chW8uos-gV6ECwHaLv?rs=1&pid=ImgDetMain -
Dishwasher, by Josephine Cochrane.
The mechanical dishwasher hold dishes securely in a rack while the pressure of a water sprayer cleaned them. It ended sink slavery by automating dishwashing.
https://i.pinimg.com/736x/06/ff/dd/06ffdd65d2af043702b1f88091f541a3.jpg -
Light bulb, by Thomas Alva Edison.
The light bulb improved the conditions in which the people worked, lighting homes and cities.
https://www.bulbs.com/images/resource_section/edison-bulb.jpg -
Car heating system, by Margaret A. Wilcox.
Her invention was to channel air directly from the engine to provide heat to the occupants of the vehicle and thus avoid the uncomfortable cold temperatures of winter. It laid the foundation for the development of the modern car heater we use today.
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One-handed syringe, by Letitia Mumford Geer.
The goal that led Geer to invent this one-handed syringe was "to provide a tool that would allow her to inject the contents without the help of an assistant", since those used up to that time were more rudimentary and required the use of both hands. The invention facilitated both the injection of drugs or anesthetics into the body, and the extraction of humors for analysis.
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Automatic windshield wipers, by Mary Anderson.
It improved drivers' visibility during rain or snow. Her invention has been instrumental in road safety and accident prevention.
https://digging-history.com/wp-content/uploads/2013/12/mary_anderson_patent.jpg -
The airplane, by Wilbur and Orville Wright.
The airplane helped make the transportation of goods faster and more efficient. Later on, it also allowed people to travel greater distances in shorter periods of time.
https://quieninvento.org/wp-content/uploads/2013/07/Primeras-ilustraciones-retro-m%C3%A1quina-voladora.jpg
