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The Escalator
The escalator is a prized invention that helps people move from one floor to the next in malls and subways. This invention is also very helpful for people with disabilities who cannot walk up the stairs as easily as others.
The first escalator was created as a novelty ride at Coney Island, a theme park in New York. -
The Bra
The inventor of the first modern day bra, Mary Phelps Jacob, wanted something more comfortable that was also supportive to wear under her dresses. Corsets were the style and wearing them everyday all the time was very straining on both the chest and backs of women. -
Frozen Food
Clarence Birdseye is first credited with the invention of flash freezing. While working in Canada Birdseye would fish for food and as he pulled them up out of the water they would freeze. He found that if he kept them frozen they would retain their taste months later when he rethawed them. The fact that they froze so quickly is what makes the taste remain for when they are thawed later. -
Penicillin
Alexander Fleming came home from a vacation and found mold growing on a petri dish, this mold prevented the staphylococcus bacteria from spreading and he used this to discover the antibiotic Penicillin. This led to the advancement of other antibiotics and helped reduce the amount of deaths due to infection. -
The Polaroid Camera
In 1937, Edwin H. Land created the company Polaroid which is best known for their instant film cameras.The camera uses a complex system of chemicals to instantly take and print the photo you've taken instead of having to process the photos in fluids. He first showed off the invention in 1947. -
Nylons
The invention of Nylons were not only for the use of women to replace silk hosiery, but it was also very beneficial in WWII. The material was used for parachutes and made into rope for airplane parts. -
Kitty Litter
Everyone loves a cat, but not everyone loves cleaning up after them. Edward Lowe worked for his father and started selling 5lbs bags of industrial absorbent which he called "Kitty Litter". -
The Video Tape Recorder
The VTR was invented to be able to playback recordings of videos and voice. It was invented by Charles Ginsburg. -
9.1.1.
The invention of the hotline 911 was invented in 1968 to provide a universal hotline in case of an emergency. This advancement is very crucial to the lives of many US citizens and is used every minute of every day.