Environmental Sciences, asked by vaishvaishnav7028, 1 year ago

Which of the invention is the most recent and came to be adopted around the start of 21st century?

Answers

Answered by shaikhasgharabbas786
0

Date Invention or discovery Articles on Explain that stuff

Prehistory  

1860s Fire extinguishers are invented. Fire extinguisher

1861 Elisha Graves Otis invents the elevator with built-in safety brake. Elevators

1867 Joseph Monier invents reinforced concrete. Reinforced concrete

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