1935
Technology
Britain
Radar
Robert Watson-Watt demonstrated aircraft detection by radio echo.
Why it mattered
Decisive in war, and now essential to aviation and weather.
Modern Era
1935
2 recorded milestones at this point in the record.
1935
Technology
United States
Nylon and synthetic fibre
Wallace Carothers' team at DuPont polymerised the first fully synthetic fibre.
Why it mattered
Began the age of engineered materials in everyday life.
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