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Helen Pearl Randolph

Female 1887 - 1888  (1 year)


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Timeline



 
 
 




   Date  Event(s)
1887 
  • 1887: German, Heinrich Hertz invents radar.
  • 1887: Emile Berliner invents the gramophone.
  • 1887: F.E. Muller and Adolph Fick invent the first wearable contact lenses.
1888 
  • 1888: John Boyd Dunlop patents a commercially successful pneumatic tire.
  • 1888: Nikola Tesla invents the AC motor and transformer.
  • 1888: Marvin Stone patents the spiral winding process to manufacture the first paper drinking straws.