Time since the first iron steamship crossed the English Channel

Time since the first iron steamship crossed the English Channel (200 y)

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If Time since the first iron steamship crossed the English Channel (200 y) was a standard unit ...

  • Time since first humans in Australia (50,000 y)...more would be 250 x Time since the first iron steamship crossed the English Channel
  • Time since earliest wheeled vehicles (4,000 y)...more would be 20 x Time since the first iron steamship crossed the English Channel
  • Time since the birth of Hero of Alexandria (2,012 y)...more would be 10 x Time since the first iron steamship crossed the English Channel
  • Time since the death of Shakespeare (404 y)...more would be 2 x Time since the first iron steamship crossed the English Channel
  • Time since the first passenger steam railway service (197 y)...more would be about as big as Time since the first iron steamship crossed the English Channel
  • Lifespan of human being (80 y)...more would be 2/5 of Time since the first iron steamship crossed the English Channel
  • Time since first Tesla Model S launched (10 y)...more would be 1/20 of Time since the first iron steamship crossed the English Channel
  • Lifespan of rat (2 y)...more would be 1/100 of Time since the first iron steamship crossed the English Channel

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