Time since the birth of Hero of Alexandria

Time since the birth of Hero of Alexandria (2,009 y)

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Neat Ratios ...

Time since the birth of Hero of Alexandria (2,009 y)

  • is 1/25 of Time since first humans in Australia (50,000 y)...more
  • is 2/5 of Time since building of Stonehenge (5,120 y)...more
  • is 2/5 of Time since the earliest writing (5,100 y)...more
  • is 1/2 of Time since earliest wheeled vehicles (4,000 y)...more
  • is 2 x Time since start of building of Great Zimbabwe (1,000 y)...more
  • is 5 x Time since the death of Shakespeare (403 y)...more
  • is 10 x Time since the birth of Ada Lovelace (204 y)...more
  • is 10 x Time since the birth of mathematician Maria Gaetana Agnesi (201 y)...more
  • is 10 x Time since the first iron steamship crossed the English Channel (197 y)...more
  • is 20 x Time since the birth of chemist Rosalind Franklin (99 y)...more
  • is 25 x Time since the first Volkswagen Beetle produced (81 y)...more
  • is 25 x Lifespan of human being (80 y)...more
  • is 40 x Time since the first man walked on the moon (50 y)...more
  • is 1000 x Lifespan of rat (2 y)...more
  • is 2000 x Period of Earth's orbit (1 y)...more

If this was a standard unit ...

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