Time since first Boeing 747 entering service

Time since first Boeing 747 entering service (51 y)

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Time since first Boeing 747 entering service (51 y)

  • is 1/5000 of Time since the first modern humans (250,000 y)...more
  • is 1/1000 of Time since first humans in Australia (50,000 y)...more
  • is 1/100 of Age of oldest wooden wheel (5,150 y)...more
  • is 1/100 of Time since building of Stonehenge (5,120 y)...more
  • is 1/100 of Time since the earliest writing (5,100 y)...more
  • is 1/50 of Time since the birth of Pythagoras (2,591 y)...more
  • is 1/40 of Time since the birth of Hero of Alexandria (2,011 y)...more
  • is 1/20 of Time since start of building of Great Zimbabwe (1,000 y)...more
  • is 1/5 of Time since the birth of Joseph Fourier (253 y)...more
  • is 1/4 of Time since the birth of Ada Lovelace (206 y)...more
  • is 1/4 of Time since the birth of mathematician Maria Gaetana Agnesi (203 y)...more
  • is 1/2 of Time since the birth of chemist Rosalind Franklin (101 y)...more
  • is about as big as Time since the first human walked on the moon (52 y)...more
  • is about as big as Time since first email sent (50 y)...more
  • is about as big as Time since the launch of Intel's first microprocessor, the 4004 (50 y)...more
  • is 2 x One average human generation (25 y)...more
  • is 26 x Lifespan of rat (2 y)...more
  • is 50 x Period of Earth's orbit (1 y)...more

If this was a standard unit ...