Is That A Big Number?

If Time since the earliest writing (5,100 y) was a standard unit ...

Age of earliest stone hand axe (2.6 million y)...more would be 500 x Time since the earliest writing

Time since the end of the Neogene geologic period (2.58 million y)...more would be 500 x Time since the earliest writing

Time since the first modern humans (250,000 y)...more would be 50 x Time since the earliest writing

Time since first humans in Australia (50,000 y)...more would be 10 x Time since the earliest writing

Age of oldest wooden wheel (5,150 y)...more would be about as big as Time since the earliest writing

Time since building of Stonehenge (5,120 y)...more would be about as big as Time since the earliest writing

Time since the birth of Pythagoras (2,594 y)...more would be 1/2 of Time since the earliest writing

Time since the birth of Hero of Alexandria (2,014 y)...more would be 2/5 of Time since the earliest writing

Time since start of building of Great Zimbabwe (1,000 y)...more would be 1/5 of Time since the earliest writing

Time since the birth of Joseph Fourier (256 y)...more would be 1/20 of Time since the earliest writing

Time since the birth of mathematician Maria Gaetana Agnesi (206 y)...more would be 1/25 of Time since the earliest writing

Time since the first iron steamship crossed the English Channel (202 y)...more would be 1/25 of Time since the earliest writing

Time since birth of M. C. Escher (126 y)...more would be 1/40 of Time since the earliest writing

Time since the birth of chemist Rosalind Franklin (104 y)...more would be 1/50 of Time since the earliest writing

One average human generation (25 y)...more would be 1/200 of Time since the earliest writing

Time since first Tesla Model S launched (10 y)...more would be 1/500 of Time since the earliest writing

Lifespan of rat (2 y)...more would be 1/2600 of Time since the earliest writing

Period of Earth's orbit (1 y)...more would be 1/5000 of Time since the earliest writing

"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine