Do you know how many zeros there are in a duotrigintillion? Or
which country has the greatest number of smartphones? Have you ever
heard of the 'curiosity gap'? And do you know how fast the
speediest passenger zooms over the tracks? Discover the answers to
all these and much, more more in Big Countdown: Technology. The Big
Countdown looks at popular topics and investigates the great many
numbers that make them fascinating. From the mind-bogglingly large
to smallest and most precious, this series helps us understand that
it's not just our days that are numbered. Ideal reading for
number-crunchers aged 9 and up.
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