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<p>How Far is Far?
Author: Sukanya Sinha
Illustrator: Vishnu M Nair
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Today, we will climb up a ladder together. It is a rather unusual ladder. In this ladder, the
distance between the rungs gets bigger and BIGGER and BIGGER as you climb up
the steps, growing 10 times at each step. Sometimes we will climb one step at a time and
at other times we will skip many steps at one go.
The funny thing is that we are not even sure which the last step is or whether the steps
go on forever. Let the exciting journey begin!
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Step 0: 1 metre
What do a five year old boy, a
cricket bat and a newborn baby
elephant have in common?
All of them have a height of
about 1 metre (or 1m for short)!
It would be awkward to say that
the ceiling of a room is 3 baby
elephants high. So we make the
sensible choice of saying that the
height of the ceiling is 3 metres.
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Step 1: 10 metres
Now that you have a feel for the size of one metre, we are ready to climb to the next step
of our ladder, at 10 metres. A three storey building or a mango tree is roughly 10 metres
high. A cricket pitch is about twice that length.
Can you think of other objects that are about 10 m long or high?
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Step 2: 100 metres
Have you noticed that with every
step we add a zero to the right of
the number we had before and
the step number matches the
number of zeroes? Keep track of
that as we climb along.
If you have run the 100m race on
school sports day, or watched
sprinters do it on TV, you know
exactly how far that is. Now
imagine if the 100m track stood
up! That would be about the
height of two Gol Gumbaz*-es.
*The Gol Gumbaz in Bijapur, Karnataka, is the
tomb of Mohammed Adil Shah. When it was
built in 1656, it had the largest dome in the
world. It held the record until 1881!
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Step 3: 1000 metres
Thousand metres has a special
name - it is called 1 kilometre or
1 km.
You would cover this distance if
you ran the 100 metre race 10
times - phew! You would need to
climb about 9 km to reach the
top of Mount Everest.
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Step 6: 1,000,000 metres
Now let's skip 2 steps