Page 69 - DK Children's Encyclopedia
P. 69
This system of writing
from ancient Greece is
Codes in war still not understood.
One of the most common
uses for codes is to keep secrets, Linear A tablet
especially during wartime. When
commanders give orders to their
armies, they need those orders to
be kept secret from the enemy.
Code breakers try to crack the codes
and learn enemy secrets.
Unbroken codes
The Enigma Code Some languages remain a
was broken by a mystery—their writings have
machine called a been discovered but never
“bombe,” created translated. It is likely that
by Alan Turing. we will never know
what they mean.
Messages
typed here
were encoded
by special
wheels.
DNA strand
DNA
DNA—short for
Deoxyribonucleic acid—is
found inside the cells of all
living things, including plants
and animals. It contains a
genetic code on how the
living thing will form.
The Enigma machine was used by Germany during World War II.
67
US_066-067_Story_Of_Codes.indd 67 16/05/2017 11:07
