Page 245 - Allah's Miracles in the Qur'an

Harun Yahya

Someone at 5,000-7,500 metres (16,500-24,500 feet) above sea-
level may faint and go into a coma because of breathing difficul-
ties. That explains the presence of oxygen equipment in airplanes.
There are also special systems that regulate air pressure when
planes fly at 9,000-10,000 metres (29,500-33,000 feet) above sea-
level.
Anoxia occurs when oxygen fails to reach the tissues. This
oxygen deficiency occurs at heights of 3,000-4,500 metres (10,000-
15,000 feet). Some people even lose consciousness at such eleva-
tions, but can be saved by immediate oxygen treatment.
In the comparison made in the verse below, this physical
truth, the changes that take place in the chest with increasing
height, is indicated in these terms:

When Allah desires to guide someone, He expands his breast to
Islam. When He desires to misguide someone, He makes his breast
narrow and constricted as if he were climbing up into the sky. That
is how Allah defiles those who have no faith. (Qur'an, 6:125)

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