The Arabic word "dahaw" meaning "to spread" is used in the Qur'an to describe how Allah smoothed out the Earth. This word also refers to children dropping a ball into a hole in the ground, games involving throwing stones into holes and games played with walnuts. The slightly flattened spherical shape of the Earth is known as geoid, which is similar to an egg and was revealed in the Qur'an fourteen centuries ago. Therefore, the use of the word "dahaw" in the Qur'an provides insight into the shape of the Earth that Allah has given us.
Miracles of the Quran: https://on.soundcloud.com/6Cd3Q