Migration

Today we started on a familiar topic to most people. Migration. First off, what is Mobility? Mobility is mostly a generalized term that refers to all types of movements. Some examples of mobility are when you travel to work or school, or weekly/daily visits to local shops/stores. Short-term and repetitive acts of mobility are referred to a circulation. A permanent move to a new location constitutes migration, which I don't necessarily understand because birds migrate up north for the summer and then down south for the winter. In the Powerpoint, it says that migration is when you move somewhere permanently. But birds migrate to new places every single year. Anyways, the difference between the number of immigrants and number of emigrants is a places net migration. Ravenstein's law states  that most migrants will relocate a short distance and remain within the same country or the long-distance migrants to other countries head for major centers of economic activity so they can get a job and start earning some money.