Gravity Method Introduction
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- Introduction of Newton's law
- Gravitational potential field, gravitational acceleration 
- Measurement Principle
- Point masses and anomalies of spatially extended point masses

Video 1 and 2: Theory of gravity measurements
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In this video we introduce the resistivity method as an active survey type which probes the sub-surface in terms of its electrical resistivity. We derive a solution for the current flow density in a homogenous halfspace and then visualize the potential field for a two electrode setup. The need for a four electrode setup is explained.


.. image:: VidGrav1.png
  :target: https://www.youtube.com/watch?v=5KgupS8gdts&t=508s
  :width: 400
  :alt: Introduction to the Gravity Method 1

.. image:: VidGrav2.png
  :target: https://www.youtube.com/watch?v=5KgupS8gdts&t=508s
  :width: 400
  :alt: Introduction to the Gravity Method 1

Lecture slides :download:`Lecture Slides <../../Content/GravityMethod/Slides/GravityMethod.pdf>`