Physicists are concerned with how nature works at the most fundamental level.
The scope of their studies is the entire universe, from the beginning to the end, and all distance scales, from the sub-nuclear to the intergalactic. Physicists examine all aspects of nature in search of patterns from which natural laws are formulated. These laws are then used to predict phenomena not yet observed. They are also used to provide a framework for natural sciences, such as biology, geology, and chemistry, as well as applied science and engineering. Advances in physics help us to understand the physical reality around us and result in new problem-solving abilities in a variety of disciplines, including medicine.