Further, physicists, or practitioners of physics, invent and design processes and devices, such as the transistor, whether in basic or applied research.
The deepest visible-light image of the Universe, the Hubble Ultra Deep Field. Physics is often said to be the "fundamental science" (chemistry is sometimes included), because each of the other sciences (biology, chemistry, geology, material science, engineering, medicine etc.) deals with particular types of material systems that obey the laws of physics. For example, chemistry is the science of matter (such as atoms and ) and the chemical substances that they form in the bulk.