This ever-growing field features the design and operation of air and spacecraft, including the intricacies of how flight works.

Apply engineering science to agricultural production and farming. Combines elements of mechanical, civil, and chemical engineering with animal and plant biology.

Apply engineering principles and technology to the field of medicine, creating new and improved medical treatments for patients. Tissue engineering, while also considered a specialization within biotechnology, is one such example of biomedical engineering in action.

Deals primarily with the design, construction and maintenance of bridges, roads, canals, and the like. As a point of interest, this engineering discipline was enshrined to distinguish itself from military engineering. It is considered the second-oldest discipline, after military.

Combines computer science and electronic engineering. Computer engineers design both computer software and computer hardware, in addition to developing solutions for the integration of the two.

The study and application of electromagnetism, electronics, and electricity. It's a broad-based discipline that encompasses the design and implementation of various electronic / electrical systems such as circuits, generators, motors, and transformers.

The application of scientific principles to environmental improvement. Generally speaking, this discipline attempts to provide healthy air, water and land for safe habitation. Additionally, this particular discipline attempts to find ways to reverse environmental damages caused by pollution.

Development and ongoing improvement of integrated systems. Industrial engineers seek to minimize waste and maximize efficiency by tweaking current production systems.

Deals almost exclusively with the design and maintenance of different manufacturing processes, tools, equipment and machines. Lean manufacturing principles are one such example of scientific manufacturing in action.

Concerned with the properties of matter and its application to science and technology. This generally refers to the study of the structure of materials at the molecular level, and includes elements of applied physics and chemistry. Nanotechnology is one such example of materials engineering in action.

Primarily concerned with the design, production and use of tools and machines. Mechanical engineers are the inventors and builders of the machines that will shape our future.

For the student that seeks to explore and explain fundamental questions that range from understanding the origin of the universe, including string theory, cosmology, and astrophysics, to understanding the visible world of colloids and the world on an ever diminishing scale, from the mesoscale to the nanoscale, condensed matter, and atomic, molecular and particle physics.

For the future engineering aiming to analyze, design, simulate, visualize, optimize, monitor and assess the behavior and environmental interactions of structures and structural materials from a holistic perspective, including those used in civil, geotechnical, aerospace, naval, marine, energy, and biological applications.

Primarily concerned with finding practical applications of nuclear energy. This includes the development and maintenance of nuclear reactors, power plants, and weapons.