Radiant energy – it is transmitted and emitted as waves instead of matter. These waves differ in length from the microwaves and radio waves to short gamma waves emitted from decaying atomic nuclei. This full-spectrum energy is known as the electromagnetic spectrum. The body uses ultraviolet energy from sunlight for the conversion of the compound in skin cells to vitamin D. This is crucial for the functioning of humans. The eye of humans has evolved to see wavelengths comprising colours of the rainbow, hence the range is known as visible light.
Mechanical energy – stored in the physical systems such as engines, machines, the human body directly powering matter-movement.
Electrical energy – it is supplied by the electrolytes in cells and the body fluids. It contributed to the voltage changes which assists in transmitting impulses to muscle and nerve cells.
- Are Humans Made of Energy?
- Are Humans Chemoheterotrophs?
- What Are Humans Made Of?
- Are humans dioecious?