This reduces losses from electromagnetic radiation and inductive coupling. All modern communication systems use forms of electromagnetic radiation. A photon is the quantum of light and all other forms of electromagnetic radiation. Astronomy is not limited to using electromagnetic radiation. Not all types of electromagnetic radiation are carcinogenic. These particles act as a force particle similar to the photon of the electromagnetic interaction. They do this by exploiting the properties of the electromagnetic radiation LSM modes. Central to the study of electromagnetic waves is the wave equation. Bone stimulation may be with either electromagnetic or ultrasound waves. Spectroscopy is used to study the interactions of electromagnetic waves with matter. Another example of the practical use of electromagnetic shielding would be defense applications. Inducers include chemicals, electromagnetic or light waves. This can be any of a number of mechanical, gravitational, or electromagnetic effects. Hyperspectral sensors look at objects using a vast portion of the electromagnetic spectrum. Other systems similar to radar make use of other parts of the electromagnetic spectrum.