Driving a commercial motor vehicle is a big responsibility. It requires special skills and knowledge. Most drivers must obtain a commercial driver's license (CDL) through their home State (it is illegal to have a license from more than one State). Contact your State licensing bureau (e.g., Department of Motor Vehicles) for details.
Parts of our body (eyes) function as pretty good detectors for. electromagnetic radiation in the visible-light band. Nerve endings in our skin operate as detectors for radiation in. the heat band, and our bodies as a whole transmit radiation in. the heat band. Skin pigment also responds to stimulation by ultraviolet radiation,
X rays, gamma rays, alpha particles, and beta particles are ionizing radiation. Ionizing radiation has a lot of energy that gives it the ability to cause changes in atomsâa process called ionization. Radio and TV signals, microwaves, and laser light are nonionizing types of radiation.adiation is energy in the form of waves (beams) or particles. Radiation waves are generally invisible, have no weight or odor, and have no positive or negative charge. Radioactive particles are also invisible, but they have weight (which is why they are called a particle) and may have a positive or negative charge.