Science Quiz

Re: Science Quiz

X-ray, gamma, UV, infrared.. all are light waves and travel the same.
Speed of light is 300,000,000 m/s, and that includes all forms of light such as the visible spectrum, UV, and radio waves. The difference between them is the length of the wavelength - shorter wavelengths (i.e. x-ray, gamma) damage living organism while longer wavelengths (i.e. visible spectrum, radio) are harmless.
http://howtogrowmarijuana.com/wp-content/uploads/2014/02/Visible-spectrum.gif

Radio waves are sent in the ground… does not make any sense.