# data[].attributes.headline
Gamma Rays	Gamma ray is a stream of high-energy electromagnetic radiation given off by an atomic nucleus undergoing radioactive decay. Because the wavelengths of gamma rays are shorter than those of x-rays, gamma rays have greater energy and penetrating power than x-rays.

# data[].attributes.subject
Gamma Rays	Gamma ray is a stream of high-energy electromagnetic radiation given off by an atomic nucleus undergoing radioactive decay. Because the wavelengths of gamma rays are shorter than those of x-rays, gamma rays have greater energy and penetrating power than x-rays.

# data[].attributes.headline
X-Rays	A relatively high-energy photon with wavelength in the approximate range from 0.01 to 10 nanometers. (Also called roentgen ray)

# data[].attributes.subject
X-Rays	A relatively high-energy photon with wavelength in the approximate range from 0.01 to 10 nanometers. (Also called roentgen ray)

# data[].attributes.headline
ULTRAVIOLETUltraviolet light is a form of radiation which is not visible to the human eye. It's in an invisible part of the electromagnetic spectrum. Radiated energy, or radiation, is given off by many objects.

# data[].attributes.subject
ULTRAVIOLETUltraviolet light is a form of radiation which is not visible to the human eye. It's in an invisible part of the electromagnetic spectrum. Radiated energy, or radiation, is given off by many objects.

# data[].attributes.headline
Visible Light	Visible light is a form of electromagnetic radiation, as are radio waves, infrared radiation, ultraviolet radiation, X-rays and microwaves.

# data[].attributes.subject
Visible Light	Visible light is a form of electromagnetic radiation, as are radio waves, infrared radiation, ultraviolet radiation, X-rays and microwaves.

# data[].attributes.headline
INFRAREDinterference is the process in which two or more light, sound, or electromagnetic waves of the same frequency combine to reinforce or cancel each other, the amplitude of the resulting wave being equal to the sum of the amplitudes of the combining waves.

# data[].attributes.subject
INFRAREDinterference is the process in which two or more light, sound, or electromagnetic waves of the same frequency combine to reinforce or cancel each other, the amplitude of the resulting wave being equal to the sum of the amplitudes of the combining waves.

# data[].attributes.headline
MICROWAVESelectromagnetic wave with a frequency in the range of 100 megahertz to 30 gigahertz (lower than infrared but higher than other radio waves).

# data[].attributes.subject
MICROWAVESelectromagnetic wave with a frequency in the range of 100 megahertz to 30 gigahertz (lower than infrared but higher than other radio waves).

# data[].attributes.headline
RADIO WAVESRadio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light.

# data[].attributes.subject
RADIO WAVESRadio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light.

# data[].attributes.body
In physics, Frequency is the number of crests of a wave that move past a given point in a given unit of time. The most common unit of frequency is the hertz (Hz).

# data[].attributes.headline
WAVELENGTHLight is measured by its wavelength, one wavelength equals the distance between two successive wave crests or troughs.

# data[].attributes.subject
WAVELENGTHLight is measured by its wavelength, one wavelength equals the distance between two successive wave crests or troughs.

# data[].attributes.body
Mechanical longitudinal waves are also called compressional waves or compression waves, because they produce compression and rarefaction when traveling through a medium.

# data[].attributes.headline
TRANSVERSE WAVESA wave that oscillates perpendicular to the axis along which the wave travels. Electromagnetic waves are transverse waves, since the electric and magnetic fields oscillate at a right angle to the direction of motion.

# data[].attributes.subject
TRANSVERSE WAVESA wave that oscillates perpendicular to the axis along which the wave travels. Electromagnetic waves are transverse waves, since the electric and magnetic fields oscillate at a right angle to the direction of motion.

# data[].attributes.headline
ELECTROMAGNETIC WAVESOne of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

# data[].attributes.subject
ELECTROMAGNETIC WAVESOne of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

# data[].attributes.headline
MECHANICAL WAVESA mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium.

# data[].attributes.subject
MECHANICAL WAVESA mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium.

# data[].attributes.headline
WAVESWaves involve the transport of energy without the transport of matter.

# data[].attributes.subject
WAVESWaves involve the transport of energy without the transport of matter.