In physics, electromagnetic radiation (EMR) consists of waves of the electromagnetic (EM) field, propagating through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves ...

Light, heat, radio transmissions, and medical X-rays may not seem all that similar, yet they are all forms of electromagnetic radiation—waves moving through space (not just outer space ...

Researchers now think that gravitational memory could be written on photons all over the cosmic microwave background—the oldest radiation in the universe. Though gravitational memory is thought to be ...

Understanding how air moves across a planet is key to predicting its weather and climate. On Earth, these patterns shape ...

Electromagnetic radiation is the general term for the more familiar light and radio waves, but also includes gamma rays, x rays, ultraviolet rays, and infrared. All of these forms of electromagnetic ...

Radiation therapy is a cancer treatment that uses high-frequency waves to destroy cancer cells. Doctors determine the type and dose of radiation based on the type and location of the cancer ...

While THz radiation waves have been manipulated in different ways over the past decades, controlling their direction in air has so far remained a challenge. Researchers at Ecole Polytechnique ...

Short-wave infrared radiation (SWIR) is roughly the part of the electromagnetic spectrum between 1.4 μm – 3 μm, or 100 THz – 214 THz. This places it between visible light and microwaves ...

Hot bodies emit a continuous range of electromagnetic radiation at different energy values – this means that the radiation that is emitted is spread out over a range of different frequencies and ...