About 468,000 results
Open links in new tab
  1. Infrared - Wikipedia

    Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves.

  2. Infrared Light – Infrared Radiation - Science Notes and Projects

    Mar 19, 2025 · Infrared light, also called infrared radiation or IR waves, is a type of electromagnetic radiation with wavelengths longer than visible light but shorter than …

  3. INFRARED Definition & Meaning - Merriam-Webster

    The meaning of INFRARED is situated outside the visible spectrum at its red end —used of radiation having a wavelength between about 700 nanometers and 1 millimeter. How to use …

  4. Infrared radiation | Definition, Wavelengths, & Facts | Britannica

    May 22, 2025 · Infrared radiation, that portion of the electromagnetic spectrum that extends from the long wavelength, or red, end of the visible-light range to the microwave range. Invisible to …

  5. What Is Infrared? - Live Science

    Feb 27, 2019 · Infrared radiation (IR), or infrared light, is a type of radiant energy that's invisible to human eyes but that we can feel as heat. All objects in the universe emit some level of IR …

  6. What is Infrared? - Cool Cosmos

    Aug 16, 2013 · What is Infrared? Infrared is a form of light... light that we can not see with our eyes, but that we can sometimes feel on our skin as heat. When we think of light, we may …

  7. What Is Infrared Light? Definition & Top Uses - Optics Mag

    Mar 14, 2024 · Infrared is a type of energy on the electromagnetic spectrum. Invisible to the human eye, infrared energy is given off by all heat sources. Discovered in 1800 by William …

  8. Infrared Waves - NASA Science

    Aug 10, 2016 · Infrared waves have longer wavelengths than visible light and can pass through dense regions of gas and dust in space with less scattering and absorption. Thus, infrared …

  9. What Is Infrared Light? Uses, Advantages & Disadvantages

    May 6, 2025 · Infrared light or infrared waves refer to electromagnetic radiation with a wavelength longer than visible light but shorter than microwaves. The name “infrared” comes from the …

  10. A Quick Guide To: The Basics of Infrared

    Jul 13, 2021 · Infrared radiation, also referred to as infrared light or infrared waves, is a form of energy with frequency and wavelengths just below the visible light portion of the …

  11. Some results have been removed