Infrared Waves - NASA Science
2016年8月10日 · Infrared waves, or infrared light, are part of the electromagnetic spectrum. People encounter Infrared waves every day; the human eye cannot see it, but humans can detect it as heat. A remote control uses light waves just beyond the visible spectrum of light—infrared light waves—to change channels on your TV.
What Is Infrared? - Live Science
2019年2月27日 · 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 radiation,...
Infrared - Wikipedia
Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves. The infrared spectral band begins with waves that are just longer than those of red light (the longest waves in the visible spectrum), so IR is invisible to
Infrared radiation | Definition, Wavelengths, & Facts | Britannica
2024年12月20日 · 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 the eye, it can be detected as a sensation of warmth on the skin. Learn more about infrared radiation in this article.
NASA/IPAC Infrared Science Archive (IRSA)
IRSA is chartered to serve calibrated science products from NASA's infrared and submillimeter missions, including the 2MASS, IRAS and MSX surveys, and the ISO and SWAS observatory missions. IRSA provides web-based and machine-friendly …
What is Infrared? - Cool Cosmos
2013年8月16日 · 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 imagine the glare of the Sun on a summer day, or the soft glow of a light bulb at night.
What Is Infrared Radiation? Science-Based Facts & FAQ
2024年3月14日 · Infrared radiation, or infrared light, is a type of radiant energy invisible to the human eye. Keep reading as we explore what infrared radiation is and how it works...
Scientists Say: Infrared - Science News Explores
2018年8月6日 · Scientists can learn a lot about objects by sensing their temperature. For example, infrared cameras can help scientists understand what faraway planets are made of. An infrared camera could help detect hidden weapons. Check out the full list of Scientists Say here.
Infrared Radiation - an overview | ScienceDirect Topics
Infrared radiation refers to electromagnetic radiation with wavelengths between microwave and visible light, ranging from 0.78 to 1000 μm. It is not directly visible to the human eye but is emitted by any object with a temperature above absolute zero.
Infrared Light - an overview | ScienceDirect Topics
Infrared light is an electromagnetic radiation between microwave and visible light, with a wavelength of 0.78 ∼ 1000 μm, including near-infrared (NIR, 0.78 ∼ 1.4 μm), short-wavelength infrared (SWIR, 1.4 ∼ 3.0 μm), mid-wavelength infrared (MWIR, 3.0 ∼ 8.0 μm), and long-wavelength infrared (LWIR, 8.0 ∼ 15.0 μm) [1,2]. Although ...