enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Infrared - Wikipedia

   en.wikipedia.org/wiki/Infrared

   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 the waves that are just longer than those of red light (the longest waves in the visible spectrum ), so IR is invisible to the human eye.

3. List of light sources - Wikipedia

   en.wikipedia.org/wiki/List_of_light_sources

   This is a list of sources of light, the visible part of the electromagnetic spectrum.Light sources produce photons from another energy source, such as heat, chemical reactions, or conversion of mass or a different frequency of electromagnetic energy, and include light bulbs and stars like the Sun. Reflectors (such as the moon, cat's eyes, and mirrors) do not actually produce the light that ...

4. Luminous paint - Wikipedia

   en.wikipedia.org/wiki/Luminous_paint

   It has a dark blue filter material on the bulb which lets the invisible UV pass but blocks the visible light the bulb produces, allowing only a little purple light through. Fluorescent paints are best viewed in a darkened room. Fluorescent paints are made in both 'visible' and 'invisible' types.

5. Electromagnetic spectrum - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_spectrum

   By definition, visible light is the part of the EM spectrum the human eye is the most sensitive to. Visible light (and near-infrared light) is typically absorbed and emitted by electrons in molecules and atoms that move from one energy level to another. This action allows the chemical mechanisms that underlie human vision and plant photosynthesis.

6. List of types of lighting - Wikipedia

   en.wikipedia.org/wiki/List_of_types_of_lighting

   Lighting is the deliberate use of light to achieve a practical or aesthetic effect. Types of lighting include: Christmas lighting; Automotive lighting.

7. Light - Wikipedia

   en.wikipedia.org/wiki/Light

   Like all types of electromagnetic radiation, visible light propagates by massless elementary particles called photons that represents the quanta of electromagnetic field, and can be analyzed as both waves and particles. The study of light, known as optics, is an important research area in modern physics.