Because the colour 'black' is in fact the absence of other colours. It is impossible to produce a device that obviously emits the absence of something.
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No they are white. Black is the total absence of colour; the total absorption of light. ------- NO all the PIGMENTS of the colors mixed turns black all the LIGHT colors mixed together make white
No, not all light bulbs produce polarized light. The polarization of light depends on the source of light and its characteristics. LED and fluorescent light bulbs can produce polarized light, while incandescent bulbs generally do not produce polarized light.
No. An event horizon is an area where even light cant escape so only black holes have it
The stuff inside black light bulbs, such as the phosphor coatings that produce ultraviolet light, is generally not toxic. However, it's important to be cautious and avoid breaking the bulb to prevent exposure to potentially harmful substances.
you cant
no they cant, because crickets can only see black and white light.
No. That is why they are called black dwarfs. See related question
They all cant produce light.
it depends on the amount of acid in the lemon and lemon does not create make it conducts electricity
Uh...the obvious. They produce and reflect no light at all (black) and stuff goes in it (hole.)
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Light receptors are found in the eye. There are two types of receptors; rods and cones. Rods produce the black and white pigments and the Cones produce the color pigments.
Pigments are solid particles that produce color by selectively absorbing and reflecting light. The color we perceive is based on the wavelengths of light that are absorbed and those that are reflected back to our eyes.
Our eyes have both black-and-white receptors, and color receptors. The black-and-white receptors work at low light levels; the color recepters require a higher light intensity.
they produce protons and electrons they are collition then the light produce and heat produce
if its a light brown and black then its a really dark brown together if its a dark brown and black its just black or a brown you cant notice that's its a verry dark brown