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Blue is hot yellow is not
Assuming that the light you are shining on the object is white, then the object is also blue. Objects appear a certain color because they reflect that color to our eyes and the rest of the colors in the light are absorbed by the object.
Red and blue are at opposite ends of the visible light spectrum, red being of low frequency, and blue being of high frequency. Sunlight contains frequencies across the whole frequency range, which appears white. An object that appears white reflects all frequencies. A red object appears red because it reflects red (low frequency) light, and absorbs all other colours. Blue light contains only high frequencies. If you are in a darkened room, lit only by blue light, white objects will appear blue because they are reflecting the blue light, and no other frequency is available. But a red object absorbs high-frequency (blue) light, and since this is the only light in the room, it does not reflect any light. Objects that do not reflect any light appear black. Some objects appear black even in sunlight, because they absorb all frequencies and do not reflect any. So to answer the question, when you have a red object that is lit only by blue light, it will appear black.
The light reflecting off the fabric of the shirt combined with the blue bye used to decorate it makes the shirt appear blue to the eye.
Blue!
Blue is hot yellow is not
Since blue objects absorb the green light, the objects appear black.
acids and bases
Fish can appear blue for a variety of reasons. Some fish have pigments in their skin that reflect blue light, while others may appear blue due to the way light interacts with their scales or iridescence. Additionally, environmental factors such as water quality and depth can also impact the perceived color of the fish.
The lighter or redder the color appears, the warmer the object is. This is how you can determine what objects are people or animals on a thermal camera. Nonliving objects, or colder objects, will appear blue or purple on the camera.
The way you see colors (or colours, if you prefer the British spelling) depends on the light at the moment. Blue objects may appear green or teal if the light that's cast upon them is yellow, for example, in a room illuminated by incandescent light bulbs. Those same blue objects may appear purple if the light has a red tint to it, for example at sunrise or sunset.
The male Satin Bowerbird collects blue objects.
Assuming that the light you are shining on the object is white, then the object is also blue. Objects appear a certain color because they reflect that color to our eyes and the rest of the colors in the light are absorbed by the object.
Because it is blue
The sky is blue because of Rayleigh scattering -- blue photons scatter off air molecules to a large extent, while the other colors travel directly in straight lines from the sun, making the sky appear blue and the sun appear yellow (white minus blue). In space, or on the airless moon, the sky is black and sun is white. It is NOT true that oceans look blue due to sky reflection. Water also scatters blue light, so the explanation of its color is largely the same as that for the sky.
It depends. Colour preference depends on the individual. Some girls may like the blue 3DS while others do not.
Blue tooth is wireless and mono while the others are not.