Is firefly a light source?

Best answer: No. Fireflies are not light sources, but fluorescence is cold light, which comes from chemical substances in the body. Although this light is bright, it has no heat and does not produce magnetic fields. It is a kind of “cold light” and does not belong to light sources. Cold light emitted by fireflies not only has high luminous efficiency, but also is very soft, which is very suitable for human eyes.

1. Fireflies are not light sources, but fluorescence is cold light, which comes from chemical substances in the body. Although this light is bright, it has no heat and does not produce magnetic fields. It is a kind of “cold light” and does not belong to light sources. Cold light emitted by fireflies not only has high luminous efficiency, but also is very soft, which is very suitable for human eyes.

2. Glowworm luminescence is a kind of bioluminescence. The luminous principle of fireflies is that fireflies have special luminous cells, and there are two kinds of chemicals in luminous cells, one is called fluorescein (called firefly fluorescein in fireflies), and the other is called luciferase. Fluorescein can consume ATP under the catalysis of luciferase, and react with oxygen. In the reaction, excited-state oxidized fluorescein is produced, and when oxidized fluorescein returns from excited state to ground state, photons are released.

3. Almost all the energy released in the reaction is released in the form of light, and only a small part is released in the form of heat. The reaction efficiency is 95%, so beetles will not be burned by overheating. Up to now, mankind has not been able to produce such an efficient light source.

4. There are many white patches in the lower abdomen of worms. Is actually the part of its shell that is transparent to light. There is a white film inside, which can reflect light. So this part is white during the day.

5. Biological significance of luminescence: Adults use the unique flash signal of species to locate and attract the opposite sex, thereby completing the mission of mating and reproduction. A few fireflies use the flash signal to prey, and another function is as a warning signal, that is, when fireflies are stimulated, they will emit light.

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