How Do Fireflies Produce Cold Light Without Burning?

课文

1. Fireflies glow through a chemical reaction called bioluminescence, not combustion.

   萤火虫发光靠的是生物发光，而非燃烧。

2. Their light comes from luciferin, a molecule that reacts with oxygen inside living cells.

   它们的光来自荧光素，这种分子在活细胞内与氧气发生反应。

3. This reaction is powered by ATP—the energy currency found in all living organisms.

   该反应由ATP驱动——ATP是所有生物体内的能量载体。

4. An enzyme named luciferase speeds up the process so light emits almost instantly.

   一种名为荧光素酶的酶加速反应，使光几乎瞬间发出。

5. Over 90% of the energy becomes visible light, while less than 10% turns into heat.

   超过90%的能量转化为可见光，不到10%转化为热。

6. That makes firefly light extremely efficient compared to incandescent bulbs, which waste most energy as heat.

   因此萤火虫发光效率极高，而白炽灯则将大部分能量浪费为热。

7. The color of their glow depends on slight changes in luciferase structure and pH levels.

   其发光颜色取决于荧光素酶结构的细微变化及酸碱度。

8. Some species even adjust flash patterns to attract mates or warn predators.

   有些种类甚至通过调整闪光模式来求偶或警示天敌。

9. Unlike electric lights, bioluminescence requires no external power source or wiring.

   与电灯不同，生物发光无需外部电源或线路。

10. Scientists study these systems to design safer medical imaging tools and eco-friendly lighting.

    科学家研究这些系统，以开发更安全的医学成像工具和环保照明。