What are the "blue tears" in the sea?

In summer, I can occasionally see a blue light with white spots on the coastline, like a galactic dream. These blue-emitting marine creatures have a fantastic name-blue tears, scientific name fireflies, which are plankton living in the bay. Because it has a structure called "luminous gland", it will emit blue light when it is slapped by the waves, which is why it appears on the beach.

Why is the light blue? This is because different colors of light travel at different speeds in the sea. Blue light with shorter wavelength propagates fastest in seawater, while other light with longer wavelength is gradually absorbed with the increase of seawater depth, so we see blue light.

Blue Tears is as beautiful and sad as its name. In fact, "Blue Tears" is a microorganism that lives on the bottom of the sea. Once washed ashore, it means the end of life. Blue tears can only live 100 seconds without seawater. Such a story cast a sad color on that beautiful blue light. In addition, blue tears only appear when the south wind blows and the tide rises. If you want to feel this short and romantic beauty, you can go to Pingtan and other places in Fujian from April to August.

Like fireworks, blue tears are so gorgeous and short, just like time is fleeting for us. Grasp the time, let it play its greatest value and let our beauty stay longer. # Science Big V Training Plan # # Campus Big V Plan #