Fire Fly

Firefly is actually very cool insects and it just got a name as FIREFLY, in fact they are not even flies, they are beetles. They have a way of transfer out light signals each now and then. If you see them at night on a tree, you may believe it is a brilliantly lit Christmas tree. That is the kind of light these fireflies bring into being. But the light they send out does not have warm, like the bulbs we use. The firefly's glow is cold.

Actually these beetles might be the majority efficient bulbs if only we knew how to use them. For almost all the energy they produce gets distorted into bright light -> cool light.

The fireflies throw out light signals at fixed intervals, and the reason following it is to attract beetles for mating. But one firefly's signal is different from another's, depending on its gender and the type of family it belong to.

Fireflies come from two families of beetles. One family of fireflies is regularly found in Europe, North America and Australia. The other family of fireflies is bringing into being in the Pacific islands. There is an additional type of beetle which gives out a softer light. It is called the glow worm.