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  The Function of Earth Pin:   A 3-pin plug has a live, neutral, and earth pin. The live and neutral pins have the same thickness and length. But the earth pin is a little longer and thicker. In a properly earthed system, when we connect the 3-pin plug to a 3-pinhole socket, the metallic part of the appliance gets a direct connection to the earth via the earth pin. When there is a current leakage, the earth pin helps to divert the leakage current from the appliance to the ground. Thus, we can avoid electrocution by touching the metallic part.  Modern sockets possess a safety shuttle in the earth pinhole. When we push the earth pin down, the safety shuttle for the live and neutral pinholes will open.   Three Pin Plug Significant factors:   The earth pin is useless if the building is not earthed. The earth pin helps to connect appliances to the ground. It helps to open the safety shuttle of modern sockets for the live and neutral pinholes of the socket.   Why is the E

  All of us know what a spider web is. It is a sticky net used to trap prey. When insects fly into the web, they become stuck in the viscid thread, and spiders eat them. Spider webs are thin but very strong. Silk production When spiders moved from the water to the land in the Early Devonian period, they started silk production to protect their bodies and eggs. [13][14] Spiders gradually started using silk for hunting purposes, first as guide lines and signal lines, then as ground or bush webs, and eventually as the aerial webs that are familiar today. [15] Spiders produce silk from their spinneret glands at the tip of their abdomen. Each gland produces a thread for a different purpose. Example: a trailed safety line, sticky silk for trapping prey, or fine silk for wrapping it. Spiders use different gland types to produce different silks, and some spiders can produce up to eight different silks during their lifetime. [16] Most spiders have three pairs of spinnerets, each having its func