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   Hi, this is my school vacation. So I show you a simple circuit that makes music. Do you know what is um 66 ic. That is a small ic. It includes music tones. So, in this circuit we use this ic. List of electronic components Componet Quantity Ic UM66 1 2Sc828 1 100ohm 1 Circuit Diagram First time make it on a breadboard and check it. If it is working properly, you can make it on your own PCB or a dartboard. Pin configurations of UM66 and 2SC828 are given below. please add a comment   

hello there, in this post I show you how to find protein. what are you need:-             a solution from a food              sodium hydroxide             copperselfate             a test tube 1. add sodium hydroxide for food which you choose for this experiment 2. now add a little from coppersulfate. 3. if your food has protein, the solution maybe purple.

In this video i show you a way to make oxygen at home. Please add a comment.

Hello there, In this Halloween season, I made a mini game. It name is "The Halloween". I give you it free. I think you enjoy from playing this game. How to play It's very easy. you have to collect all the jack o lanterns. But,  you have to be careful with ghost. Download Please add a comment