 Good morning. My name is Suresh Singh and I have prepared this video to give you the information of the project that I have prepared for the National Science Concourse 2015. I have made an amplifier using a matchbox. The materials required for making this amplifier would be an old matchbox, 3 pieces of lead, 3 pieces of wire, a battery and then your phone so that you can hear this out. So I started off by taking my matchbox and making 2 holes at each end at a regular distance. Then I took my lead and inserted it through the matchbox leaving a gap of about 1 cm in each end. After putting in both my leads, I have flattened out one part of it so that I can make my other lead stable on these 2 leads. So this amplifier is now complete. So the only part which is left is now to connect the wires. So take the first wire, connect it from one lead to one terminal of the battery. The second wire from the other terminal of the battery to one the tip of your headphone. And the last wire you have to connect it from the other end of the headphone to the other end. And now the circuit is totally complete. I have to try this out and I'll check if it's actually working. And yes, I can actually hear the sound of me tapping the lead on the other 2 leads. You can't hear the sound right? So to make you prove that it's actually working, I'm going to take help of the Morse code. Morse code was a secretly designed language in the earlier days which the United States of American soldiers and the headquarters used to send messages to and through without letting anyone else know. Now I've changed my small wires with a long length of wire and my friend Aditya is sitting in the other loop. Now he'll try to send me messages and I'll try to decode it and I'll write the message on this chart paper. As the sentence he sent was, science is fun. I hope you enjoyed my video. Thank you.