𝑨𝒏𝒊𝒏𝒅𝒊𝒂 𝑵𝒂𝒛𝒍𝒂

  Hello guys! during a pandemic like this, it doesn't mean we are prevented from being creative. In the video above, I show How To Make Earthquake Alarm Working Model to fill your spare time. Listen carefully to the steps, okay, enjoy! Tools and Materials      : - 3  piece of cardboard; 9x9 cm; 7x2,5 cm; 4x2,5 cm - 9V Battery - 9V Battery Clip Connector - On/Off Switch - Buzzer - Copper Wire -  Nut Bolt - Safety Pin - Hot Glue Steps                           :         1.  Glue the cardboard in a standing position 2. Make a hole in the cardboard size 4x2,5 cm 3. Glue the safety pin in the middle of the cardbaord that stands 4. Cut the copper wire and take a piece from it 5. Secure it using a hot glue 6. Connect the wire to the nut bolt, make sure is tight 7. Connect the cable of On/Off Switch with 9V Battery Clip Connector and Buzzer 8. Connect the mains ...