The World Day for Audiovisual Heritage, observed on 27 October. The World Day provides an occasion to raise general awareness of the need to take urgent measures and to acknowledge the importance of audiovisual documents. This year the theme of the World Day for Audiovisual Heritage is “Engage the Past Through Sound and Images”.
Audio engineering: GK, Current Affairs, Questions, Trivia and News
Harvard scientists have created the world’s smallest radio receiver out of diamond imperfections called nitrogen-vacancy (NV) centres. The NV centers are capable of emitting single photons or detect very weak magnetic fields. When the NV centers receive radio waves it will convert them and emit the audio signal as red light. A common photodiode will convert ..