Topics from July 2018 What is a modem? Posted by Keshav Jain on Tuesday, July 31. 2018 How do mobile phones work? Posted by Keshav Jain on Tuesday, July 31. 2018 How do we receive messages and TV pictures from a satellite orbiting the Earth? Posted by Keshav Jain on Tuesday, July 31. 2018 How can television pictures be transmitted by radio waves? Posted by Keshav Jain on Tuesday, July 31. 2018 What is telecommunications? Posted by Keshav Jain on Tuesday, July 31. 2018 How does a telephone work? Posted by Keshav Jain on Tuesday, July 31. 2018 What are communications? Posted by Keshav Jain on Tuesday, July 31. 2018