estions 1. What do you think is the most helpful invention? Why? 2. Which of the inventions from the word challenge do you like the most? Why? 3. What are the scientific principles behind your most favorite invention? Explain them briefly.
Answer (1)
1. I think the internet is the most helpful invention because it connects people worldwide, provides access to vast information, supports education, communication, and business, and has transformed almost every aspect of modern life.2. I like the telephone the most because it revolutionized real-time communication, allowing people to instantly connect across distances, which greatly improved personal and business interactions.3. The telephone works on the principle of converting sound waves (voice) into electrical signals and then back into sound waves at the receiver’s end. This involves the use of a microphone to detect sound vibrations and convert them into electrical signals, and a speaker to convert electrical signals back into sound. The transmission of these signals over wires or wireless networks enables communication over long distances.
