В какой году был проведен эксперимент по сбросу макета 400 кг бомбы?

CONVERSATION

Exercise 1. Answer the questions.

1. What invention was the center of attention at the World Fair in New York in 1939? (the first black-and-white television set) 2. What stopped the TV production? (World War П) 3. What influence has had television on people's life and way of thinking? (great influence; boundaries of time and space have disappeared) 4. What kinds of TV exist now? (satellite, cable, colour, digital and high-definition television) 5. What is the latest and the most important stage in the development of television since the appearance of colour television? (high-definition television) 6. What is the advantage of high-definition television? (the television of much higher resolution) 7. What technology makes HDTV commercially practicable now? (plasma display panel technology)