OSA 1
OSA 2

1. What do pens, cordless tools and diapers have in common?
2. What happened in 1958?
3. What did the USA want to do in the 1960s?
4. Why were cordless tools originally developed?
5. Why was bar coding developed?
6. What was said about the astronauts on the first space missions?
7. What do space suits and fire fighters' suits have in common?
8. How does the ear thermometer work?
9. How has NASA developed smoke detectors and where they used first?
10. How did the Americans solve the problem of writing in space?
How about the Russians?