What are the top 20 gadgets ever?

Answer 1

1. the fire stick
2. the basket
3. the knife
4. the axe
5. the arrow/spear
6. the wheel
7. the plough
8. paper
9. the pen
10. the telescope
11. the printing press
12. the microscope
13. the steam engine
14. the dynamo
15. the telephone
16. the light bulb
17. the computer
18. the car
19. the aeroplane
20. scissors