English Conversation Topics on Inventions and Technology
- Electric light bulb
- Automobile
- Airplane
- Radio
- Television
- Computer
- Internet
- Smartphone
- Refrigeration
- Microwave oven
- Vaccines
- Antibiotics
- X-ray machine
- Automated production line
- 3D printing
- Drones
- Virtual reality headset
- Artificial intelligence
- Space exploration technology