1. Automation and artificial intelligence have further improved transportation, making it safer and more efficient

2. Left-handed scissors are specially designed for left-handed individuals to ensure comfortable and efficient cutting.

3. Los Angeles has a vast and efficient public transportation system, including buses, trains, and a subway network.

4. Reducing water consumption and using water-efficient technologies can help protect freshwater resources.

5. The introduction of the dial telephone in the 1920s further improved the telephone system, as it allowed for faster and more efficient call connections

6. This was a time-consuming process, and it was not until the invention of the automatic switchboard in 1892 that the telephone system became more efficient