The selected intern's day-to-day responsibilities include:

1. Performing research and development on new product ideas
2. Testing prototypes
3. Analyzing data
4. Assisting with day-to-day operations
5. Reviewing and updating operating procedures to ensure that they are safe and efficient
6. Performing tests to measure the physical properties of substances such as pH, viscosity, or density
7. Conducting research on new technologies that may be used in manufacturing processes in order to improve efficiency and reduce costs
8. Preparing reports about test results and research findings for submission to journals or conferences
9. Inspecting equipment for safety issues and making repairs or adjustments as needed

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