What's an example of a task that requires knowledge of physical objects to perform?
To clean a foggy mirror and keep the fog off for a couple weeks

What's an example of a task that requires knowledge of physical objects to perform?
Shine metal insturments without commercial polishes.

What's an example of a task that requires knowledge of physical objects to perform?
How to adhere letters to felt garment.

What's an example of a task that requires knowledge of physical objects to perform?
When making a homemade hand warmer what is a good material to put in the pouch?