What's an example of a task that requires knowledge of physical objects to perform?
To hold a ribbon in place when it's wrapped around a vase, you can

What's an example of a task that requires knowledge of physical objects to perform?
How to make a fishing spear?

What's an example of a task that requires knowledge of physical objects to perform?
To make a pattern out of a thin plastic.

What's an example of a task that requires knowledge of physical objects to perform?
How can I easily view the items in my refrigerator without taking anything out (even the ones at the back)?