What's an example of a task that requires knowledge of physical objects to perform?
To prevent headaches caused by eye strain,

What's an example of a task that requires knowledge of physical objects to perform?
To wire a computer fan to power when outside the computer.

What's an example of a task that requires knowledge of physical objects to perform?
how to stop a fan belt from squeaking

What's an example of a task that requires knowledge of physical objects to perform?
How do you make fabric softener crystals?