What's an example of a task that requires knowledge of physical objects to perform?
How to prevent your garden producing stubby carrots?

What's an example of a task that requires knowledge of physical objects to perform?
How do get magnesium off a magnesium block?

What's an example of a task that requires knowledge of physical objects to perform?
To put hair into a bun

What's an example of a task that requires knowledge of physical objects to perform?
How can I make up to 4 dozen hard boiled eggs at a time?