On The Knowledge
Not all knowledge is power - my head is crammed with stuff I'll never use. But specific knowledge focussed around a goal - like removing a rusty nut or bolt to release assembled components - is something you'll find useful throughout your life.
The Rusty Nut Bible books provides an assembled set of techniques to resolve this particular issue.
Some of the information is based on science - the following pages provides more background information, should you be interested.