Yes, no offense to folks giving a short answer and we all are prone to do it, especially where one's time might be short on a given day. But getting folks used an investigative approach to answering a question that they have, or even sharing what they did to try to figure out something, helps them to develop a method to help themselves and others. Perhaps circle back to a thread to further develop the discussion and help develop fellow hobbyists. Side comment: the Western 'System of Education' has largely devolved to rewarding school systems for producing weak/poor thinkers. Placing emphasis on 'teaching to the test' in order to score points for a relative ranking amongst other schools locally, statewide, and nationally to determine where and where not to invest resources has created an approach to teach answers to students...not a method for learning how to figure things out and to develop knowledge. Critical thinking. Once a person forgets an 'answer', and they don't have a method for figuring an answer out, they will perhaps, ask again, "What's that answer?" Or worse. They won't pursue an answer at all. People or Educational Systems that encourage and develop intellectual curiosity, deserve our thanks.