Villengineer, I have done farming sometimes part-time, sometimes full-time since the age 11. If we take age 14 as starting year, then it's about 20 years, i.e. about 2 decades. I didn't say I had always farmed full-time, but we can count this farming too was one of my profession as I had made money from it for myself for years. Ok?
As for my research & teaching & PhD & etc etc.. I won't repeat things here again and again. I am offering here a much better thing than giving you dusty library documents/etc to convince you. I am offering that - call professors of mathematics, physics, engineers, etc and lets discuss, say, about finish mower blade under the related thread
Finish Mower Blades - This is more interesting than telling about "I published this, this and that scientific paper, these doctorate thesis, etc etc" as folks here would be more concerned about such a discussions. Anyway, when I was studying on my PhD thesis I had students who were professors from different faculties of mathematics, physics, engineers who were coming to me to get some scientific helps from me. I can do the same here under this thread "Finish Mower Blade" thread. So, such a discussion about the blades must be more fun and interesting and... MAYBE, you can give yourself a chance to start to convince about what I am telling. I am not here to talk about my background. So, I am waiting for everybodys especially for those who call themselves experts/knowledgables/scientists/scholars/etc
here in blade topic - Lets do an ONLINE research study there open to PUBLIC. Anyones are couraged? Ps: So, Villengineer, my this open invitation letter to this thread of blade is REAL and real time course and MAYBE may convince you.