Hi Everyone
The Christmas just past (2008/2009), Randy Zimmerman and I met up.
Was going over to see family nearby for Christmas, so took the opportunity.
Randy met me at the airport. Realised didn't even know who I was looking for, despite the decade of help he's given me. So had to write out a sign on a sheet of paper as plane coming in to land!
Went to meet him at home near Vancouver. Took me to college at Chilliwack. Was inspired by the BC welder training program. Did a website about it, from what I learned after following Randy's suggestion to travel around BC and see more colleges.
It's here at
Then finally - hopefully sent from everyone - big big "sorry" to Mrs Zimmerman - hogged her computer for a few hours when had a brain-rush pouring out computer program calculating the efficiency of block-and-tackle!!! Realised "efficiency" calculation in a text book was wrong - missed a "unique" advantage block-and-tackles have that the friction increases the tension on the ropes - and that extra tension adds to the lifting power! So you don't want friction - but you don't loose as much as you'd think... Looks one reason why block-and-tackle on sailing ships of old - even high-friction wood-on-wood works quite well. And thanks for lovely hospitality - had great stay.
Richard Smith