It’s ski season here where I live down under. And yesterday, while skiing with his school, my son Ben got taken out by a snowboarder. Hit him from behind, so squarely the snowboarder’s fault.
The snow was hard-packed and Ben banged his head hard. Hard enough to see stars and not remember what he had for breakfast. And that’s WITH the protection of a helmet!
As it happens, I too was skiing on a different part of the mountain. So it wasn’t long before I got an S.O.S. from my wife Jay, telling me that Ski Patrol had taken Ben … continue reading »
I’m currently living in the Snowy Mountains region in eastern Australia, near a small village called Jindabyne, which is about 5 hours drive from Sydney. Jindabyne is 3000 ft (944 meters) above sea level.
As you’d expect, I regularly see hydraulic machinery working on roads and construction sites in the area and I often wonder how they perform on a hot day. Because at 3000 ft, air only has 90% of its sea level density. So a fixed-speed cooling fan will move the same volume of air but at only 90% of the mass-and it’s the air mass that removes … continue reading »
A large part of being “smart” in any area of expertise comes from doing your homework. And this is especially true with hydraulics. Here’s a story from one of our members which illustrates this point pretty well:
“I’m fairly new to hydraulics and I thought coating the interior of a hydraulic tank I’d made with a zinc spray (cold galvanizing in a spray can, like paint) would be a good idea. The idea was fine but the reality was not so good. I had no way of predicting that the components of the oil would dissolve the zinc coating… I’m … continue reading »