Posted by MarkB_MI on January 03, 2018 at 14:48:07 from (198.208.159.17):
In Reply to: Saveing the world. posted by Brent Zappe on January 03, 2018 at 07:00:29:
Better get used to it. Several European car makers have announced they'll phase out internal combustion vehicles in the next decade, switching to hybrid and/or 100 percent electric vehicles. Certainly US car makers won't get on the band wagon until they have to, but eventually they will.
The question is not whether or not electric vehicles pollute. They do. The question is which vehicles have the smaller environmental footprint: internal combustion or electric? If you can effectively recycle the batteries and generate power from renewable sources, electric vehicles have a smaller footprint. Even if we can't generate all of our power from renewable sources, economic forces are pushing out the dirtiest source of electricity, coal.
Rather than recycle lithium batteries, Elon Musk has proposed to re-purpose used EV batteries by using them to store solar energy. The used batteries are good enough for this purpose, it postpones the need to recycle the batteries, and it solves the need for low-cost solar energy storage.
Don't knock catalytic converters. Without this technology (or something similar), we would have been faced with an difficult choice: Continue to pollute our cities until they're unlivable, or switch to electric vehicles back when the technology was in its infancy. Also, catalytic converters had a beneficial side effect: they forced the elimination of lead from gasoline, removing a major source of lead in the environment. Anyone who experienced the air quality of Los Angeles or Denver back in the seventies and again in the past decade (as I believe you have) would agree that the air in those cities is much better today. Automotive emission controls were a major contributor to that improvement.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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