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Possibly as an alloying agent. Titanium is very expensive and weight savings are almost irrelevant in railroad use. Premium steel alloys are sometimes used for high-wear curves
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Classic BLEVE. That fireball had hang time.
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And with one axle in the air, too.
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Boeing builds other models of the 737 that are unaffected by the grounding. Those will continue to ship, though perhaps not as frequently.
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I see those herons occasionally in the Auburn/Algona/Pacific area. That type of bird I'd normally associate with Florida and my sister's back yard ponds. Sometimes kingfishers, too.
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Possibly a harbinger of economic downturn. :( What types of trains appear to be most affected. I know coal's down.
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And a good thing, too. Otherwise that specialized knowledge would be lost.
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This looks fascinating, but where to find the time and presence of mind to read it fully? My life is too full of stuff.
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That's a LOT worse safety record than I knew! These days an occasional water heater gets launched through a roof. I hope it's due to far fewer boilers (and stored energy) and much more stringent safety enforcement. But imagine the stored energy in the larger coal-fired and even nuclear power...
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All tremble! Before the POWER of STEAM! (darn right it's scary)
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I'd expect wood ties (but not premium hardwoods) to be the lowest cost. Cost is also determined by life under loads. In somewhat contradictory fashion, I've observed BNSF to use concrete on sidings and in rail yards locally, yet retain wooden ties for a very busy mainline in many locations...
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Indeed there are concrete ties, with reinforcing steel rods and/or steel cables under tension cast into the concrete in a mold. They aren't subject to moisture and rot, provided a suitable quality cement is chosen (Florida East Coast RR had a bad experience with this and ground up oyster shells...
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Nowadays, the practice is to use metal plates with spiky perforations to control end splitting.
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