I find building and bridge collapses fascinating.
If engineering stuff bores you, then move along.
Personally I kind of hate lambeams, I suppose if you can keep them perfectly dry at all times they're acceptable.
You may be wondering what this has to do with coal?
This is why we need cheap, readily available high quality steel. What makes abundant cheap high quality steel?
Coal.
https://youtu.be/FSPI0xkTifI
We don't need to regress back to wooden bridges.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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