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Pastimes : R. Harmon's Earth 101
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To: Lilian Debray who wrote (140)4/22/2000 6:03:00 PM
From: .Trev   of 183
 
It's a very long time since I was in school but I still seem to remember that SO4 is incomplete as a formula and needs some sort of other appendage before it becomes a sulphate. My mind (like yours) is a receptacle of more or less useless (but interesting) information. My accumulation comes from 50 years of Engineering and construction experience, and therefore largely relates to problems that had to be solved.

Your mention of the Titanic and the activity of microbes
reminds me closely of a problem with a finely machined and honed steel shaft that was shipped from Montreal to Karachi. Of course it was "Export packed" which in those days meant wrapped in waxed paper as the first inside layer, which turned out to be a mistake. The problem was that the paper kept the condensed salt water vapour inside and that resulted in incredible corrosion and startling patterns on the surface of the steel. some of the patterns were as deep as 0.125 of an inch. Smooth surface was mandatory and the nearest lathe capable of remachining was in Europe so we had to build one on site.

It's fascinating that in this age of Research almost everything that comes up seems to have implications on the practical aspects of living in Harmony on Earth 101.

According to the news item on the Heart the latest school of thought is that the dinosaurs were very probably warm blooded.

Cheers
Edit P.S. That shaft was solid steel, 36 inches in diameter and some 12 feet long with flanges if I remember correctly.
EOM
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