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Though what with all the windows being either painted over or boarded up with signs, it looks like it was a most unattractive curry house. Clean Your Condenser Matrices.

Yes, where there is rock it tends to be pretty good, but most of the bottom is not rock but soft stuff which keeps moving about so you couldn't rely on it staying put if you dredged an immersed-tube trench into it.

It seems to be unreasonably hard to find chart/map images that show the figures for the depths legibly, but you can sort of read some of the second image, and the first one does at least show the range it covers. Zero is chart datum / LAT so all the depths greater than zero indicate areas which...

I would be inclined to favour that suggestion on the basis of the colours of the stencil and its background. I definitely think it's more likely than it being of railway origin. Certainly the railways used very similar ones but the style of construction suggests "light industry" (broadly...

Surely the real problem, in context, is that you don't get a free causeway because they don't go all the way across...

Indeed (not to mention the currents). It certainly wouldn't be any good trying that where it is at the moment, which is basically an underwater gorge. For it to work at all it would have to be on an entirely new route some distance downstream and therefore with a much longer underwater section.

Yes. Basically the writing was on the wall for Swindon as soon as the hydraulics were gone (if not before), so it spent the last 10 years or so being run down and taking on a lot of scrapping of things to stave off the inevitable closure.

Ah, I was imagining a scenario from quite a while before the M4 existed :) But never mind, 37m is within my anticipated range, so here's a diagram of it based on the OS 1:25000 map. I've tried to overlay your route on the map as well; it needs a bit of tweaking to make it match up and I haven't...

Yes, but on the other hand most of the length of the tunnel is "approach tunnel" to get the depth required to pass a safe distance below the deepest point of the river channel. At low tide this short bit is the only part which is actually under water, so only the corresponding part of a bridge...

There is. Later in the series he talks about doing night shifts around Oxford and the quiet of the night being suddenly broken by the synchronised cacophony as all the clocks in Oxford strike at once... apart from one in something called "the Tom Tower" which is always late, having defiantly...

It's the combined drainage from several square miles on the Welsh shore percolating down through porosities and fissures in the rock. It can't be diverted away because there is nowhere to divert it to. Before the tunnel came along and intersected the fissure system it stood full of water up to...

A bridge. (Just so long as they don't let whoever designed that abominable motorway bridge anywhere near it.) Which is what they should have done in the first place, at the latest when they found they were never going to be able to turn the pumps off, if not in preference to restarting the...

I don't know the Creedy, but the upper reaches of the Exe flow through bare moorland where there are essentially no trees beyond the very occasional stunted dwarf and are never going to be any. There is no "upper flood plain" - it's not like the rivers which accompany certain well-known...

I reckon most of the mass support for nationalisation is due to magical thinking, just like it was with leaving the EU. People (including those who can't even remember BR) are told that the railways are in a mess because of privatisation, and jump to the conclusion that nationalisation will...

The problem is old substation equipment not being able to send the power back into the grid because passive rectification can't convert DC back into AC. This is exactly the same reason why AC electrics used not to be able to regenerate, and the answer is the same too - install the technology we...

Some months ago someone posted on here how much loss we actually experience in the two systems, and it turns out the difference is much less than I^2R would lead you to expect. Why this should be so is a question with many different answers, but a couple that spring to mind are that the very...

Henwick, Blackpole, Fernhill Heath, St Peters, Bransford Parkway... And a continuous-flow cable car aerial connection between Foregate St and Shrub Hill.

http://www.railwaysarchive.co.uk/documents/BoT_Knottingley1901.pdf Hoy keeps calling the alloy "bronze", which makes it sound posher than it is. Carlton's report makes it clear that it is actually brass. His analysis is bang on and the behaviour of the stays is basically just what you'd expect...

You didn't think I'd come up with the idea myself, did you? :) ...whereas in fact we're even worse.

Level 1 slipping: slip follows the main train then slows down and stops. Level 2 slipping: slip slows down while the main train goes through on the fast, then points are changed to divert the slip into the platform road. Level 3 slipping: main train stops at station after slipping and points...