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Exactly. Certain steels are not so good at low temperatures. They have a "ductile/brittle transition temperature" [This is fairly self explanatory] Once below this temperature, bad things happen!! The problem with a ship i suppose, is that there will be a lot of residual stress from welding, as...

Ok, it is a long time since i studied any of this sort of thing, but so far as i can remember for work hardening to occur, there has to be "plastic" deformation, as opposed to elastic deformation. So, you would have to stress the material beyond its yield point. Obviously, a pressure vessel...

It does indeed, but work hardening would require that you be able to plastically deform the material. Obviously you could not do this with a finished fabrication. The material hardens as a result of the distortion and deformation of the slip planes in the material [the creation of dislocations]...

So far as i can remember from the time i studied such things steel has a fatigue limit, that is, below a certain stress level, you could subject it to limitless reversals with no fatigue problems. We were taught that aluminium does not have a fatigue limit, so when subject to cyclic loading...

It is all very sad, BUT, i have to question the intelligence of the idiots in the thing. Not being funny, but who but an idiot would get in a thing that is bolted shut from the outside, AND, is controlled by means of a kids game controller.. What did they use for comunication with the surface...

I would say that the heating element is knackered. I have seen where not much hot water has been produced and on removing the thing is was discovered that the element had turned green and was burst open for much of its length. I would assume that it is only because water is not much of a...

Years ago i read of a ruling by a judge. cannot find it anywhere now though. Still, it was a case brought by the RAC on behalf of a client. It was regarding the valuation of a written off car. The insurance company were doing the usual thing of trying to say your car is worth next to nothing as...

Yes, but why did they get as far as the ombudsman before being paid? john..

That cable is not even worth advertising.. Would be about £35 plus the vat brand new..

Why would that be?? If i walk down the street and see that next doors car has bald tyres, i am under no obligation to replace them.. john..

As regards electric fence voltages.. I had one one for my other halves horses. I bought a very good one as you need LOTS of power as any bits of grass that touch it will short it out and it stops working. Anyway, to test it was working i have a bit of "lead out cable" [it is like thin car HT...

How is a gas hob inferior??

Terribly sad news.. I had the pleasure of meeting Paul once. He came to Newport once [where i live] to look at a job and asked if i wanted to come along. Very nice bloke and HUGELY talanted too. Was an honour to meet him.. RIP Paul.. You will well and truly be missed.. john..

It is YOUR house, ****** all to do with anyone else, so do as you like. Who do you think will even care?? john..

Not sure if it matters?? What i mean is, the DNO might not like you relying on their fuse, but a fuse IS a fuse, regardless of who owns it, so the cable IS protected as the regs require?? john..

Ok, So far as i know, there are no rules, regulations, laws, or anything else that says that if you have tails longer than 3 metres then they have to have an OCPD. Yes, so far as i can remember the regs do state that a cable over this length has to have an OCPD all of its own, if the cable...

Sounds to me like a large contactor or an equally large MCCB tripping off.. john..

Trading standards, at least where i live are a total waste of time. They WILL creep around car boot sales, but if they think you have more money than them and can afford to sue them, then they will leave you well alone.. Many years ago i got car insurance in instalments. In the insurance place...

I think they still do... john..

What a load of shit... I read that they will send out alerts concerning weather.. I am thankful that i do not have a mobile telephone, as, the rest of you will be bombarded with messages saying stuff like "danger, high pollution" and shit like that. It wall be a proper scam whereby, once again...