Well, I liked the sets in Dune but the screenplay and the complete bastardising of the story at the end were fairly breathtakingly awful. And am I alone in thinking that the casting of Sting and Kyle McLachan (assuming they were the only two available) was the wrong way round? Waterworld just exists really.
I can tell that you think a bit off-the-wall, like I do all the time! Imagine being able to harness earthquake power to drive a generator! Or lightning, for that matter.
I suppose it isn't actually power as such that shifts the surface of the earth we happen to be on at the time when an earthquake or tremor happens, but simply the effect of gravity on very large masses of rock miles down.
Lightning power has been done. But the strikes last an extremely short time, yet the equipment has to handle the full strike energy, and theres a lot of time between strikes. Those make for marginal economics at best. The nearest thing I can think of to practicality with lightning strikes is to use them to heat a pool. This minimises equipment cost, and the large thermal capacity of the pool can work with such an intermittent energy source. There is some place, I forget where, where strikes are frequent, several per day, and thats where these techs have been played with. But nothing is economically competitive yet.
yes, both mortar types are. The crush strength of sand is far greater than that of lime or cement, those just hold the sand in place so it takes the compressive forces.
FWIW lime mortared walls actually are more likely to survive movement. Its one of the reasons SPAB et al advise its use in buildings with little or no foundations.
Well, unleaded went up another 2p today where I live (near Spalding). Now 106.9p in some places. Sooner or later, a 1000 litre oil tank refill (domestic heating oil) will cost £1000, and people will be becoming desperate for ANY alternative. Anyone who can design an alternative power system now could be quids in later, even if SOME leccy/mains gas still has to be burned to even out the cold/warm periods.
They semed to, Its no worse than having and underground station under you, or living 20 yards away from a motorway..
Mind you whete the shocks were worst was the commercial area..all steel and concrete. I didn't see any brick at all in Joburg. Concrete block, or poured concrete, or wood.
Fuel cells? What about them? Don't we keep getting told that these will be the power of the future and our car exhaust pipes will pump out steam and nothing else?
Cement is only used as concrete or mortar, but it's irrelevant as tensile strength of both is too low to be used in building. Walls flex because they fail in tensile strength.
Its far higher than lime, but mortar tensile strength doesnt seem to have much effect on building survival in movement in UK. I really doubt British earthquakes are strong enough to move a building fast enough to put it in tension, not when its a brick house weighing a hell of a lot. If that did happen, loads of old lime mortared houses would be collapsing in quakes, and they dont, so I conclude it doesnt happen.
Timber frame structure compressed joints go into tension in countries with hurricanes and quakes etc, but even with those here it not necessary to use ties round the joints. Re brick wall ties in UK, I'm not sure they would make a lot of difference.
The fact that so little building collapsing occurred in the quake tells me the only things that fell down were things where the mortar was totally and utterly shot, with nothing more than gravity holding the chimney bricks in place.
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