SteamyTea

Some great countryside around there, but way to far from the Atlantic.

Cousin Jack's moto.

Ah Smellyfishy. Some nice places around Falmouth. Spent way to much time up the Helford Passage. Where up country you been?

Think that was NaOH, or caustic soda.

Ask 100 architects for an eco solution, you get 100 wrong answers, at least.

Or black.

Ah, right. Paint it white.

As says RTFM, or spend the rest of your week with a bucket of deionised water (in itself very environmentally damaging) and a toothbrush.

Why I think that cement is alkaline, so the acid will remove it, and not damage the stone to much, which is lower down the pH scale. Bleach acts as an alkaline solution, so is probably heading in the wrong direction. It is all to do with the free electrons and the movement of ions, not that I really understand it.

Is that a short and curly.

Welcome. Which bit of Kernow are you to? When it comes to planning, onen hag oll, does not apply. Decide what you mean by 'Eco', my house is not eco, but it is relatively low energy, both embedded and running costs.

Isn't there restriction on buying acid for cleaning after that woman was blinded by her ex with it. And "Watch and Wipe" is a much better trade name.

Faraday Cage. Just wanted to say it, I have nothing else to offer.

Why would that be a problem, you size at the lowest level with a syphon feed, then the height differences are an irrelvance.

No. Nuclear and Tidal aren't. MGH Mass flow rate times Gravity times Height. The greater the difference in height, between the water surface and the turbine, the same amount of power can be extracted from a smaller mass flow rate. It is why we don't have turbines on many river weirs, they are just not high enough. And why, even in the Bristol Channel, a tidal turbine is not that great, in the scheme of things. 15 m of height difference is too small, the Grand Coulee Dam is over ten times the height and has a name plate capacity of 6.8 GW, twice the size of Hinkley Point C. A Barrage across the River Severn would be ten miles long, Grand Coulee is a little less than a mile wide. They would both produce about the same power, but tidal barrage is intermittent, so less energy is produced in a year.

Blind, it registers wrist movement. 30 in all. That book was written in Helston.

My local Poundland has these fitness trackers for a tenner. The previous one I bought cost about 20 quid, and has been very good.

If you could see how much damage acetone can do to a body, you may have wished it was something else. But like all chlorine and oxygen based chemicals, they are fine in moderation.

Surely a dam will impede flow. They are used to increase the head, so a smaller volume of fluid is needed. Dammed hydro electric generation is really a combination of solar and gravitation forces.

I really don't know why acetone is sold as gun cleaner. It is really pretty poor at it. Works well with polyester resins, and some epoxies, when uncured, but little else.

Good advice, play them at their own game, but better.

Yes. And your nail varnish. It can also decaffeinate your coffee. No sure how easy it is to buy small quantities, we used to get 200 litres at a time.

Or just stick it in a buck of CH2CL2 for ten minutes. How we cleaned the PU moulding machines.

Not on he forum. I use a small, portable, graphics program called Irfanview. Copy and paste the image into the program. Press L to rotate left, and R to rotate right. Then just select, copy and paste it back into the forum text box. Takes a few seconds.

Yes. Think it was a college project to see how much energy runs down a downpipe.