SteamyTea

Only if it not 40 years ago.

Do they have milk and alcohol? Only Dr I ever needed

I think the OP @Selina has run away.

The comments are interesting.

It is a bit, but it comes down to the Ideal Gas Law and Fluid density changes. Actually it is entropy, the state of disorder. A liquid has lower entropy than a gas: it is more ordered. All that means is that when a fluid is in the gaseous state, it is easier (takes less energy) to increase the temperate, mainly because the colder molecules, or atom in an ideal gas, are slower moving, so easier for the photons (which are the particle that transfer the energy) to hit (raise the energy level of some of the electrons). (that is a crude 'mechanical' model, but easier to understand than the quantum model, well the sums are easier)

There is a point, and it varies with other material properties, where increasing the outside area because of thicker insulation, actually increases the losses. Might just be for pipes though, corners make thermal modelling tricky, why I use the simplified method of adding the wall thickness area to the exposed area. Makes sense to me. So take a simple wall that is 5 metres wide, 5 metres high and 0.25 metres thick, normally the exposed area would be 25 m2, but because of 'edges and corners' it is actually 30 m2. It over estimates the losses, on thicker walls, but that is the better way than underestimating. Shared edges/corners can have a reduction, so half wall thickness.

4 quid gets you a sign for the path.

Was it @Nick Thomas that built his shed out of weeds and twigs last summer?

Have you thought about putting integrated PV on your roof. That way you will only have a few tiles to fit around the edges, on the sunnier side. Will get some electricity as well.

What is the thermal conductivity? I can't find it.

If you think it was fraud, it may come under criminal law now, rather than just a civil dispute.

It isn't, technically. But generally most people will get batteries fitted correctly, and signed off. The problem is not so much with the first users of vehicles that have V2G, it is down the line when the third owner, a man is in a shed who knows better, decided to DIY it.

That is quite true, but it may be better to get some EVs to an emergency discharge point, maybe a local substation and get them plugged in there. It may be possible to modify charging stations for that. That way there would be more control. In my lifetime there has been two main reasons for power outages. Industrial Action Grid Damage I doubt the first is going to happen the same way again and if the grid is damaged, you don't want the possibility of power in the lines. So maybe the better way would be to have 2 or 3 10A constant power outlets on a car and a few extension leads. It is probably safer than a bit of a free for all connection scenario.

Better than highly. I wonder what the implications to the local electrician grid could be with say 50% of houses pumping a few kW into the grid would be. Isolation could be fitted, but then people don't want to pay extra for that, they complain enough about the cost of fitting a piddly 7kW point as it is. Don't get me wrong, I like the idea of V2G and V2H, but I think it is more complicated than people think.

My WiFi at home is an old Motorola E5, it has a UPS built in that will last a day (really should see what it does as I have a script that will ping Google and log the times). This thread is turning into a 'preppers' topic. AK47 will protect your private supply.

My car, at tickover, uses 0.1 gallons/hour. That is about 0.45 kWh, so call it 500W. Only a small amount of that will be electrical generation. Let's be generous and say 200W, or 16A. To deliver more, the engine will have to run at a higher speed.

Tell then it is OK as you have a Ventongimp in place.

Welcome. Energy science is pretty basic stuff, it is all in the detailing.

I have an all electric house, only had one long power cut in that time. I have a camping stove, so can make tea. Sometimes that is good, other times bad. Jenny Tonge got the wiring regs tightened up after a bad installation killed her daughter. Not as though they can change legislation in isolation.

I think 'dangerous' is the wrong word. Having spent an interesting hour looking at some research papers about wheat growing, to get away from manufactured fertilisers, farm yard manure is used. To increase soil carbon content, biochar is used. So to grow some wheat, we need to intensively farm some cattle and burn some woodland. Can we griddle the steak while making the charcoal. Nice one.

That about sums it up. More paperwork than ingredients, though we tend not to poison people these days.

When at work, I often say "Let's make an easy job difficult'.

A joule is equal to the amount of work done when a force of one newton displaces a mass through a distance of one metre in the direction of that force. A joule is not very large. Are these drills really small, or have they missed a k (kilo) in the literature.

It almost certainly is. I was told once that filling my bedroom with elevated levels of O3 would cure my hayfever. Nearly (expletive deleted)ing killed me.