Wind turbines used to absorb a power surplus?

Yes, I had the same and works great in the house. However, I also ran a steam plant with a couple of boilers. It does not work the way you think it does. I've also been in large power plants running steam boilers for electricity.

Get back to me when you figure how to maintain 200psi with just some insulation.

No, I don't need to do that. You do.

The earth is still with a molten core. That's because it has a large volume to surface ratio and some fairly good insulation, and nothing is keeping it warm apart from a smidgeon of decay heat

No you haven't. maintaining 200 psi is easy with out any insulation . any tractor tyre can do it.

You have no idea about the underlying physics of anything. You just know what your limited experience made you *think* was the case.

This ain't hard to Google:

Some gets burned, some pulped into paper products.

Do you fill your tires with steam?

But 200 PSI is an interesting pressure for a tractor tire. Mid-20s is more common.

So what is the temperature range of that tractor tyre? What is the pressure difference as temperature changes? They do lose pressure as the temperature drops, physics at work.

A I said, get back to me when you see reality of running steam boilers. Your ego will explode once you learn about them from practical experience.

If you had tire pressure monitors on a very cold morning you would learn a bit about the ideal gas law.

No they dont. Not according to what i can find. 1000F yes, 2000 psi no

My bad, I was thinking of lorry tires

The contention was that it took a LOT OF energy to keep something hot for any length of time.

My assertion is that with perfect insulation, it takes none, and in the real world it doesn't take a lot.

Heat loss from large structures is far far slower than smaller ones anyone who stops to think about a tank of hot water versus a teaspoon of it will know.

And red herrings about pressure are irrelevant, Pressure can be maintained forever inside a sealed enclosure.

The issue is simple. How much heatloss is there from a well designed well insulated steam boiler at 600°C and therefore how much energy does it take to keep it there?

I'm sorry, I assumed a better understanding of physics in people here

But the pressure is variable with temperature change. In cold weather my tire pressure can drop 3 psi overnight. It will also increase as I drive, especially in hot weather and a 5 psi increase is common.

Not a red herring, but reality.

More than you think. Get yourself into a power plant and take a look.

You should be sorry that your theory does not play out in the real world. Life is more than reading a book.

If your computer can access usenet, why can't it access google?

Unless the UK is quite a bit different, truck (lorry) tires typically run around 100 psi.

Firestone says not to exceed 35 psi. to set the beads on farm tractor tires. I remember the techs adding calcium to give them more weight about a half century ago. Now the emphasis seems to be on traction plus soil compaction.

No, you're trying to bullshit your way out of a corner.

Sorry, but my brain instantly range-checks numbers. Newspapers and web sites are annoying because journalists always mess up numbers. They freely interchange million and billion and trillion, as a certain President constantly does.

The rough range checking is good in engineering, to estimate, say, temperature rise of a pullup resistor. 5 volts, 1K, don't even think about it.

The sensors themselves tend to fail when they get old and cold. That's probably the cause of most warnings on cold mornings. I'd expect that tire pressure doesn't change much on cold days: we're pretty far away from absolute zero.