echodot

What sources?

The article doesn't list any. All it says is they reached a cooling temperature of -12°C, but has no information on the energy used to achieve that.

For some bizarre reason they have decided that they need to appeal to reform voters as if they would ever vote for anyone else. Labour strategist are clearly terrible.

I said this from the start, there was never any chance for Burnham to become a Labour MP as he is so clearly an automatic threat to Starmer. It's just like BoJo all over again, they can't be having anyone effective in the party, as that would ruin the fun.

They just really want to be your friend and if at all possible slightly drown you. But in a friendly way.

Now we come to the section of the show we would really like everyone to switch off from, where somebody with an actual qualification and experience in the subject matter explains how we've spent the last 45 minutes effectively lying to you.

Well of course, first and foremost he likes their small hands. It makes him feel more naturally proportioned.

I don't think they thought this one through. You absolutely don't want to be putting republicans on stage with comedians that's a really bad idea.

Most of these shows would love to get a republican on so they could ask them very simple questions that they know they won't be able to answer.

Plus if you ever get bored and there's a police helicopter hanging around you can always just take it outside and just hold it.

They are not new technology the idea has been around since at least the 1980s. There is a reason we don't use them and it's because they are mechanically complicated and inefficient. Those in terms of power use and maintenance requirements.

However with the move to renewable energy maybe that efficiency limitation isn't as much of a problem as it used to be. Especially if it means you can get away from toxic compounds.

Although I have never seen a commercial grade implementation of the technology. It's always just been demos that don't really achieve enough cooling to be anything other than a curiosity.

I don't think shape change materials are all that efficient. The problem being is you still need some mechanism to compress the material again, which obviously uses energy. As you say their main advantage is that they don't use traditional refrigerants. But the trade-off for that is that they are mechanically more complicated and probably for any given amount of cooling will require more electricity.

You can trade those off with renewable energy sources of course so it may still be worth it but technically they are worse efficiency than traditional vacuum pumps.

That's thermodynamically impossible but ok.

When you cool something you take heat energy out of it you have to do something with that heat energy you can't just delete it.

Yes it's a discworld quote

“There’s no greys, only white that’s got grubby. I’m surprised you don’t know that. And sin, young man, is when you treat people as things. Including yourself. That’s what sin is.’ ‘It’s a lot more complicated than that -’ ‘No. It ain’t. When people say things are a lot more complicated than that, they means they’re getting worried that they won’t like the truth. People as things, that’s where it starts.”
― Terry Pratchett, Carpe Jugulum