Echo Dot

It took about a century to get decent electric cars so I stand by my statement. It may no longer be true in the 22nd century, but there are fundamental issues with this technology that have not been addressed. I can’t imagine where likely to see solutions anytime soon, mostly because I don’t think there are solutions, I just don’t think the technology works.

Pressure change refrigeration is just so much more efficient. The light on your refrigerator consumes more energy than the refrigeration process, so it’s not like there’s even a massive impetus to make the system even more efficient because it barely uses energy as it is.

Where this technology might come in handy is where size is a severely limiting factor. Such as on satellites or small drones.

No one’s saying the technology isn’t interesting just at the article is rubbish.

Who wrote that headline anyway, the headline should have been scientists have created sub-zero solid state cooling, but the writer somewhat arbitrarily decided that this was about environmentalism which this has got nothing to do with.

The scientists are not even making the claim that this is a necessarily viable technology, it’s just a thing that they’ve managed to achieve.

I’m surprised the article writer didn’t do the usual thing that science “journalists” tend to do, which is claim that it kills cancer. So we should be thankful for small mercies.

What through a wormhole?

There’s a lot of air between the refrigerator and space I think it might get in the way

I’m asking what saurce you have that says that they are more efficient than refrigeration systems because everything I find says the opposite.

Refrigeration already is cheap. The problem a lot of places have is not an inability to afford a refrigerator it’s no energy to power the refrigerator. This technology does not into address that problem. In fact it probably worsens it because this technology is less efficient in terms of power consumption.

Also I would love to live in the world where you live because over here food costs money. It isn’t free.

That’s reflection of external heat not removal of internal heat. Refrigeration requires effort and therefore energy.

That’s also impossible. Anything that does work generates heat, it’s a fundamental law of thermodynamics.

There is no such thing as a thermally neutral mechanism, because all energy is eventually thermal. You can reflect heat, as in you can prevent heat from being added into a system via thermally neutral mechanisms but you can’t remove it without exerting energy.

Did a damn lot more than old trumpy pants did. His excuse for not fighting was essentially that he had some bad bones, and for some bizarre reason the military accepted that answer.

Been from a rich family he would have probably been shipped to some logistics base and never seen combat anyway.

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.

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.

It will be rubbish but the problem is everyone’s doing it so there’s no options other than forking out half your mortgage to Apple for high spec MacBook.

If I have the money I would definitely get it just to try it out. I am going to get the keyboard though.

You’re just making numbers up now. there’s no way that a $200 phone is going to be any good. Especially if it’s a niche product like a Linux phone.

Come on you got to be even moderately reasonable

Just out of interest how long do you keep a phone because I feel like 5 years is pretty much around the time everyone’s looking to get a new phone.

Yeah but you gave back James Corden so you owe us one.

Shows what you know.

Seriously you might want to look it up because majority does not mean 51% of those who bother to turn out. Which was mostly no one because it was seen as a political performance piece and not a real idea.

Then the idiot government screwed it up further by running headlong into a brick wall with zero plan. It was always going to be bad but they could have managed the split better.

What an insane position for them to take. It isn’t the US there was more than two parties. Hell they can see that because they’re talking about reform.

Just tell them to vote Green. Or maybe Labour if they get their act together over the next few years. There’s always the possibility that Burnham will be in charge by that point.

He’s definitely taking Russian money, so with any look they’ll lock him up.

The problem is Labour are being a bit spineless and are concerned about the investigation being treated as a political assassination attempt. I don’t know why they’re bothering to concern themselves as reform voters aren’t exactly facts oriented people and would claim that anyway. Frankly Labour just need to get a grip.

It’s pretty poor showing for a human’s rights lawyer I must say.