• 0 Posts
  • 256 Comments
Joined 3 years ago
cake
Cake day: November 4th, 2023

help-circle




  • Yes. You are always adding net energy to the system. That’s why a heater is a self-contained unit (turns energy into heat) while an air conditioner requires two units- one to suck up the heat outside, another to reject that heat outside. It’s not ‘creating cold’, it’s using energy to pump heat from the inside to the outside. The total amount of heat rejected outside is a net addition- it’s the heat sucked up from inside, plus the waste heat from the compressor.

    The air conditioner (current design) works on the simple principle that the boiling point of a liquid changes based on ambient pressure, and that phase change (between liquid and gas) carries a lot of latent energy. To boil water with heat alone, it takes about 100 calories to heat a gram of water from just above freezing to just below boiling. But to boil it, to heat it less than one more degree and turn it into gas, takes another 433 calories. That means if you adjust its boiling point by pressurizing and depressurizing it, whenever it boils or condenses it’ll suck up or release a lot of heat at the same time.

    Obviously we want colder than 100c, so we use a refrigerant like tetrafluoroethane with a boiling point of -26c.

    This gadget uses a similar concept. Instead of using pressure to tweak the boiling point of a refrigerant, it uses a solid that heats or cools in response to pressure. Then water carries the heat around.


  • Yes but China, Russia, Iran, etc all have national-level firewalls in place. You can go in China and chances are your VPN won’t work, and if it does the whole country is fucking network-hostile (like I’ve seen reports of the USB charger ports in hotels trying to hack into phones).
    UK, as far as I know, doesn’t have any kind of similar national level firewall. Nor does USA or most other ‘civilized’ nations.

    And without that national firewall, all these laws are crap. Because unless you’re physically prevented by the firewall from downloading or using VPNs or similar tools, all the laws in the world are just a padlock on a cardboard box.



  • The problem is that the internet is fucking global. As long as that is the case, it is simply not possible to fix this problem.

    You can put whatever regulations you want on online content, and some provider from a different jurisdiction is going to say screw you I abide by the laws of my own jurisdiction. The restricted citizens will use that company.

    It is like making drugs illegal when there is still an illegal drug dispenser in every home. It doesn’t work.

    The most you can do is try to block this at the payment level, but that requires setting up a very intrusive payment blacklist or whitelist system. And then some VPN provider will just make themselves ad supported and you are back at square one.

    And that doesn’t even touch the issue of torrents, p2p file sharing, and decentralized networks. Go back to the early to mid-200s and everybody used those things because most of the content they wanted wasn’t easily available legally. Then it became easily available and people started paying for it. But you throw enough roadblocks, make people subscribe to too many streaming services, require too much age verification type crap, and the world will sail the high seas once again.




  • The problem is it’s not just ‘form a union’. In most cases unionizing means joining a much larger union that covers many hundreds of companies. And it will mean that all questions of compensation or discipline then have to go through a union contract. It means more paperwork and less flexibility.

    If there is trust between workers and management, then workers often don’t see much benefit to going through all this. And that’s why the guy said every shop that went Union deserved it, because those shots all tried to save money by screwing their employees and so the employees fought back and unionized which ended up costing the company more than if they had just paid the workers correctly in the first place.


  • In most cases here unions are fairly large organizations where the larger union covers dozens or hundreds of companies. So it wouldn’t be like ‘Bob’s maintenance shop union’ it would be like ‘international brotherhood of machinists union chapter #1234’.

    And when that is done, the relationship between the workers and the company changes. The union will negotiate a specific contract with the company which all workers and all jobs then are covered under. This provides a lot stronger protections for the workers, but can also be less flexible in some cases. And of course the worker has to pay dues to the union, it’s usually not that much but it’s not zero.

    Point is, if the workers are happy and have good relations with management then they often see no reason to go through all this.

    On the other hand when management starts turning the screws and tries to make more profit out of the worker compensation, then it’s absolutely time to unionize and workers are even more seeing that.


  • I once was on a tour of a non union maintenance shop, in an area where most similar shops were union. One of the people on the tour asked the manager about this.

    His answer- ‘Every shop around here that’s gone union, has deserved it. I pay my guys above average, I don’t flip out when they take time off, and we have decent health insurance. My workers are happy- when the union comes calling it’s the workers who tell them to get lost.’

    If WotC is going union, they probably deserve it.



  • Please understand that this is not due to any sort of bubble. Especially not with memory.

    OpenAI has themselves purchased a significant percentage of the world’s memory production for 2026. The negotiated in secret with two different manufacturers, announcing the deals on the same day. Neither manufacturer was aware of the other, and both have said if they were they would not have made the deal as it sent a significant percentage of the world’s memory production to one customer.
    More interestingly, the deal was not for memory chips. It was for finished wafers, which themselves have to then be sliced into hundreds of individual chips, which each need to be tested and packaged in the black casing we call a chip. As far as I am aware, OpenAI has no capability to do this. Which means they may have purchased a significant percentage of the world’s memory output only to throw it in the garbage and keep it from their competitors.

    My understanding however is that this deal was for 2026 production. Go to next year, there may be an improvement.