Lithium-iron is about 2x more expensive, there might be different availability and energy use during manufacture is probably higher

Lead-acid batteries work if you don’t care about weight and lithium-iron phosphate if you do

AC also needs to deal with line resistance, and cheap, efficient multi-MW, multi-kV DC/DC converters aren’t there so far, but there are prototypes (and drop-in transformer replacements https://en.wikipedia.org/wiki/Solid-state_transformer) Advantage is that these converters can be more efficient than transformers and you don’t have to deal with reactive current (if DC). Obvious downside is that frequency control isn’t there

if power electronics get a bit better than they are now, we could switch to DC power transmission and DC/DC converters instead of transformers. bunch of infrastructure could be replaced one by one, but benefit is slight except for already used undersea cables

but on generation side, it’s either photovoltaics or spin a magnet

Somebody in the lab asks you to get them an E-plane bend or an H-plane bend. You can’t remember which way the fields go in the waveguide, but you don’t want to look stupid by asking. Don’t panic, there is an easy easy way to remember which is which. The E-plane bend is bent the “easy way”, and the H-plane bend is bent the “hard way”, which you can see in the photo below. If it isn’t obvious to you what is meant by easy and hard way when you are bending something of rectangular cross-section, it is not too late to consider a career shift to the software industry

Not really, there are also polyesters and polyamides. These used here are hydrocarbons, and turns out there’s a tool for that. You see, in oil refining there’s a lot of stuff manufactured that it’s useless without further processing, as in, after distillation and vacuum distillation you might end up with half of weight of oil or more as asphalt or heavy oils that barely can be sold. So in order to make them useful, these products are broken down into smaller molecules, and then are separated again. What they’re doing is similar to process called hydrocracking that is commonly used to turn heavy vacuum distillates, think something like motor oil or other greases, to diesel

If one were to make hydrogen producing solar farm specifically, this could have made sense if there were efficiency gains compared to pv + electrolyser. But there ain’t, and from what i understand won’t be

Ye i’ve seen that before. Perennial problem with this aporoach is that efficiency is capped below what pv panel can get and also now instead of wiring you need to install purified water + hydrogen plumbing. Also while you just can use only excess of generation for electrolysis, this is always on

neuralink endgame

check again, works for me just as usual

it might be reddit just fucking up, i got the same error while logged in

i guess that fb does store keys after all; they do respond to police requests

i also found this: https://www.reddit.com/r/privacy/comments/v7tsou/is_whatsapp_lying_about_its_endtoend_encryption/

Encryption in WhatApp is actually a fake, because the encryption keys are generated and stored on Facebook’s servers, accordingly, they can read any of your messages as plain text, and the intelligence services obviously have access to them.

Also a few months ago there was a leaked slide from an FBI training course or something where they compared different messengers in terms of how well they cooperate with the police, guess who came first ?

WhatsApp provides data to the police in near real time (about 15 minutes from the time of the request)

The message from WhatApp at the beginning of the chat - that your data is not available to third parties is the height of hypocrisy.

whatsapp is not meaningfully e2ee

sounds like it’s not supposed to be a general use tool, but instead for counterintelligence only:

The Ministry of the Interior anticipates submitting around 30 requests per year for the surveillance of unencrypted messages and between 5 to 15 requests for encrypted communications. If there are 30 instances of encrypted message monitoring within a single calendar year, the Interior Minister is obligated to inform a permanent subcommittee of the National Council, which is the directly elected chamber of the Austrian Parliament.

Each surveillance method will require case-by-case approval from the Federal Administrative Court. The process involves a legal protection officer from the Ministry of the Interior, who will have three business days to respond to any request. Following that, a panel of three judges from the Federal Administrative Court will review the case. In urgent situations, an individual judge may grant approval, supported by a 24-hour judicial service system.

https://themunicheye.com/austrian-government-approves-malware-surveillance-23431

broad use would expose its existence and make any 0days useless in short order

firefox at minimum clears the very low bar of not exposing casual user to crypto