Kata1yst

u/Kata1yst@kbin.social
21 posts · 448 comments

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on Music to my ears · c/memes · 10 pts · 2y

Nah. Derision, public shaming, and ostracism are fundamental to the maintenance of the social contract. How else can we moderate extremists? The denazification of Germany was effective because they didn't shy away from these methods.

on *Permanently Deleted* · c/linuxmemes · 7 pts · 2y

Over the years of using Vim both professionally and for my own uses, I've learned to just install LunarVim and only add a handful of packages/overrides. Otherwise I just waste too much time tinkering and not doing the things I need to.

on Side quests are key · c/avatar · 9 pts · 2y

I have the same feeling.

I think it's due to how knowledgeable, practical, and yet pessimistic Watney's inner monologue is through the book. It's one thing to see something go wrong on screen (they did show all of the major issues as far as I recall, and a few minor ones too), it's another to have the main character scientifically dissect exactly how fucked he is or will be if the next attempt at a solution fails.

on "Cheeseburger" · c/foodcrimes · 1 pts · 2y

In the baking world that is absolutely true. But it's sometimes used more broadly in my experience, idk.

on "Cheeseburger" · c/foodcrimes · 23 pts · 2y

A double boiler, sometimes called a "hot water bath".

Basically a container with what you're cooking inside over the top of a pot of heated water.

It heats things up evenly and gently.

on The decline of Intel.. · c/technology · 29 pts · 2y

2009 era was also when Intel leveraged their position in the compiler market to cripple all non-Intel processors. Nearly every benchmarking tool used that complier and put an enormous handicap on AMD processors by locking them to either no SSE or, later, back to SSE2.

My friends all thought I was crazy for buying AMD, but accusations had started circulating about the complier heavily favoring Intel at least as early as 2005, and they were finally ordered to stop in 2010 by the FTC... Though of course they have been caught cheating in several other ways since.

Everyone has this picture in their heads of AMD being the scrappy underdog and Intel being the professional choice, but Intel hasn't really worn the crown since the release of Athlon. Except during Bulldozer/Piledriver, but who can blame AMD for trying something crazy after 10 years of frustration?

Nope! And most hydrogen is fossil fuel (methane) derived and horribly energy inefficient. At this point it's green washing at best.

Edit: adding data:
Steam-Methane Reforming (SMR) accounts for about 95% of all hydrogen production on earth. It uses a huge amount of heat, water, and methane to produce hydrogen.

https://en.m.wikipedia.org/wiki/File:SMR%2BWGS-1.png

For inputs:

  • 6.2MWh of Heat
  • 2.2 tons of Methane
  • 4.9 tons of pure water

The outputs are:

  • 6 tons of CO2
  • 1.1 tons of H2

The overall energy in vs energy out is at most 85% efficient. https://www.sciencedirect.com/science/article/abs/pii/S0016236122001867

Hydrolysis, the main competing method, and the one most touted by hydrogen backers, accounts for about 4% of hydrogen production.
This method takes in only pure water and electricity, but it's efficiency is abysmal at some 52%. In every case, a modern kinetic, thermal, or chemical battery will exceed this efficiency.

Other methods are being looked into, but it's thermodynamically impossible for the resulting H2 to produce more energy than it takes to create the H2. So at best today we could use H2 as a crappy battery, one that takes a lot of methane to create.