PuddleOfKittens

@PuddleOfKittens@sh.itjust.works

• ⁨Comment⁩ on ⁨Terraform Industries actually created synthetic methane from sunlight, water, and air⁩ ⁨⁨1⁩ ⁨day⁩ ago⁩:

  It’s useful because (besides displacing fossil methane) it’s a stepping-stone to producing methanol, which can be used to produce propane, which has a lower greenhouse coefficient per gram than CO2 (and also displaces fossil methane).

• ⁨Comment⁩ on ⁨First sodium battery urban e-bike offers 45-mile range and operates in cold weather without capacity loss⁩ ⁨⁨5⁩ ⁨weeks⁩ ago⁩:

  There are salt flats and salt mines, which are potentially cheaper than desalination (they’re literally just digging up the ground and putting it into a truck), but desalination also has a huge excess of salt that ends up being dumped into the ocean; more sodium demand would be good for the environment.

• ⁨Comment⁩ on ⁨The State of Lemmy (drama)⁩ ⁨⁨5⁩ ⁨weeks⁩ ago⁩:

  I still prefer SJW to any other instance

  o_O I hadn’t noticed that acronym before now.

• ⁨Comment⁩ on ⁨Turning automotive engines into modular chemical plants to make green fuels (discussion: is this a useful tech?)⁩ ⁨⁨2⁩ ⁨months⁩ ago⁩:

  A port is a slot for ships. Really big ships requires really big slots. The biggest modern ships are over 500 meters long. And dry docks require you to float the ship in, then seal it in and be able to drain the water out - given that those ships are ~50m wide, you’re talking about a huge construction project just to serve one ship at any given time. Turnaround for ships can be hours or days, so you might want multiple bays.

  It might well be cheaper, to just have a small ship with a crane or something. Then you don’t need to build a 500mx50m swimming pool. In imperial, that’s 20 olympic swimming pools.

• ⁨Comment⁩ on ⁨Battery Electric Vehicles still being shunned by EU buyers⁩ ⁨⁨2⁩ ⁨months⁩ ago⁩:

  What happens in a society when EV reach 90-95% market share? What happen when the last petrol station goes bust?

  The same thing as when cars were first invented, before petrol stations existed: you buy fuel in cans from stores. They used to buy petrol from chemists in the 1900s, but I imagine that today/in future they’d be sold at hardware stores or ordered online.

  I’m somewhat doubtful petrol stations will all go bust though; long-haul trucking really favors petrol/diesel, and by their very nature of having a long range, they don’t need the petrol stations to be that frequent. Especially since the infrastructure is already built, it just needs to be maintained.

  Also, obligatory reminder that electric cars are not the solution: fixing car-centric cities so they’re more walkable and have decent train systems is the solution.

• ⁨Comment⁩ on ⁨Turning automotive engines into modular chemical plants to make green fuels (discussion: is this a useful tech?)⁩ ⁨⁨2⁩ ⁨months⁩ ago⁩:

  "In the future, we’re going to need green fuels because you can’t electrify a large ship or plane — you have to use a high-energy-density, low-carbon-footprint, low-cost liquid fuel,”

  Large ships are perfectly capable of being battery-powered. In fact, battery cargo ships might well be cheaper than oil-based ships: austinvernon.site/blog/batteryships.html