reattach

joined 1 year ago
[–] reattach@lemmy.world 4 points 1 month ago* (last edited 1 month ago)

Serious salvia flashbacks from that headline image.

[–] reattach@lemmy.world 3 points 2 months ago* (last edited 2 months ago)

Not only that, but they are the same species (different cultivars): https://en.m.wikipedia.org/wiki/Brassica_oleracea

Also, obligatory xkcd: https://m.xkcd.com/2827/

[–] reattach@lemmy.world 2 points 2 months ago (1 children)

Did you also know there's no talking crab in the original story by Hans Christian Andersen? Since we're being faithful to the original.

[–] reattach@lemmy.world 8 points 2 months ago (2 children)

It's a cool idea, but has not worked well in practice. The plant referenced in the 2016 article you linked (Crescent Dunes) stopped operation in 2019 due to performance and cost issues. It appears to have restarted after the original owner filed for bankruptcy and sold the asset, but at a lower capacity.

https://en.m.wikipedia.org/wiki/Crescent_Dunes_Solar_Energy_Project

[–] reattach@lemmy.world 15 points 2 months ago

Instructions unclear; I read to the tune of "We Didn't Start the Fire."

 
[–] reattach@lemmy.world 14 points 5 months ago* (last edited 5 months ago) (1 children)

A watt is a joule per second - they are not directly convertable.

[–] reattach@lemmy.world 24 points 5 months ago (2 children)

No one else is bothered by Chris thinking the first syllable of his name is "Chri"?

[–] reattach@lemmy.world 2 points 5 months ago

Carla was the prom queen!

[–] reattach@lemmy.world 5 points 5 months ago

Just a small note: the pressures in this chart are absolute, not gauge. In everyday usage (like talking about tire pressure) we mean gauge pressure - that is, the difference in pressure from atmospheric pressure.

Your overall point is well taken (the change in temperature doesn't matter much), but the numbers will be slightly different. For example, a tire filled to 100 psig (gauge) will reach 106.496 psig at 100 deg F, versus 105.663 in the original chart (assuming 14.7 psia atmospheric pressure).

[–] reattach@lemmy.world 1 points 6 months ago

Which is great, but I'm sure your plant deionizes the water before using it in the electrolyzers, right? So the water is still being purified, just not by a public water plant.

[–] reattach@lemmy.world 2 points 6 months ago

This is not correct. All commercial electrolyzers need very pure water as a feed to the system. PEM and SOEC electrolyzers use the ultrapure (industry term) water directly, while alkaline electrolyzers combine it with potassium hydroxide. Using sea water will very quickly result in non-functional equipment.

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