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Comment Re: Ban LiPo and NCM now (Score 1) 7

Small correction: oxygen is released by the cathode material

Thanks for that.

I'm afraid asking people at the check-in desk whether their no-name battery pack has LFP or NMC cells wouldn't be conclusive though.

That's why their sale has to be banned. It won't help with the units already in the wild, and obviously some will slip through, but it can still reduce harm.

Comment Re:Sure, for now (Score 1) 89

If we're going to have a SMR at every data center, shouldn't the same vulture capitalists bankrolling chatgpt also chip in a few billion to move past the conceptualization phase?

We aren't, but sure, that would make sense.

It's never, ever going to make economic sense to put a single SMR at a data center when you could put multiple SMRs on a site which makes more sense. But by the same token, that will never make sense either when you could save on per-unit costs by putting a smaller number of larger reactors there. And just to follow this line of thinking to the logical conclusion, that's never going to make sense either while it's cheaper to do renewables plus storage.

Comment Ban LiPo and NCM now (Score 4, Informative) 7

LiPo and NCM Li-Ion batteries are inherently hazardous as they are prone to thermal runaway once problems begin.

LFPs (LiFePo4) can combust, but the danger is much lower because their electrolyte does not emit oxygen when heated. This makes them both less likely to combust, and easier to extinguish.

Once we have readily available safer chemistries (solid electrolyte?) we could look at banning LFPs as well, if that turned out to make sense. But we should especially just ban NCMs completely as they not only are high-risk (both ignition risk and the increased risk of being difficult to extinguish) but also are most toxic when they burn since they contain cobalt electrode material in exactly the way LFPs don't.

Comment Re:Need to compare to helicopters (Score 1) 34

As others have said "taxi" is a total misnomer

We already refer to existing flights with similar characteristics as "air taxi" service.

these will only be able to fly between specific ports, with the same restrictions as helicopters

Which are already providing service known as "air taxi"

That means that for most short trips, a car / limo will be faster.

Unless those short trips are city rooftop to rooftop, or city rooftop to suburb, and occur at peak traffic times. Which is mostly what "air taxi" service is used for now.

Is there a range of trips where there is a working business model? Maybe, but its not clear.

This is already a working business model with helicopters right now, so it is very clear. Helicopters have very high TCO, so it would be surprising if this wasn't more cost effective.

Comment Re:The only valuable Intellectual Property (Score 1) 17

Trademarks are sometimes abused, but they are not useless. They let people know what the source of something is when combined with the year of its production. They are also valuable to the owners in and of themselves if they are protected, because people purchase things based on them.

Comment Re:Fusion .. the only way forward (Score 2) 89

Just as capitalism can be influenced to protect consumers from its worst excesses, it can also be influenced to make its excesses worse.

Corporations absolutely can buy laws (in the US these days, by bribing just a single person who wears a lot of orange makeup) which prevent citizens from installing their own solar power systems.

Comment Re:what about an battery door on the phone? (Score 1) 36

You analogy is out of date.

Maybe your TV manufacturer just sucks. Mine does too (It's an LG and WebOS is trash) but they don't suck so badly that they denied me a battery door on my TV remote.

Are you really going to take your TV remote in for battery replacement when it's trivial? There's good odds they won't have a battery for it in stock at your local phone repair place, or if they do have one which will fit, it'll be lower capacity and then it will die again sooner. Seems like it makes sense for a person who knows what they're doing to replace the pouch cell themselves.

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