frezik

@frezik@midwest.social

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frezik,

Some send table scraps to bigger organization, like the Apache Foundation. The millions of small projects that they depend on get shit.

frezik,

“Destroyed” by the famously straight Romans?

frezik,

Verbally, that’s pretty much what happened.

frezik,

What’s the center of this copper wire even for, anyway? I’m going around the edges.

frezik,

Slobodan Milošević was put to trial under a parallel organization, the International Criminal Tribunal for the former Yugoslavia. The ICC didn’t exist yet when the ICTY was founded.

Sloby died in jail before coming to a verdict.

frezik,

They kinda suck, and this isn’t likely to change.

The Hindenburg was 245m long, carried around 50 crew plus 60 or so passengers. It needs all that length to have enough volume to lift that many people. The laws of physics are a limitation here; even figuring out a vaccum rigid air ship would only slightly improve this (it’s a neat engineering problem, but not very practical for a variety of reasons). Maybe the crew size could shrink somewhat, but the fact is that you’ve got a giant thing for handling around 100 people.

An Airbus a380 is 72m long and carries over 500 passengers and crew.

The Hindenburg made the transatlantic journey in around 100 hours. You could consider it more like a cruise than a flight–you travel there in luxury and don’t care that it takes longer. You would expect it to be priced accordingly. In fact, given the smaller passenger size compared to the crew size, I’d expect it to be priced like a river cruise rather than an ocean cruise. Those tend to be more exclusive and priced even higher.

Being ground crew for blimps was a dangerous job. You’re holding onto a rope, and then the wind shifts and you get pulled with it. This could certainly be done more safely today with the right equipment. Don’t expect the industry to actually do that without stiff regulations stepping in.

Overall, they suck and would only be a luxury travel option. Continental cargo is better done by trains. Trans continental cargo is better done by boats. There isn’t much of a use case anywhere.

frezik,

The whole idea was losing out to the DC-3 already.

frezik,

Yes, that’s correct.

frezik,

They do plenty of ecodestruction. If we had them now, they’d be fueled by hydrocarbons. That could hypothetically be batteries in the future, but batteries good enough for that could do equally well in airplanes.

The material used in making them rigid also has a carbon cost.

frezik,

It wouldn’t be light enough. Panels weight about 19kg each for a 1x1.7m panel. This can probably be slimmed down for the application, but probably not by enough. Perovskite promises a lighter weight panel, but they still have longevity issues that are being worked out in the lab.

Why not put those panels on a boat instead? Or in a field and power a train?

frezik,

There are plenty of other options that don’t burn kerosene.

frezik,

Hindenburg used 4x 735kW diesel engines which need to be powered constantly (almost 3MW overall). That is the output at the shaft, which means we need electric motors that match that. Fortunately, electric motors are pretty efficient.

Thin-film can do 80-120W per m^2. That’s the rating when the sun is shining directly on them. We’ll assume it’s flying above the cloud layer and don’t need to worry about that.

At the top end, it will take 24,500m^2 of panels. Hindenburg had a length of 245.3m and diameter of 41.2m. If it were a cylinder (because I don’t feel like doing the math on its actual shape), it would have a surface area of 35,000m^2, but that includes the underside. It’ll probably pick up some power being reflected off the clouds or the earth’s surface, but you’re probably only getting 60% of the full power averaged over the entire surface.

Which is closer than I thought it would be, but not quite enough to power the motors if they were 100% efficient, and dropping it to the real world 85-90% won’t help. Neither will accounting for its actual shape.

frezik,

Then we have to ask about alternatives. French TGV trains output about 10MW, and can carry over 600 passengers. Three of the solar arrays for these hypothetical green Hindenburgs would run one train, and you’re not stuck with shitty thin film panels. The trains will move twice as many people.

If we’re talking cargo trains, those max out around 3MW, so just one of these solar Hindenburgs. They will carry far, far more cargo.

Things like propeller efficiency also apply to airplanes.

So we’re still stuck where things were going when Hindenburg burned away. Other things were surpassing it, they also improved in the time since, and there isn’t much point beyond novelty.

frezik,

Is there a way to take care of billionaires that’s not so hard to carry around on a bike?

frezik,

Don’t necessarily need to have a Ph.D. A professor of history once published a paper saying “No Irish Need Apply” signs were a myth. A 14 year old found counterexamples, and did a good enough job to get the takedown published.

independent.co.uk/…/rebecca-fried-the-14yearold-s…

frezik, (edited )

I demand the Magna Carta and the Code of Hammurabi be posted, using the same argument.

frezik,

By the time the system has consolidated enough that there is little effective competition, those companies have also become so large that they can lobby for regulatory capture. It’s not zero regulation, but rather a form of regulation that solidifies their position while still providing the same shitty service they always have.

Regulation won’t work. The system is too far gone.

frezik,

My doctor has added a few extra checks to visits so it can be billed to the insurance company as a general checkup, and not the specific thing I came in for that would bill at a much higher rate. I appreciate him doing that, but he shouldn’t have to.

frezik,

Yes. Since that clearly doesn’t work, what’s next?

frezik,

Stop expecting politians to be the source of change. The results will be lackluster, at best.

frezik,

That’s about right.

Federal prosecution is rare. If they charge you with marijuana possession at the federal level, then there’s probably a list of a dozen other charges on top of it, and at least one of them is the serious thing they’re actually after you for. Feds don’t waste their time with this shit unless there’s a bigger reason.

So what Biden did has very little practical effect. A bunch of people got one charge among many taken off their record. That’s what he’s able to do with just a stroke of a pen. The rest is dependent on states, federal congress, or the vast federal bureaucracy.

frezik,

Your lips do important work in making a trumpet play. Dolphins don’t have the fine control over their lips that would be necessary. Maybe the blowhole does?

frezik,

You’re right that consciousness and intelligence are not the same. Our language tends to conflate the two.

However, evolution created consciousness over billions of years by emergent factors and no source of specific direction besides being more successful at reproduction. We can likely get there orders of magnitude faster than evolution could. The big problem would be recognizing it for what it is when it’s here.

frezik,

We go orders of magnitude faster than evolution on tons of things. It’s not that big of a claim.

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