addie

Hey! The images of Ryugu that were taken from Hayabusa2. What a sad lonely rock that place is - a loose collection of boulders in an endless orbit, in which it will probably continue without further interaction from now until the end of time. You could sneak a few ghosts onto that place, right enough, and no-one would notice.

As an aside, the Mars rovers are much larger than this - we don't see them side-by-side with people for comparison very often. Curiosity is the size of a car - three metres on a side, two metres tall, and weighs the best part of a tonne.

Heard it doesn't take him much at the moment - the slightest chuckle will probably do.

It's one of those materials that has an almost complete list of superb properties, with one overwhelming downside. It's cheap, abundantly available, completely fireproof and can be woven into fireproof cloth, adds enormous structural strength to concrete in small quantities, very resistant to a wide range of chemical attacks. It's just that the dust causes horrific cancers. See also CFCs, leaded petrol, etc, which have the same 'very cheap, superb in their intended use, but the negative outweighs all positives'.

One of the 'niche industrial applications' was the production of pump gaskets in high-temperature scenarios, especially when pumping corrosive liquids. We've a range of superalloys that are 'suitable' for these applications - something like inconel is an absolute bastard to form into shapes, but once you've done so it lasts a long time. But you still need something with similar properties when screwing the bits together. For a long time, there was no suitable synthetic replacement for asbestos in that kind of usage.

If you know that the asbestos is there, have suitable PPE and procedures, then IMHO it's far from the worst industrial material to work with. It's pretty inert, doesn't catch fire or explode, and isn't one of the many exciting chemicals where a single droplet on your skin would be sufficient to kill you. What is inappropriate is using it as a general-purpose building material, which is how it was used for so long, and where it was able to cause so much suffering for so many people.

From a UK perspective, a lot of US cars would be illegal to drive on public roads here - too large, too dangerous for pedestrians and other road users. "Dangerous" also applies to some of your other potential exports too. Chlorinated chicken, for instance, isn't considered safe for consumption. So the absence of a market for those goods isn't simply "customer preference".

As a European, we've been too dependent on the US on some things for too long. We need to be more independent. The situation in Ukraine has shown that; we need to be able to support our allies better. But the US trashing their own economy, making themselves into global pariahs and handing over their superpower status to China is what I would have described as "not my dream way" of achieving that.

The real advantage of a 120 Hz screen is that you get a much more graceful degradation if you dip below your fps target for a bit. If you're targeting 30 fps but drop to 25, it still feels pretty smooth on a high-refresh screen, whereas that's appallingly clunky on a low-refresh one. A "poor man's gsync", if you will.

They're occasionally the crisp of choice in pubs; an excellent accompaniment to an 80/-. Suppose there's worse criteria for your pub crawls. But aye, a weird omission - you'd be thinking there's plenty of wagons on the Stranraer ferry that could bring a few palletloads over.

Undoubtedly right, but might give the impression that iron is used because it's a better material for weapons than bronze - that's not its advantage.

Bronze is harder than iron, and holds a better edge - bronze knives are lighter than iron ones. (Harder metals aren't necessarily better for swords, tho, as they'll shatter rather than bend.). It also doesn't corrode so readily. Bronze can also be worked around 1000 °C, which can be achieved with primitive forges, whereas iron needs about 1250 and needs much better tech.

The first real advantage iron has over bronze is that iron is everywhere, whereas bronze production needs tin mines, and they're quite rare. If you can achieve the heat, it's much easier to equip your whole army.

The second advantage iron has is that if you can achieve about 1500 °C in your smelter, and you've mastered getting 'some but not too much carbon' alloyed with it, you can make steel, which is a huge improvement over bronze. That's generally not tech that could be achieved by ancient societies, though.

Hey! Spoiler alert for Shaz's change of haircut. At least it doesn't show her making sandcastles, I suppose.

A binary tree is one way of preparing data, usually for sorting. Each node can have a left, right, or both, children.

  A
 / \
B   C
   / \
  D   E

"Inverting the tree" means swapping the children for each node, so that the order that the nodes are visited is reversed. Depending on whether you want to copy the tree or swap it in place then the algorithm is different. C++ provides iterators too, so providing a "order reversed" iterator can be done efficiently as well.

You're going to have to visit every node and do at least one swap for every node, and an efficient algorithm won't do much more than that. Bring unable to do it suggests that the student programmer doesn't understand stacks or recursion yet, so they've more to learn.

It's easy to tell the difference between stoats and weasels. One is weasily recognised and the other is stoatally different.

Lunacid is awesome - old-school dungeon crawling with slick controls. The speed and smoothness makes fighting all the old enemies new again.

The Kings Field games are... very hard to love. They're old-school dungeon crawlers with the most awful, clunky controls that you can imagine. They're all "pre-Miyazaki" FromSoftware games; don't expect many Souls-like touches. Getting killed by a skeleton because you can't turn round to face it in time, or falling down a hole because judging how far you've walked forward is difficult? Far more likely.

A Lunacid follow-up with a little more Ultima / Wizardry about it would be amazing. Bit more environmental variety, a few more RPG trappings, and for the love of all that is holy, a minimap. But I can't see how that would be better done in Sword Of Moonlight rather than just adding them to their existing engine.