It doesn’t make any sense that you’d need tongs to make tongs; just hold the workpiece. Maybe you cant draw out the reins quite so much on your first one. (Ok im a modern blacksmith that assumes the existence of rolled bar as a source material)
But a hammer! How do you make a hammer without a hammer?
Find a chunk of raw metal (possibly meteoric iron, more likely copper) of a suitable size/shape, find a tree, using a sharp rock, saw off a suitable branch, split it open, insert the metal chunk, using vines or the intestines of a small animal secure it in place --- if desired, allow the tree to grow around the inclusion for a couple of years, then use a sharp rock to saw off the branch at a suitable length.
I’m so glad to hear you say that, i was carrying it around while slogging through it and everyone else who saw exclaimed how good they’d heard it was. I do think the sequel is better, I can suspend my disbelief more and found parts of it honestly thrilling
Did your sense of taste change after your surgery? My sister is considering a similar procedure and is concerned that everything could start tasting like hot garbage.
The Nim compiler used ropes internally for years, until recently[0] because removing them reduced memory consumption and decreased compile times, so ymmv
This is a big tell that maybe we don't want to know exactly the type, but to have way to let the compiler/benchmarks to pick the best performing data structure for the task at hand, but I think that on most programming languages neither the language nor the tooling help you too much here.*
*Saying this mostly with the intent of being proved wrong ;) kxcd://386
yes, Nim has move semantics, but takes care of you more than c++ does.
for example, if you use an object that was previously moved, you dont get garbage, the compiler turns the first move into a copy (and tells you)
they should be able to. same physics applies, right? poles dont have to be as thick or as deep to resist the same torque, and if you could somehow make the pales curvy/corrugated, they could be thinner, too.
Wooden fences tend to be only a plank thick, so there's no savings like there are with brick walls where the savings come from getting to build a single layer thick.
75% of aluminium supply is from recycling aluminium products.
The economy sort of has a "working capital" quantum of aluminium which also grows steadily from aluminium mining.
Lots of metals have very different and complex supply structures and thus completely different $$$ / volume curves for their supply.
Understanding the $$$ / volume curve of commodities is not something that is commonly considered when people try and predict the future. Mining a billion tonnes of Aluminium from an asteroid for example and safely landing it on Earth can never be profitable because the $$$ / volume curve for Aluminium is $0.00 at billion tonne volume.
Engine blocks too. If you go to a scrap yard though you’ll be pretty amazed at all of the stuff they’ve got collected and sorted. Metal recycling (compared to, say, electronics recycling or plastic recycling) has a very clear economic model and financial incentives. If you’re demolishing a building or scrapping old machinery it will cost significantly less to recycle the metal (because you get paid decently by the pound) than to take it to a landfill (where you pay by the pound instead).
TIL! Aluminium is an extremely useful metal, but I would never have thought it would be used for jewelry - I mean, it's not enough for the metal to be expensive, it also has to look and feel desirable, which soft and dull Aluminium definitely doesn't. If you have ever held Aluminium cutlery in your hand, it just feels cheap compared to stainless steel (not to mention silver).
Today it isn't used for jewelry. 200 years ago it was - not so much to wear, but to show off that you were rich enough to afford it. Only royalty could afford things made out of aluminum.
I came here to share that the importance of using contemporaneous materials, if not methods, was highlighted for me when I worked on Bath cathedral and saw how the victorian 'improvements' of using iron rather than wood to fix the stonework caused much damage a century later; iron expands when it rusts and causes cracking.
Then I see linked in that article that Notre Dame was a very early example of using iron staples! I can only think that they were used away from water, unlike Bath, where the repairs were on the window fixings.
Not any kind of chemist, but I'm seeing molybdenum disulfide plus (metal) coated on alumina support used as a catalyst, as well as magnetic Al/Fe composite nanoparticles used for same. Usually the metal is something more punk rock, like platinum, cobalt, or ruthenium, but copper is an obvious choice on the poisonous/cheap axis
But a hammer! How do you make a hammer without a hammer?