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only purestrain gold is worthy of being called gold and say what you will about iron, it'll have the last laugh in the very end
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Jun 12, 2023 22:21
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an entire page and nobody badmouthed radium yet!
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Jun 12, 2023 22:31
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Deep Dish Fuckfest posted:only purestrain gold is worthy of being called gold my nugget is 24 karat. i assum e that's purestrain
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Jun 12, 2023 22:33
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only if it's been pure solid gold since the very beginning of the universe
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Jun 12, 2023 22:38
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didn’t gargamel try to make gold from lead tbh dense metals are the mf poo poo. they are metals worthy of a derision exemption if I was many millionaire i’d commission a set of weights for strength training out of osmium or osmium alloy or whatever was needed for stability it would be loving dope to have just a lil bar and rjay was like 20kg osmium density 22.5g/cc and gold is 19.3 so pure gold weights would also be bad asss lead is only 11 which is cool because lead and gold are best friends and iron is 7.9 or so so gold is 2.4x as dense as boring iron and this makes me lose respect for iron
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Jun 12, 2023 22:49
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sagey you prolly know this but what’s the general idea behind the bronze age coming before the iron age and also aluminium is mega common in the crusty part of the earth but it took a lifetime to work out how to get it is it all a thing like , maybe copper and zinc were found as lil chunks but iron and alumininium are often maybe always in ore and they have to use magical processes to release them
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Jun 12, 2023 22:51
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aluminum is a bitch rear end metal that can only be talked out of its rocks by the application of high heat common enough to be the girl next door but thinks too highly of itself to let itself get worked also doesnt handle stress very well
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Jun 12, 2023 22:58
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aluminum's a dick that reacts with anything so even if there's a shitload on earth it's all aluminum oxide which is basically trash rock only way to get it back into metal efficiently is to run some electricity through molten stuff so the aluminum separates from the rest of the garbage
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Jun 12, 2023 22:59
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echinopsis posted:didn’t gargamel try to make gold from lead pretty sure he also tried to make gold out of powdered smurfs
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Jun 12, 2023 23:26
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the smurfs were a catalyst for the lead -> gold transmutation i think
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Jun 12, 2023 23:31
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at least he had his priorities right
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Jun 12, 2023 23:32
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gargamel had a cat which i'm pretty sure means he couldn't have been that bad of a guy
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Jun 12, 2023 23:36
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echinopsis posted:sagey you prolly know this but what’s the general idea behind the bronze age coming before the iron age and also aluminium is mega common in the crusty part of the earth but it took a lifetime to work out how to get it yeah pretty much copper is (or was) easy to find at the earth's surface in elemental form, in nuggets and nodules. it was the first metal that people discovered and it can be smelted at low temperatures in a wood fire. the elements that improve its properties (arsenic or tin to make bronze; zinc to make brass) are also relatively easy to extract and are usually found in nearby deposits. gold and silver were also known to the ancients because they also can be found at the surface and melt at low temperatures. but obviously they are too soft and rare for tools, so we call it the chalcolithic age instead of the aurolithic or whatever. iron is almost never found in elemental form -- the only ancient source of elemental iron was meteorites. this prevented people from discovering its abundance for thousands of years. iron ore, while common, needs higher temperatures to be smelted, and you have to do special things to purify it and keep it from oxidizing when it's liquid. so the technology just had to catch up. nobody knows exactly who discovered iron smelting first, but it was probably a result of someone experimenting with the known technique of "put different weird rocks in a very hot fire and sometimes neat new stuff comes out." aluminum is the same idea but moreso. pure aluminum is highly reactive with oxygen, and aluminum oxide has an extremely high melting point. it's not possible, to my knowledge, to extract the metal from the ore purely with heat in an oxygen containing atmosphere; you need chemical processes as well. so the metal wasn't isolated until the 1850s, when electrochemistry had advanced enough to do so.
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Jun 12, 2023 23:45
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isn't iron actually inferior to bronze in a lot of tool applications? with the dominance of bronze smelting coming to an end because trade routes and the supply tin collapsed, and iron only replaced it out of necessity? for aluminum i don't think you strictly need electrochemistry to extract it, but the process is hilariously difficult, still requires good knowledge of chemistry, and produces only small quantities. which is why in the period between when it was isolated and when it was produced industrially it was a fairly expensive metal iirc, and something of a status symbol. so you had stuff like napoleon III having gold cutlery for most guests and reserving the aluminum stuff for special ones. or the washington monument being capped with an aluminum pyramid instead of gold or platinum or something like that
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Jun 13, 2023 00:14
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Sagebrush posted:yeah pretty much thankyou master for giving me the chance to learn you should be a youtube channel
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Jun 13, 2023 01:02
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metallic hydrogen
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Jun 13, 2023 01:34
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ruining glass with metal : pyrex? more like poorex
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Jun 13, 2023 02:27
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but I jest interfering with glass by adding metal is actually capital B Badass add lead into glass and give it a dozen indexes of refraction add some uranium and it goes green and fluoresces under a black light. I have some and it owns add some gold and the glass goes a rose tint what other amazing glass antics do you know of
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Jun 13, 2023 02:30
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echinopsis posted:but I jest there's the whole thing with fiber-optic cable powering the entire modern communications backbone
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Jun 13, 2023 02:35
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you had me at bone
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Jun 13, 2023 02:36
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echinopsis posted:but I jest guess what they add to it thats right capital B Boron
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Jun 13, 2023 02:36
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aluminum sucks because all you gotta do is put a drop of gallium on it and it does this weak rear end garbage metal
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Jun 13, 2023 02:43
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Deep Dish Fuckfest posted:isn't iron actually inferior to bronze in a lot of tool applications? with the dominance of bronze smelting coming to an end because trade routes and the supply tin collapsed, and iron only replaced it out of necessity? much bigger question than simply yes/no. what do you want out of the metal? hardness, toughness, springiness, weight, resonance? corrosion resistance? to what chemicals? what kind of iron? elemental iron, pig iron, cast iron, wrought iron, white iron, steel? low-carbon steel, high-carbon steel, tool steel? what kind of bronze? tin bronze, arsenic bronze, phosphor bronze, silicon bronze, aluminum bronze? what kind of post-processing treatments are being applied? hardening, annealing, tempering, case-hardening, work-hardening? what manufacturing method do you want to use? casting, forging, welding, machining? any special requirements? cleaning, polishing, electrical or magnetic properties, sparking, toxicity? how much money do you have to spend?
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Jun 13, 2023 02:46
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the properties and types that were important to people making the transition from bronze to iron due to the collapse of trade routes of course. they probably didn't care much about electrical properties, but i wouldn't bet my life on it
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Jun 13, 2023 02:58
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each one of those points is its own separate post. so i will summarize by saying yes, around the transitional period between the bronze and iron ages, the relatively well developed copper alloys would have been generally better than the brand new and not well understood iron-carbon system. mostly in terms of ease of working and the ability to get reliable and predictable material properties. iron properties are very sensitive to carbon content -- a few percent making the difference between soft and bend and hard and fragile -- and this carbon content is hard to control since it's in the air and it also comes from the fire you're using to melt the metal. the main advantage of early wrought and cast iron over bronze is that it was more abundant and (eventually) cheaper. bronze still had great mechanical properties. but once people figured out how to make steel, there was no looking back. there's nothing like tool steel in the copper alloy system.
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Jun 13, 2023 02:59
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what about the vibe
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Jun 13, 2023 03:18
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bronze has better vibrational qualities, which is why they use it for bells and cymbals.
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Jun 13, 2023 03:20
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they should make lead cymbals
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Jun 13, 2023 04:15
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you’re a lead cymbal
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Jun 13, 2023 04:16
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its me
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Jun 13, 2023 04:20
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iron ore more like iron bore iron boron
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Jun 13, 2023 04:24
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remember when bruce willis used a metal splinter to pick the lock on a pair of handcuffs? that metal splinter was a real double edged sword.
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Jun 13, 2023 06:46
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bronze is also much easier to cast because it can be done at normal temperatures. cast iron only came about later when people could make much hotter furnaces and casting is way easier than forging or w/e
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Jun 13, 2023 08:02
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you ever seen old bronze swords in museums? they’re tiny, they look like little baby swords because they aren’t hard enough to survive being long and girthy
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Jun 13, 2023 08:05
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"lead" more like leads you to the grave amirite
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Jun 13, 2023 09:17
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Jun 13, 2023 09:23
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echinopsis posted:post the stupidest metals itt cerium no doubt. worthless garbage
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Jun 13, 2023 10:39
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Sagebrush posted:much bigger question than simply yes/no. fuckin smartass egghead. i obviously meant for bronze age tool stuff like implements for stabbing people and knives and poo poo Sagebrush posted:each one of those points is its own separate post. so i will summarize by saying yes, around the transitional period between the bronze and iron ages, the relatively well developed copper alloys would have been generally better than the brand new and not well understood iron-carbon system. mostly in terms of ease of working and the ability to get reliable and predictable material properties. iron properties are very sensitive to carbon content -- a few percent making the difference between soft and bend and hard and fragile -- and this carbon content is hard to control since it's in the air and it also comes from the fire you're using to melt the metal. much better also the best bronze is beryllium bronze
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Jun 13, 2023 13:20
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silicon bronze for those antiquity computers
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Jun 13, 2023 14:53
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echinopsis posted:too late … lol
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Sep 14, 2023 20:12
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