fun fact! mirrors reflect each color equally, except for green. if you have ever seen a mirror perfectly aligned in front of another mirror, a.k.a. an infinite mirror, you can look through it and see that it becomes greener and greener. therefore, mirrors are technically green!
holy shit
The glass is greener over here. Not a typo.
If you look edgewise through a sheet of glass you see that it’s green because of iron impurities (Google for it). Reducing the iron reduces the green.
Perfectly aligning mirrors to multiply reflections also multiplies the apparent thickness of the glass, and the green tint becomes more apparent the “deeper” each reflection seems to be.
Science is like history: it was never this interesting at school. 🙂
Yep! And this is because – I’m sorry to say – mirrors are not a unique or separate substance with magical properties. Mirrors are silvered glass. They have two colors: the color of the silver, and the color of the glass. The “silver” doesn’t have to be silver, though it usually is because mirrors are traditionally made with silver nitrate, because it’s a whitish metal. You can have mirrors silvered in gold or black or red. You take literally any piece of glass, pour a coating of silver on it, seal it, and call it a mirror.
You have to seal it because otherwise it tarnishes and spots. Even though the glass protects it from air, the silver oxidizes just like any other silver, which is why antique mirrors have that funky age-spotted look.
Mirrors used in science are usually pure clear glass with no impurities (so the glass has no color) and are silvered in gold or aluminum, so they are white or gold. A warm-toned mirror would have a pink glass and would make things have a rose-gold look. Phryne Fisher, in the books, has a mirror with pink glass.
(Mirrors silvered in silver – that is, most mirrors you’ve seen – are probably faintly grey from the silver and faintly green from the cheap glass, but it doesn’t need to concern you at all – even if you noticed a strong color, you’re often so used to looking in them that your brain edits out any discrepancy – like how your nose doesn’t get in the way of your vision even though it’s right in front of your eyes all of the time.)
My grandmother had a mirror that was silvered in gold. It was a little disconcerting. The silver in mirrors is why vampires don’t have reflections. (And why the cutlery at Castle Dracula was made of gold.)
IS THAT TRUE ABOUT THE REFLECTIONS BECAUSE IF SO THAT CHANGES ABSOLUTELY EVERYTHING???
It’s true! (Source is The Journal Of I Read It Somewhere One Time, so take it with a truckload of salt, but I’m pretty sure it was a published book and not the internet, so like, only a pickup truck, not a dump truck.)
Watsonian explanation: Silver as an entity and/or concept was upset about being used to pay Judas, so as some kind of compensation God gave it evil-fighting powers, and this is why vampires don’t have reflections in silvered mirrors as well as why werewolves are killed by silver bullets. (Also works for vampires not showing up on film, because silver nitrate, although obviously that isn’t part of the ~*~original folklore~*~ and also doesn’t explain digital cameras.)
Doylist explanation: A lot of things that are traditionally anti-vampire turn out to have antibacterial properties- the only ones I remember are garlic and silver, but I think there were others- so supposedly when anti-vampire treatments helped somebody out of a decline or whatever they were actually helping fight off an infection.
Does that mean that a vampire would see themselves in a gold mirror but not a silver one?
What about a gold mirror with antibacterial soap or something sprayed on it?
And if it’s the silver in the cameras that made them not show up on film, that means that digital is entirely different (unless they use silver in the manufacturing – which i’m pretty sure they don’t – or if some rich person has a silver encased camera – but that still probably wouldn’t work because the lense couldn’t be encased in silver otherwise it wouldn’t work) so basically we need a modern story where the Vampires are having to come up with clever things to stay out of photos where possible because DIGITAL, but there’s that one vampire who photobombs everything and is famous on the internet for it because he’s literally everywhere.
malachite is a poisonous mineral. please do not fuck the malachite stalactite
@lizaleigh do you know any rock people that can confirm/deny because I am very curious and really don’t feel like getting into a conversation with my geophysicist brother that MAY somehow get back to the fact I saw a malachite that looked like a weird dildo.
…sadly, I am not on good enough terms with any of our partner geologists to just attach this to an email with the subject line: “EXPLAIN.”
Although I think @mollisaurus is a mineral person. Thoughts?
oh geeze, i’m kinda rusty on minerals but malachite is just copper carbonate and is really common in both antique and modern jewelry so i think like if you were really gun-ho about it you could go ahead and put it wherever you want?
It’s really only a problem if you’re polishing or cutting it. The particles would be bad to breathe. It’s rather porous too, so I would worry about bacteria growing. Well, being literal anyway… Better to leave the poor thing alone. ._.
I mean it kinda depends on where you stick it because malachite does not like acidic environments very much and the malachite will degrade and also might dye your bits blue-green as the copper dissolves out.
So use a condom when fucking rocks is the takeaway here.
Oh my god guys it’s poisonous
It is super poisonous
There is a reason we do not use it in make up any more
Not even with a condom, do not fuck the rock
Try this one instead.
malachite literally explodes in water does it not?
I… no… I think you’re thinking of pure sodium?
Malachite is however water soluble, which really just means it will poison you quicker
This is both hilarious and cool as fuck because you’re getting all this information on minerals and rocks. You’re also watching people argue over wether or not you can fuck this rock
I go on hiatus for a week and come back to find tumblr molesting my post, but hey, at least we all learned something so yay tumblr, you just keep on being you.
I’m still not sure if I can fuck this rock.
I’m looking into it.
UPDATE:
Today in “I’m so sorry, coworkers, it’s for Tumblr,” I brought this post to the attention the science reporters at BuzzFeed. Dan Vergano did a some research and weighed in on the question “Can you use malachite as a dildo or is it toxic?”
The answer is “It’s probably fine, just wash it first and maybe use a bunch of lube.”
Oh man this got so much better than the last time I saw this post
This is my favourite. Science side of tumblr: asking the REAL questions
*biologist crashes through the underbrush*
Ok so here’s the thing though
Malachite is not poisonous to YOU. BUT fucking this stalactite will probably wreck your vaginal flora and leave you with a gruesome infection within a couple days.
Want details? SO GLAD YOU ASKED, ‘CAUSE HERE THEY ARE.
• Malachite is not copper oxide. It’s Cu2CO3(OH)2. Like most carbonates it’s water soluble– that’s how it became a stalactite in the first place! And technically any given chunk of “malachite” isn’t just malachite– it’s a mix of various copper carbonates & oxides. This will become important later.
• When malachite dissolves it makes a bunch of copper (Cu++) ions. Cu++ is GREAT at killing bacteria and fungi– so good at it that sprays with Cu++ get used a lot as a spray in agriculture to stop plant disease. It takes such a large dose to harm larger organisms that copper sprays are used a lot in organic agriculture (like Bordeaux mixture).
So bottom line, yes malachite is technically nontoxic to humans. But it kills bacteria when it dissolves and releases Cu++.
• Malachite dissolves somewhat slowly in water– but vaginal secretions aren’t just any water. A healthy human vagina has a pH of 3.8-4.5 and a salinity of about 0.9%. It’s also warmer than your average underground cave at 37°C (or 98.5°F in American meat units). As luck would have it, acidity, salinity, and warmth all make malachite dissolve faster.
• In other words, the human vagina dissolves malachite.
• I have no deeper explanation for why human females can dissolve rocks with our genitals. It simply is.
• Gonna to take a quick moment to point out that sex toys that dissolve when you use them are maybe not the best investment.
• Anyway the key question now is “how fast does the human vagina dissolve malachite?” Are we talking geological timescale, a Nazis-in-Indiana-Jones situation, or something in between? If the reaction kinetics of dissolution are very slow, then there’s nothing to worry about. An encounter with a stalactite would have to last years for enough Cu++ to leach out to cause problems. If it’s quick then we’re in trouble.
• Unfortunately it looks like nobody really knows. One of the best sources on how malachite dissolves & precipitates in water– an EPA document on how to avoid too much Cu++ in municipal drinking water systems– helpfully says “The kinetic constraints on the formation of these solids in water systems are largely unexplored” (p. 42) because end equilibrium points is all you need to run a city water system safely. In other words, the experiments that would tell us how fast malachite dissolves in various types of water just don’t exist because nobody’s ever needed to know before. So we’d better assume it’s going to happen reasonably quickly, #for safety.
• So in best scientific fashion, we’re just going to bullshit our way ahead using what facts we DO have on hand: endpoint equlibria.
That orange box is how many moles of dissolved Cu++ Scaife got from sticking malachite in some water that had 0.171 moles NaCl/L (body salinity is about 0.154 moles NaCl/L so this is slightly less salty than people) at 30°C. He’s got no acidity in there, and again the salinity and temperature are slightly lower than people. But this is probably the closest we’re going to get to data on how malachite behaves in vaginas anytime soon, folks. From this we can take away that if you leave malachite alone in a vagina you’ll get AT LEAST 9.12 x 10^-4 moles/L, or 5.8 ppm, of Cu++ at equilibrium.
• Recall from above that most “malachite” isn’t actually pure malachite, it’s a mix of various copper carbonates & oxides. The EPA document elaborates: “[T]raditional ‘eyeball’ identification of malachite by its blue-green color is extremely
unreliable, because almost all cupric hydroxysulfates, hydroxycarbonates, hydroxychlorides,
and even fresh cupric hydroxide can be some shade of blue-green. … Thus, the uncertainty in the computed copper
concentration in equilibrium with malachite is at least about a factor of 2 … until further experimental data focusing on this problem is generated.”
In other words, “do your math and then double how much Cu++ you think is going to be in the water, just in case.” So that gives us 11.6ppm Cu++, at equilibrium, with malachite in a (til now!) healthy vagina.
• Next step: do we have any idea what happens to bacteria in acid conditions with copper? OH MY GOD WE TOTALLY DO. Gyawali et al 2011 checked this out in the context of “so what if we rinsed tomatoes with a solution of lactic acid and copper, because that would be a safe & organic way to get rid of E. coli?” So now this post has officially ruined stalactites, vaginas, and tomatoes.
^This would happen. These are the counts of 4 E. coli strains exposed to various levels of lactic acid & Cu++ for 8 hours. This table only shows the end counts but it represents the death of 99.7% of bacteria*.
• Losing 99.7% of your vaginal flora is seriously bad news. You’re looking at really good odds of a yeast infection, bacterial vaginosis, and/or other infection issues. And that’s if you’re lucky enough to not be in the 4% of the population or so that’s sensitive to skin contact with copper.
• The good news? Biochemically speaking, you’re probably ok to put it in your butt. It’s not as acidic or salty in there, plus there’s a huuuuuge stockpile of gut microbes right upstream that can quickly repopulate the colon after spelunking is complete. However this stalactite is not flared at the base so it is the wrong shape for putting in your butt. Do not put this stalactite in your butt.
• This all looks like fun and games, but I think it’s really interesting that the internet’s mistake in concluding that this stalactite is fuckable is very similar to the mistake made by the Flint water management system. Hear me out.
• Central to the Flint lead poisoning crisis is that authorities only looked at & tested Flint’s water in its central treatment plant before it went out through the pipes. Not after it went through the pipes. They did not consider what would happen biochemically as it went through the pipes and metals started dissolving.
• Similarly, in concluding that the stalactite is fuckable, the internet only considered the stalactite itself. Not the biochemical processes that would happen to it as it, welp, went through the pipes.
• Media frequently reports that the Flint River’s water is “corrosive,” leading many to believe the river is full of industrial waste. This ain’t the case. You’d need industry to fill a river with industrial waste, and industry left decades ago. That’s why Flint’s so poor. So what IS in the water? Road salt. Plain old stupid road salt. The old Detroit-based source didn’t have salt because it came from Lake Huron which has a large, mostly rural watershed. Meanwhile the Flint River runs through a lot of towns, making it slightly salty as everything melts down in spring. And as we recall from the stalactite experience, a little salt is all it takes to get metals to dissolve.
• Information on this engineering problem was not coming through clearly from the engineering or chemistry sides. It took a biologist, pediatrician Mona Hanna-Attisha, to document the real-time results and provide the data to kick-start a high-level investigation.
• Morals of the story: when dealing with a biological system pls consider asking a biologist, your vagina and/or city could depend on this
• Pls use a condom when fucking any water-soluble material
• Still don’t put the stalactite in your butt -3/10 do not recommend
OK, I haven’t reblogged this before now but the final post takes it to a whole new level and I can no longer resist.
fuck I love the internet
Oh my God you guys, the malachite dildo thing is still being debated. I love Tumblr.
humans are so cute, when we say goodbye we put our arms around each other and to show we love someone we bring them flowers. we say hello by holding each other’s hand, and sometimes tiny little dewdrops form in our eyes. for pleasure we listen to arrangements of sounds, press our lips together, smoke dried leaves, get drunk off of old fruit. we’re all just little animals, falling in love and having breakfast beneath billions of stars
i hate math tests because all throughout the chapter it’s like really easy shit and then you think you’ve got it and then the test is like
if i throw a triangle out of a car and the car is going 20 mph and wind resistance is a thing that exists, how many cupcakes can pedro buy with one human soul
A Human soul is worth $660,326.82 according to “The devil went down to Georgia” where the Devil offers a fiddle of gold as an equal bet against a soul.
assuming a fiddle weighs about 450 grams and is primarily made out of spruce and maple. The density of spruce is 0.43 g/cm3, and the density of maple is 0.6 g/cm3. As an estimation, we’ll just average these and suppose that the average density of the material of a violin is 0.515g/cm3. so If the Fiddle weighs 450 g and has a density of 0.515 g/cm3, that means that the volume of the wood of the Fiddle is 873.8 cm3. Our hypothetical golden prize had gold in lieu of wood. So 873.8 cm3 of gold weighs 16.9 kg — almost forty pounds! — or 543.3 troy ounces.
Since the selling price of gold today is $1215.40 per ounce that gives us our value, but as for cupcakes it’s a little harder, most cupcakes sell for $2.50 to $4.00 at a bake shop, so let’s average that to $3.25, some simple division and we get our answer
Pedro can buy 203,177 cupcakes and have $1.56 left over.
when the fuck did i do this? i have no memory of this
having a flesh vessel is so annoying?????? like they have to be constantly watered, they have to be in specific temperature range to be comfortable, i’ve had a headache for like seven hours and nothing i do will get rid of it,
physical forms are so inconvenient??????????????
I knocked mine over yesterday and scraped off some of the outer barrier and it keeps sending me really annoying warning messages about it
blood.dll has caused an access violation exception
I still can’t figure off how to turn off the monthly compile time. It goes for like 7 days wrecks all the system and takes so much CPU time.
I got the wrong model, too, and there’s no returns or exchange policy. I’m trying to make do as best I can with aftermarket modifications, but even that’s a real bind. And then I have to deal with all the purists who try to tell me I should be happy with the model I was given.
Mine has a short in the warning and alert sensors, and keeps tripping the alarm system for absolutely no reason. It’s been taken to the mechanic many times, but the best they can do is recommend daily chemical baths for the wiring to keep it from arc-faulting constantly.
My uterus keeps trying to install this shitty bloatware that comes with certain dll processes and I keep refusing the update, then it goes through the whole defrag process deleting all those files.
My histamine system is faulty and triggers for no reason. I keep turning it down but I have to keep reapplying the patches daily.
On the plus side some of the case mods you can do are sick as hell.
My optical system’s permanently stuck on a really close focus setting, so I had to have extra camera lenses custom-made to sit in front of the vision chamber before it’ll notice anything more than 50cm away.
My optical system won’t quite come into focus. I got the extra lenses to correct it, but it’s not a huge difference so I do without until the system causes headaches from the strain. Also, the migraines that come with the monthly fail of the create!child program suck. DoubleSuck for the migraines that happen if I have not given the vessel caffeine for too long, and triple for the ones that happen for no reason
Steel Phoenix Studios 