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The invention of the 3D printer has been touted as the greatest breakthrough in mankind's never ending quest to one day never have to go to a store again. However, keeping one in your house can be about as safe as adopting a family of stray mambas.See, objects concocted in a 3D printer aren't smooth at all, and are in truth rife with microscopic nooks and crannies that are perfect for storing whatever manner of filth they come in contact with. Repeated physical contact with a 3D printed object (you know damn well where we're going with this) can result in a veritable potluck of bacteria and viruses, and their porousness makes them more difficult to clean thoroughly.To use an even more innocent example, say an unsuspecting "cool mom" used a 3D printer to make some cool looking forks and spoons for her kids. Unfortunately, scientists would warn that she'd better be extremely careful about it, unless she wants to spend the rest of the day explaining herself to Child Protective Services.iphone 6 replacement screen Making flatware that won't shred your mouth parts is technically possible, but you'd better pony up for some specialized material, unless you want to risk your children showing up at school looking like you've been putting powdered glass in their popsicles (while simultaneously poisoning them with toxic chemicals).iphone 6 replacement screen They found that when students were offered e books free of charge, a quarter of them opted to pay cash money for the paper versions instead.And to get a quarter when they sell them back at the end of the semester.It seems that students tend to skim over things and find it harder to keep track of important sections while studying digitally, while print books make the whole process of earmarking and mentally cataloging information more efficient. A good illustration of this came from one student's response to a survey question which asked what was the worst part about reading a physical book: "It takes me longer because I read more carefully."Finally, lest we think that today's college students are the last vanguards of paper books, whatever the hell we're calling today's children seem primed to carry the torch. In 2014, almost two thirds of all schoolchildren said that they'll "always want to read books in print, even though there are e books available". And that's up from 60 percent in 2012.Maybe we should start that magazine back up again.1. Automatic Faucets Are GrossIt's still up in the air as to whether technology will ever succeed in making public bathrooms less disgusting, since human biological functions are inherently chock full o' poo. But by eliminating the need to touch the same handles that Coughy McSalmonella did, automatic faucets were supposed to be inherently safer. And they are, unless you count all the cases of Legionnaires disease, an infection that causes a 'roided out form of pneumonia.It doesn't seem to make much in the way of immediate sense, but electronic faucets have been found to be teeming with infection in hospital environments, and some facilities have begun to put the old versions back in place in order to save lives. As Johns Hopkins infectious disease expert Dr. Lisa Maragakis put it, "Newer is not necessarily better when it comes to infection control in hospitals."Catheters being the lone exception to that rule.iphone 6 replacement screen So how is this possible, when we aren't even touching them? As it turns out, newer faucets have a "complicated series of valves" that are required for them to perform their magic, which also makes it very difficult to keep them clean. And because a janitor can't exactly flush the crap out of these faucets every time they're used, they become a breeding ground for all manner of transmittable filth. The moral of the story? Human innovation is basically a curse granted by an enchanted monkey's paw, and technology reached its zenith with the hoop and stick.

Last but certainly not least, merely having one of these printers in your house can give you the kind of symptoms that used to require decades of working maskless in an industrial plastics plant. See, the 3D printing process puts out plenty of toxic fumes when things heat up. An analysis revealed that it can fill the air with "ultra fine particles" that can cause a laundry list of ailments, such as "lung function changes, airway inflammation, enhanced allergic responses, altered heart rate and heart rate variability, accelerated atherosclerosis, and increased markers of brain inflammation," which you'll notice is about double the length of the warning label on a pack of Marlboros.2. College Students Freaking Hate E BooksGiven that you're reading this article on a screen instead of settling for the magazine that was left after all the copies of MAD were sold out, it's safe to say that digital words are the way of the future. Even academia has come around   there are probably more college students today who have never seen the inside of a real book than . wait, no. Can't be.Shockingly, it turns out that the people whom you might expect to fully embrace the new technology   college age millennials   prefer paper books. Heck, according to this survey, e books only account for a measly nine percent of textbooks bought on campus, while 87 percent were in old timey print.Some people have theorized that perhaps it's a money issue, but while textbooks are still a monumental scam, modern students reportedly "prefer print for both pleasure and learning," and it's baffling the shit out of the people in academia who study this sort of phenomena for a living. Another survey, this one administered by Hewlett Packard to students at San Jose State, came up with similar findings.