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Peanut Butter Diamonds, Air-Conditioned Shirts and On-Demand Amnesia

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Tiffany's? More like Jif-any's!: Researchers at Edinburgh University have created a way to make diamonds out of most carbon-based materials, including peanut butter. They create an oddly-named "stiletto heel effect" by squeezing material between the tips of two diamonds, creating pressure greater than at the center of the earth. Besides making diamonds out of sandwich dressings, the scientists also say they could turn oxygen into red crystals. Kind of makes me wish I had held out for more than a cupcake when trading away my peanut butter sandwiches in the lunch room.

Forgive and Forget: The next time you want to forget something, you won't need a bottle of tequila. Scientists at McGill University in Montreal and at Harvard have devised a method to erase or manipulate memories. By injecting a drug known to cause memory problems while a patient is recalling a specific memory, the scientists were able to disrupt the biochemical pathways that make the memory permanent. The scientists say it has already helped lessen the symptoms in victims of PTSD. As of yet, it doesn't appear to have been used Charlie Kaufman style, but there's still time.

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One Mammoth Discovery: In another case of life imitating awesome science-fiction movies, National Geographic reports that researchers are close to piecing together the genomes for extinct species like Neanderthals or mammoths. Once the genome is completed, many think that we could be close to reviving the ancient species. It's a matter of getting the DNA from these species, whether it's from fossils or frozen bodies. It makes me wonder if resurrected Neanderthals will be anything like those GEICO cavemen.
teeth.jpgBuilding a better mouth-trap: Dental materials can be hard to test, since long-term teeth models work quickly and hardly mimic the real human mouth. But researchers in England are working on a better dental robot. The device, known as Dento-Munch, can rotate on three axes, better showing the versatility of the mouth to test the effects on long-term wear on dental products. I'm sure its only a matter of time before Wrigley's gets their hands on it to develop a longer-lasting chewing gum.

Give 'em a Hand: More artificial body parts: A Japanese firm last week unveiled an artificial hand with a more sensitive touch. The prototype weighs only 14 ounces (about three ounces less than a human hand) and uses air pressure to control the movements of the fingers. The hand is so delicate that it can pick up a pen and a raw egg without breaking it, a big step up from the heavier models.

acshirt.jpgIt's like Sleeping on Air (Conditioning): In my dorm room, I had to struggle to coordinate three fans around the room to maximize the air cooling me while I slept. If only I had had Kuchofuku's new air conditioned bed. The bed uses two fans to circulate air under you while you sleep, creating an air conditioning system. As if that weren't enough, they're also selling a shirt that uses similar technology, so you can feel cool at the office. I'm sure its comfortable, but the giant fan on the side doesn't exactly scream high fashion.

Heard it through the Grapevine: We've all heard of the supposed "Mozart Effect," but who new it worked at vineyards? One researcher has applied that logic to plants, and found that classical music helps grapevines grow. The full results aren't in, but leaf area and growth were improved in plants exposed to music. The tests were all conducted in Tuscany on vines that produce Chianti, making this the swankiest research project I've ever heard of.

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science
Why a Howling Wind Sounds So Spooky, According to Science
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Halloween is swiftly approaching, meaning you'll likely soon hear creepy soundtracks—replete with screams, clanking chains, and howling winds—blaring from haunted houses and home displays. While the sound of human suffering is frightful for obvious reasons, what is it, exactly, about a brisk fall gust that sends shivers up our spines? In horror movie scenes and ghost stories, these spooky gales are always presented as blowing through dead trees. Do bare branches actually make the natural wailing noises louder, or is this detail added simply for atmospheric purposes?

As the SciShow's Hank Green explains in the video below, wind howls because it curves around obstacles like trees or buildings. When fast-moving air goes around, say, a tree, it splits up as it whips past, before coming back together on the other side. Due to factors such as natural randomness, air speed, and the tree's surface, one side's wind is going to be slightly stronger when the two currents rejoin, pushing the other side's gust out of the way. The two continue to interact back-and-forth in what could be likened to an invisible wrestling match, as high-pressure airwaves and whirlpools mix together and vibrate the air. If the wind is fast enough, this phenomenon will produce the eerie noise we've all come to recognize in horror films.

Leafy trees "will absorb some of the vibrations in the air and dull the sound, but without leaves—like if it's the middle of the winter or the entire forest is dead—the howling will travel a lot farther," Green explains. That's why a dead forest on a windy night sounds so much like the undead.

Learn more by watching SciShow's video below.

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Space
SpaceX's Landing Blooper Reel Shows That Even Rocket Scientists Make Mistakes
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SpaceX's Falcon 9 rocket launches.
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On March 30, 2017, SpaceX did something no space program had done before: They relaunched an orbital class rocket from Earth that had successfully achieved lift-off just a year earlier. It wasn't the first time Elon Musk's company broke new ground: In December 2015, it nailed the landing on a reusable rocket—the first time that had been done—and five months later landed a rocket on a droneship in the middle of the ocean, which was also unprecedented. These feats marked significant moments in the history of space travel, but they were just a few of the steps in the long, messy journey to achieve them. In SpaceX's new blooper reel, spotted by Ars Technica, you can see just some of the many failures the company has had along the way.

The video demonstrates that failure is an important part of the scientific process. Of course when the science you're working in deals with launching and landing rockets, failure can be a lot more dramatic than it is in a lab. SpaceX has filmed their rockets blowing up in the air, disintegrating in the ocean, and smashing against landing pads, often because of something small like a radar glitch or lack of propellant.

While explosions—or "rapid unscheduled disassemblies," as the video calls them—are never ideal, some are preferable to others. The Falcon 9 explosion that shook buildings for miles last year, for instance, ended up destroying the $200 million Facebook satellite onboard. But even costly hiccups such as that one are important to future successes. As Musk once said, "If things are not failing, you are not innovating enough."

You can watch the fiery compilation below.

[h/t Ars Technica]

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