How An Electronic Cigarette Works


“Last year, a study from an international group of scientists showed that the toxins in e-cigarette vapor are 9 to 450 times lower than in tobacco smoke. The Food and Drug Administration is still determining its regulatory stance. It’s sponsoring more research while sorting out its position… Here’s how they work…” w/ photos

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Is Salt Really That Bad For You?

“We’ve been told that our salt intake is dangerously high, especially here in America. While respectable organizations, like the Center for Disease Control, back this statement, is there any truth to it? Tara Long joins DNews to look at an interesting new study saying that Americans are actually eating a healthy amount of salt!” — DNews

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Holy Grail Of Commercial Graphene Production?


“Basically, they start with a normal silicon wafer. They coat the wafer in a layer of germanium (Ge), and then dip the wafer in dilute hydrofluoric (HF) acid, which strips off the native (naturally forming) germanium oxide groups, leaving a ‘sea’ of hydrogen atoms that are bonded to the germanium underneath (H-terminated germanium, in chemistry speak). The wafer is then placed into furnace, where fairly normal chemical vapour deposition (CVD) is used to deposit a layer of graphene on top of the H-terminated Ge. Finally, after a bit more baking, and cooling under vacuum, the graphene is ready to be peeled off and used in the fabrication of graphene transistors and other such devices.” w/ photos

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Anti-Aliasing Explained In 60 Seconds

“I originally started this video as a class project, but it turned into an excuse to teach myself After Effects, which was used to make the entirety of this video. There are many problems with this video, but for a first attempt I guess I can’t expect much.” — Lange

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Can We Genetically Engineer Humans For Space?

“Traveling far distances in space is difficult, but advances in jet propulsion and genetics are making it possible. Trace is joined by Dr. Kiki Sanford to discuss how by altering the genes in our own bodies, we can make ourselves more fit to survive on other planets!” — DNews

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Are Vegetarians Better For The Environment?

“There are many reasons to become a vegan or a vegetarian. One of the popular reasons is because it’s better for the environment… but is it really? Our resident vegetarian Anthony Carboni did some digging to find the answer.” — DNews

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Are Left-Handers Quicker Thinkers Than Righties?


All those parents in the ’70s and ’80s who made their left-handed children struggle to use their right hands may be kicking themselves right about now. As it turns out, left-handers might have the advantage in certain areas like, say, piloting a jet fighter or talking and driving at the same time. A study published in the journal Neuropsychology in late 2006 suggests that left-handed people are faster at processing multiple stimuli than righties. The research conducted at the Australian National University (ANU) seems to back up earlier studies showing that left- or right-handedness is determined in the womb and that many lefties process language using both hemispheres of the brain, as opposed to righties, who seem to use primarily the left hemisphere for this purpose.” w/ photos

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The Other Golden Rule

“Did you know that most mammals, from a house cat to an elephant, take roughly the same amount of time to urinate? Researchers at Georgia Tech collected data, streamed via online video and in real life, and discovered that a combination of physiology and gravity enable this feat of fluid dynamics.” — SciFri

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How A Robot Captures Human Faces


“These are not your usual Hollywood closeups. Swiss photographer Daniel Boschung created the series Face Cartography by using a robot to take high-megapixel pictures of peoples’ faces, blowing up their features to striking detail. While macro photography like this isn’t new, Boschung is slightly more removed from the process because he uses an ABB industrial robot with an attached Canon EOS Mark ll camera and a 180mm macro lens to capture hundreds of single shots of each subject. The final images are composites of those single shots, creating stunning photos with 900 million pixels.” w/ photos

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