Graphene: Miracle Substance that is the Strongest, Lightest and Best Electrical Conductor Ever Known

first_imgGraphene has the potential to become a super material.  While it  doesn’t occur naturally, it has some interesting properties.  It is only a one-atom thick lattice of carbon, but it has incredible strength and electrical conductivity properties.    In fact, it is 200 times stronger than steel.  It is unsurpassed in thermal conductivity and elasticity.  It is also the lightest material ever measured.  While it is impenetrable, it is very pliable and transparent.Despite the unique set of properties, scientists have known about graphene for more than a decade but have had time trying to practically use it.  But that’s beginning to change.Scientists have found that graphene can be mixed to make a composite that when used as a photodetector can convert infrared light into electrical signals.  Graphene photodetectors have the potential to speed up computers and help reduce computer power consumption.  The material has the potential to convert light into electricity tens or hundreds of times faster than other known materials.  The material will allow faster transmission of data than fiber optic.Recent work at Columbia University and in South Korea discovered that graphene could be used to create one-atom big light bulbs.  James Hone, researcher at Columbia University, said that “the reason both [graphene and tungsten] are used is because they survive very, very high temperatures.  There are only a few metals that survive up to such high temperatures, and tungsten was one of them. However, carbon is another. Carbon was actually used in Edison’s first lightbulbs. And graphene is just a very pure crystalline form of carbon.”Researchers are investigating how graphene can be combined with fiber to create smart textiles.  Helena Alves, graphene researcher at the University of Aveiro, said that “the concept of wearable technology is emerging, but so far having fully textile-embedded transparent and flexible technology is currently non-existing. Therefore, the development of processes and engineering for the integration of graphene in textiles would give rise to a new universe of commercial applications. ”last_img read more

Cartoon: A Thicker Skin

first_imgrob cottingham 4 Keys to a Kid-Safe App 5 Outdoor Activities for Beating Office Burnout Related Posts So it’s happened again: a company comes under fire for some misdeed — perceived or actual — and gets a few critical comments on their Facebook Page. And their crisis communications strategy is to pour gasoline on that little flame by deleting those comments.The latest folks to do this are the people at ChapStick, who ran a print ad that offended a few folks. Those critics posted their complaints on ChapStick’s Facebook page (most of them quite civil). ChapStick’s page administrators then deleted the comments; this case adds an ironic new wrinkle because of the ad copy pointing people to their Facebook presence, which reads “Be heard.”After enduring a torrent of criticism for deleting the criticism, ChapStick posted an apology for the ad and a sort-of explanation for deleting the comments, saying they follow Facebook guidelines and “remove posts that use foul language, have repetitive messaging, those that are considered spam-like (multiple posts from a person within a short period of time) and are menacing to fans and employees.” Which, with most of the comments, wasn’t the case.It seems to bear repeating: brands, learn to take some criticism on your social web presences. Why? Because…Accusations of suppressing those comments are often more damaging than the original criticisms themselves.The presence of critical comments gives the conversation happening on your Facebook Page, blog or other presence a sense of authenticity. That means the positive user comments carry more weight than they would if your site had nothing but obsequious flattery.A critical comment can be an opportunity for engagement on your part. It’s your chance to answer a criticism, resolve a complaint, correct some misinformation. And you may be catching a little issue before it becomes a much bigger one.A critical comment can be an spur to participation and conversation by your community. Let’s face it; for most brands and organizations, excess participation usually isn’t the problem with their Facebook pages.So maybe it’s time to learn to love the negative. A thicker skin not only saves you from the sting of a little criticism; it can let you realize from genuine benefit… and keep you from becoming the latest high-profile case study in why comment deletion can backfire.See more of Rob’s Noise to Signal cartoons herecenter_img Tags:#Cartoons#web 9 Books That Make Perfect Gifts for Industry Ex… 12 Unique Gifts for the Hard-to-Shop-for People…last_img read more