Oojz Astronomers Find the Biggest Structure in the Milky Way Filament of Hydrogen 3,900 Light-Years Long
Two layers of a 2D-material are stacked, which influences the properties of the material. Credit
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: Erik Zumalt, Lukas Linhart2D materials have triggered a boom in materials research. Now it turns out that exciting effects occur when two such layered materials are stacked and slightly twisted.The discovery of the material graphene, which consists of only one layer of carbon atoms, was the starting signal for a global race: Today, so-called ldquo 2D materials rdquo are produced, made of different types of atoms. Atomically thin la
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yers often have very special material properties not found in conventional, thicker materials.Now another chapter is being added to this field of research: If two such 2D layers are stacked at the right angle, even more new possibilities arise. The way in which the atoms of the two
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layers interact creates intricate geometric patterns, and these patterns have a decisive impact on the material properties, as a research team from TU Wien and the University of Texa Oter HP to Announce Notebooks and Desktops at CES 2013
Some Good News, Heartbleed Bug Mostly FixedSucuri, an Internet security firm, has conducted a systematic scan of the top million website
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found that most of them are free of the Heartbleed vulnerability.If you ar
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e scratching your head, Heartbleed is a security vulnerability that was discovered earlier this month that allowed hackers to retrieve small nuggets of data from a web server's active memory using a security vulnerability in the OpenSSL security software. The data could potentially contain valuable information such as passwords, credit card information or even the server's own private security keys.According to Sucuri, the top 1000 websites are safe, thanks to patched servers and brand new security certificates and keys. The top 1000 websites include sites like Google, Facebook, YouTube, Pinterest, Wikipedia and more.Furthermore, out of the top 10,000 websites, only 53 were found to be still vulnerable. Unfortunately, Sucuri does not name which of the s