Tag Archives | Encryption
Gold Nanoparticles Confine Light On Nanoscale

Gold Nanoparticles Confine Light On Nanoscale

A multidisciplinary team at the Centre d’Elaboration de Matériaux et d’Etudes Structurales (CEMES, CNRS), working in collaboration with physicists in Singapore and chemists in Bristol (UK), have shown that crystalline gold nanoparticles aligned and then fused into long chains can be used to confine light energy down to the nanometer scale while allowing its long-range [...]

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Accuracy of Mobile Phone Population Mapping Demonstrated

Accuracy of Mobile Phone Population Mapping Demonstrated

A study by an international team, including the University of Southampton, has shown population maps based on anonymous mobile phone call record data can be as accurate as those based on censuses.   Their findings show maps made using mobile records are detailed, reliable and flexible enough to help inform infrastructure and emergency planners; particularly [...]

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Drones Help Show How Environmental Changes Affect the Spread of Infectious Diseases

Drones Help Show How Environmental Changes Affect the Spread of Infectious Diseases

Unmanned aerial vehicles, or drones, can collect detailed information in real time at relatively low cost for ecological research. In a new Opinion piece published in the Cell Press journal Trends in Parasitology, experts demonstrate that drones can be used to understand how environmental factors influence the spread of infectious diseases.   “Drones can provide [...]

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Future Computers Built from Magnetic ‘Tornadoes’

Magnetic materials form the basis of most hard disc drives as they are able to store data. A team from the University of Sheffield’s Faculty of Engineering have been investigating whether they could also be used to perform calculations, and so take on the role of a computer’s central processing unit (CPU). Lead researcher, Dr [...]

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Quantum Info Transmitted Through Atmosphere

Quantum Info Transmitted Through Atmosphere

It could be difficult for the NSA to hack encrypted messages in the future — at least if a technology being investigated by scientists at the Max Planck Institute for the Science of Light in Erlangen and the University Erlangen-Nürnberg is successful: quantum cryptography. The physicists are now laying the foundation to make this technique, [...]

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Most Complete Antarctic Map for Climate Research Made Public

Most Complete Antarctic Map for Climate Research Made Public

The University of Waterloo has unveiled a new satellite image of Antarctica, and the imagery will help scientists all over the world gain new insight into the effects of climate change.   Thanks to a partnership between the Canadian Space Agency (CSA), MacDonald, Dettwiler and Associates Ltd. (MDA), the prime contractor for the RADARSAT-2 program, [...]

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Laser Makes Microscopes Far More Sensitive

Laser Makes Microscopes Far More Sensitive

Laser physicists have found a way to make atomic-force microscope probes 20 times more sensitive and capable of detecting forces as small as the weight of an individual virus.   The technique, developed by researchers at The Australian National University (ANU), hinges on using laser beams to cool a nanowire probe to minus 265 degrees [...]

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New Characteristics of Complex Oxide Surfaces

New Characteristics of Complex Oxide Surfaces

A novel combination of microscopy and data processing has given researchers at the Department of Energy’s Oak Ridge National Laboratory an unprecedented look at the surface of a material known for its unusual physical and electrochemical properties.   The research team led by ORNL’s Zheng Gai examined how oxygen affects the surface of a perovskite [...]

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Is Your Data Safe? Why You Should Care More About Spam

The Center for Research on Electronic Commerce (CREC) at The University of Texas at Austin is working to protect consumer data by using a company’s spam volume to evaluate its security vulnerability through the SpamRankings.net project. “The goal is to alert companies that they are spamming [and] hold them accountable to stop spamming, thus enhancing [...]

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Computer Security: ‘Melbourne Shuffle’ Secures Data in the Cloud

Computer Security: ‘Melbourne Shuffle’ Secures Data in the Cloud

  To keep data safe in the cloud, a group of computer scientists suggests doing the Melbourne Shuffle. That may sound like a dance move (and it is), but it’s also a computer algorithm developed by researchers at Brown University. The computing version of the Melbourne Shuffle aims to hide patterns that may emerge as [...]

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