New Scientist TV: Invisible Wi-Fi signals caught on camera
Sandrine Ceurstemont, video producer Computer icons can give you an idea of your Wi-Fi signal strength. But now Timo Arnall and a team of designers from the Oslo School of Architecture & Design have created a device that can produce a large scale visualisation of the fluctuating Wi-Fi signals around a city (see video above). Their latest prototype is a four-metre-tall rod, lined with LEDs, that in
Cassette tapes are the future of big data storage
Like a mixtape, only bigger (Image: Saturno Dona/ Alamy) THE cassette tape is about to make a comeback, in a big way. From the updates posted by Facebook’s 1 billion users to the medical images shared by healthcare organisations worldwide and the rise of high-definition video streaming, the need for something to store huge tranches of data is greater than ever. And while hard drives have tradition
Why wood pulp is world's new wonder material
Soon to be car parts? (Image: Jim Zuckerman/Corbis) THE hottest new material in town is light, strong and conducts electricity. What’s more, it’s been around a long, long time. Nanocrystalline cellulose (NCC), which is produced by processing wood pulp, is being hailed as the latest wonder material. Japan-based Pioneer Electronics is applying it to the next generation of flexible electronic display
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