Graphene aerogel is the world's lightest material
While Office Cat might not fully understand the exact carbon nanotube freeze-drying method that gave birth to the world's lightest material – graphene aerogel – he will happily raise a saucer of milk to the scientists involved. The wonder-material is only twice as dense as hydrogen and can be supported by blades of grass. Praise science.
Source: Gizmag, image: Zheijang University
iOS Facebook Messenger gets VoIP
UK users rocking Facebook Messenger for iPhone will be able to use the app to make free calls and leave voice messages to other users as the service is updated with VoIP functionality today. Though Office Cat does wonder if people still call each other at all any more.
Google offers £2 million prize for UK charities
Google is offering the chance for four UK charities to win £500,000 each in its Global Impact Challenge which encourages entrants to find way technology can help improve lives. The competition judges include Sir Tim Berners-Lee and Sir Richard Branson, who will pick out three winners. The fourth winner will be voted by the public.
Source: Tech Radar
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