Thought provoking keynote talk by Ross Anderson at #CCS16 about DigiTally decentralized payment system (for Africa)

Bitcoin’s Dark Side Could Get Darker
bit.ly/1Wlvhun
By Tom Simonite

Hello Earth! Can you hear me? #WakeUpPhilae

Andrew Miller and team's _secure_ Ethereum programming guides: mc2-umd.github.io/ethereumlab/

iPhone text message bug can crash Apple Watch, iPad and Mac too trib.al/k5r0mrR

Teacher/Student E-mail Etiquette. phdcomics.com/comics.php?f=1…

#ثانوية_عامة ردا على اللي بيتحجج : لو انت شايف إن من حقك تغش عشان التعليم مش عاجبك .. يبقى الحرامي من حقه يسرق عشان الاقتصاد وحش !!

The Evolution of Intellectual Freedom: bit.ly/nORjtb (new comic!)

How can #TED enrich education? Join the TED-ED Brain Trust: http://education.ted.com

I'll never forget seeing protestors attacked, banging on barricades - sending a message. We are strong, we are not afraid.

I'm ready & keen to come to #Egypt every week to work on constructive initiatives Education, Healthcre, People Development. Any way to help

A 10 year old beggar is walking around with a trash & cleaning #tahrir . I tried 2 give him money, he refused & said 'I m cleaning Egypt'

Merger of Two White Dwarf Stars: http://ow.ly/3G8cf

[Image of the Day] Where Stars Are Born: This mosaic image is the sharpest wide-angle view ever obtained of... http://go.nasa.gov/gdmdHn