一台小小的手机，也能为世界贫困的消除做出一份努力。
The ethical dilemma of designer babies - Paul Knoepfler
Technology will change retail shopping - but it's not what you think - Taylor Romero - TEDxMileHigh
Forget Wi-Fi. Meet the new Li-Fi Internet - Harald Haas - TED Talks
How Do Solar Panels Work