A US$49 personal autonomous micro UAV?

A US$49 personal autonomous micro UAV?: "Imagine if you had your own tiny quadrotor unmanned aerial vehicle (UAV) that you could control with your voice, that would automatically follow you while avoiding obstacles, and that could shoot and stream video of you using an onboard camera. Now imagine that you paid less than 50 bucks for it. Well, if the hype is to be believed, that’s just what tech firm Always Innovating is promising with its MeCam."

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Scientists turn light into a tractor beam

Scientists turn light into a tractor beam: "From The Skylark of Space to Star Wars, no self-respecting science fiction spaceship would break orbit without a tractor beam on board. We’re still a long way from locking on to errant shuttlecraft, but a team led by Dr. Tomas Cizmar, Research Fellow in the School of Medicine at the University of St. Andrews, Scotland, has turned a laser into a tractor beam that works on the microscopic level."

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