Self-flying Stanford robocopter learn tricks though observation

Brow clenched in focus, expert radio-control pilot Garett Oku, of Mountain View, Calif., guided a 4-foot-long model helicopter through a dizzying sequence of aerobatic tricks, punctuated by an upside-down tailspin called an ``inverted hurricane.'' Then he dropped the controls.

If you want to include this story in your blog, copy and paste this formatted text: