Markus Fischer : A robot that flies like a bird

                              
TED 2011
Markus Fischer : A robot that flies like a bird (transcript)
Summary
In this TED talk, you can see a robot which can fly like a bird. It's named SmartBird. Birds fly only by flapping their wings. It’s reproduced by ultralight weighted materials with carbon fiber, and by the gear that exactly transfers the circulation of the motor.
The company that creates it aims energy efficiency by the very lightweight structure as professionals in the field of automation, and aims to learn more about pneumatic and air flow phenomena.
SmartBird showed us beautiful flying indoors.
However, I'm worried whether SmartBird can fly outside a building before the wind because the previous talk said that machines will be susceptible to disturbances such as wind gusts.

Words in this story
pneumatic /n(j)uːmˈæṭɪk/ containing or operated by air or gas under pressure.
propulsion /prəpˈʌlʃən/ the action of driving or pushing forward
proportion /prəpˈɔɚʃən/ a part, share, or number considered in comparative relation to a whole.
aerodynamic /ɛ̀roʊdaɪnǽmɪk/
efficiency /noun/ the state or quality of being efficient.
efficient /adj/ (especially of a system or machine) achieving maximum productivity with minimum wasted effort or expense.