Flapping-wing robo-bird uses two tails to fly fast or slow Many readers will remember the MetaFly, a remote-control robotic insect that flies by actually flapping its wings. Well, its inventor is back ...

I’m really amazed by this video, because I always dreamed about doing this. Watch Dutch mechanical engineer Jarno Smeets take off and fly just by flapping wings of his own invention—like a real bird!

Many of us watch birds take off into flight right before our eyes every day, but it happens so quickly that we don’t get a chance to observe the mechanics responsible for jump-starting the bird’s ...