Okay, you think this is a kite right? You think I’ve got a kite? I don’t have a kite, I’ve got a helicopter! G’day, Jacob from Make Science Fun here Here I am flying my HeliWindCopter! WooHoo! Now, you give it a bit of a spin The wind causes the blades to spin right But as they spin faster and faster They’re shaped like a planes wing. We’ve got the Bernoulli effect. So as the wind comes by, the air has to go a bit faster over the top. Then it is over the bottom and because of the conservation of energy because it’s going faster, it compensates this with lower pressure and so you have a high pressure on the bottom and a low pressure on the top and that high pressure causes the helicopter to fly. Hey! Hey! Let’s give it a try! Here we go, I gave it a bit of a spin to get it going.. We’ve got a bit of wind now The blades are starting to speed up in the wind Come on blades, here they go Here they go! They’re going faster and faster… The blades are going faster and faster They’re generating some lift Can you hear them? Can you hear them turn? Here we go! I’ve got lift! I’ve got a flying helicopter! WooHoo! What is this thing? Okay, you think this is a kite right? You think I’ve got a kite? I don’t have a kite, I’ve got a helicopter! Anyway, thanks for joining me today. I guess I had some semi-success I would have liked it to be up in the sky a lot further. But anyway, you get the idea. And I’ll catch you later guys. Bye!