The Real Group live in Seoul - Perpetual Motion Thingamabob (a cappella)

What a funny looking gadget someone put here on display A spectacular machine you dont't run into everyday A peculiar propeller and a nickel-plated spring Can you explain the purpose of this fascinating thing? Well, you can see the electricity emerging through to this hole Then proceeding to the engine on the back of this control It distributes the power to the pumps herein and with wind on the propeller that properller makes a spin With a twist and a sound it will toss and turn around And you need no