Great example of the power of YouTube to help disseminate information to a global audience through word-of-mouth and viral marketing.

Johnny Lee is a researcher in the Human-Computer Interaction Institute at Carnegie Mellon University in the USA. In this TedTalk he shows his work at applying innovative ideas using low cost objects.

What is equally impressive is how fast news of his work has spread globally, the level of interest and the speed of a commercial application of one of his inventions.