The top prize in the 2011 James Dyson Awards has gone to the 'AirDrop Irrigation' concept from Australia.

The irrigation concept, a response to poor agricultural conditions in periods of severe drought, pipped design concepts 'Blindspot' from Singapore and 'KwickScreen' from the UK to win the international student design award which runs across 18 countries.

Image courtesy awards website

As part of the competition, they were asked to give their ‘elevator pitch’ describing the inventions, which can be heard in the video below:

Dyson Awards: Edward Linnacre's AirDrop Irrigation

James Dyson discusses winner and runners-up 2011 - Airdrop overcomes drought inspired by a beetle

Visit the competition website here for more project details.