When I first heard that Barack Obama was going to be the first black president, I wanted to do the smallest, biggest tribute in history.

The microscopic world became my obsession.

People find it very, very difficult to believe what I've done. Scientists have seen my work and they can't explain it. Even nano-scientists have seen it and been totally shocked. But if any man on Earth wants to challenge me, I'm ready. Bring it on.

At home, when the heating pipes made noises, I imagined a tiny person was in there skipping with a rope. The fantasy world of tiny things became my escape.

When I first heard that Barack Obama was going to be the first black president, I wanted to do the smallest, biggest tribute in history.

At school I'd want to be so small that nobody could see me, and so my work depicts and reflects me - what it felt like to grow up in a world of pain.

Flying helicopters is what I do for fun.