I make cardboard furniture

I reveal the secret life of water

Learn to praise yourself

My pencils make plants growing

I use oyster shells to make paint.

I put a stop to stuttering in under three days

I'm building sustainable earthen roofs

Our drivers tackle some of Africa's toughest roads to save lives.

I save lives with mobile phones

I created the world's first solar cycle path

I take the elderly for a ride on rickshaws

I invented a sail to power cargo ships

I created the world’s largest work of art made from recycled objects

My cooker lets nothing go to waste

I collect your food waste to make compost

I create fuel from algae

I keep women off the streets by training them to be mechanics

We started Homeless Man of the Year

I discovered a rich oil field in Tokyo!

My invention could save your skin