I use nature to play turntables

I invented a blood test without needles

I detect cataracts with a mobile phone

I help people save for health care

My works exist in harmony with the natural world

We started Homeless Man of the Year

I make 100% biodegradable chewing gum

I use oyster shells to make paint.

Témoignage de Clara (promo Bichons)

I turn water from your toilet into drinking water

I make soap from used cooking oil

I put your computer to work for a good cause

I purify water with solar energy

Our students pump fresh water on the playground

My invention revolutionises personal mobility

I created the world's simplest toilets

I collect your food waste to make compost

We transformed a bunker into a hotel

I cross oceans in a boat made of jute

I grow my own clothes