Yossi Sassi: The power of music to unite the world

Raymond Wang (age 14): Harvesting energy from rain, hail and snow

Vanessa Berlowitz: Extreme nature documentaries and how to survive them

Josh Atkins: A vision for TV's future

James Nester & Albert Sauter: Garden gnome travels the world for science

Gerald Moy: The dangers and delights of global diets

Laurence Kemball-Cook: How to turn your footsteps into energy

Rose George: Take toilets seriously

Katharine Harborne: Let's rethink our relationship with plants

Alastair Parvin: Architecture for everyone, by anyone

James Bridle: A new aesthetic for the digital age

Farida Vis: Social media and the life cycle of rumors

Feng He: Crowd funding creativity in China

Faith Jegede: Autism through a sibling's eyes

James Freedman: Secrets from a professional pickpocket

Lena Edlund: How to build a house with no money -- or electricity

Mike Wood: Catapulted cabbage comedy

Edmond Hui: The paper airplane redesigned

Yu "Jordy" Fu: An artistic vision for tomorrow's buildings

Daniel Reisel: The neuroscience behind evil

Aral Balkan: Great design should empower, amuse and delight

Pete Pattisson: Education should apply to real life

Eleanor Longden: Learning from the voices in my head

Harry Hui: Music dreams empower young Chinese artists

James Alliban: Experimental art for your iPad and phone

Doreen Baingana: The role of offensive language in novels

Betty Ni: Powerful stories of recovery using stem cells

Chen Xi Huang: The ancient art of hand puppetry

Richard Brown: The $49 tablet PC

Calvin Chin: Can China innovate?

Stefen Chow: Exploring what it means to be poor through food photography

Lei Lei: The story of an artist through animation

Peter Ting: A committee for beautiful cakes

Amy Zhou: Helping people find happiness through giving

Kamau Gachigi: Spreading African innovation through fab labs

Nadia Orlova: How marketers can practice cultural literacy

Bonita Lim: A family legacy of giving

Enio Ohmaye: Can we choose not to suffer?

Mary Abukutsa-Onyango: Why we should eat more indigenous plants and fruits

Nnaemeka Ikegwuonu: On the air: A radio station just for farmers

Andrew Yu: "Teaching boxes" for rural classrooms

Jiaojiao Chen: Forgotten stories from China's history

Rob Burnet: The impact of comics in print and on radio

Anas Aremeyaw Anas: My mission to name, shame and jail the corrupt

David Li: When piracy inspires innovation

Jonas Merian: My "upcycled" furniture

Liu Bolin: Painting myself invisible

Julie Wangombe: A poetic reintroduction to Africa

The Kenyan Boys Choir: Chant, sing, play!

Zhou Yunpeng: Three gifts blindness brought me

Chief Nyamweya: An artist's solution to a nation's identity crisis -- comic books

Saki Mafundikwa: The intricate world of Afrikan writing systems

Paula Kahumbu: The power of a crisis story to create change

Dayo Olopade: The new African narrative

Dayo Ogunyemi: Spreading stories using affordable digital cinemas

Abdul Kassim: Real change requires listening

Dominic Wanjihia: Using biogas to power African homes

Yao Chung-Han: The language of lasers and sound

Josiah Omotto: Harvesting biogas from human waste

Munir Virani: Why I love vultures