Scientist Saad Bhamla is on a mission to answer a question most people don't think to ask: How do insects pee? Taking inspiration from the incredible "butt flickers" of the glassy-winged sharpshooter, Bhamla presents a fascinating study of the physics behind how bugs take care of business and invites us to be more curious about the seemingly mun...

Inventor Manu Prakash turns everyday materials into powerful scientific devices, from paper microscopes to a clever new mosquito tracker. From the TED Fellows stage, he demos Paperfuge, a hand-powered centrifuge inspired by a spinning toy that costs 20 cents to make and can do the work of a $1,000 machine, no electricity required.