What is Big Think?  

We are Big Idea Hunters…

We live in a time of information abundance, which far too many of us see as information overload. With the sum total of human knowledge, past and present, at our fingertips, we’re faced with a crisis of attention: which ideas should we engage with, and why? Big Think is an evolving roadmap to the best thinking on the planet — the ideas that can help you think flexibly and act decisively in a multivariate world.

A word about Big Ideas and Themes — The architecture of Big Think

Big ideas are lenses for envisioning the future. Every article and video on bigthink.com and on our learning platforms is based on an emerging “big idea” that is significant, widely relevant, and actionable. We’re sifting the noise for the questions and insights that have the power to change all of our lives, for decades to come. For example, reverse-engineering is a big idea in that the concept is increasingly useful across multiple disciplines, from education to nanotechnology.

Themes are the seven broad umbrellas under which we organize the hundreds of big ideas that populate Big Think. They include New World Order, Earth and Beyond, 21st Century Living, Going Mental, Extreme Biology, Power and Influence, and Inventing the Future.

Big Think Features:

12,000+ Expert Videos


Browse videos featuring experts across a wide range of disciplines, from personal health to business leadership to neuroscience.

Watch videos

World Renowned Bloggers


Big Think’s contributors offer expert analysis of the big ideas behind the news.

Go to blogs

Big Think Edge


Big Think’s Edge learning platform for career mentorship and professional development provides engaging and actionable courses delivered by the people who are shaping our future.

Find out more

A Cell Phone Powered by Urine

July 17, 2013, 11:21 AM

It is the bane of our existence that the electronic devices that we rely on so heavily have such a short battery life. 

And yet, we are blessed to have a limitless supply of one energy source that can keep our devices going: urine.

In the video below, Dr. Ioannis Ieropoulos, a researcher at Bristol Robotics Laboratory, explains how the microbial fuel cell acts as an energy converter. Urine is exceptionally good as a fuel for tiny organisms that break down waste and produce electrons.

Ieropoulos and his team have harnessed enough power through a process they have invented to power a number of electronic devices as stand-alone demonstrations. In fact, Ieropoulos says his team has reached the point where they can power up a normal mobile phone.

Watch here:

(h/t Independent)


A Cell Phone Powered by Urine

Newsletter: Share: