iPlayer Radio What's New?
Image for 31/07/2012

Play now 18 mins


18 minutes
First broadcast:
Tuesday 31 July 2012

Researchers have created a system that could enable people with paralysis to control a wheelchair with eye movements alone. It requires a camera from a video games console, a modified pair of spectacles, and some clever code. The new eye-tracking system, from hardware that costs a few hundred dollars, rivals existing ones costing thousands of dollars. The system is good enough to control computer games but, say researchers, it could potentially even enable wheelchair control for people with disabilities. Aldo Faisal, one of the team behind the GT3D eye tracker joins Click to discuss the system.

German researchers have found a cheap way of gathering data on emigration in populations. In many countries gathering official statistics on migration is expensive and subsequently incomplete or out of date. But email accounts might change all that. Emilio Zagheni from the Max Planck Institute for Demographic Research talks to Gareth Mitchell about the use of anonymous email traffic.

Have you ever imagined that a bridge sang to you as you walked over it? Well it might just be that you have been crossing the Millennium Foot Bridge in London. It is the work of a team including the music producer Martyn Ware whose sound sculptures have been deployed in various public spaces over the last decade. The latest project, close to the iconic Tower Bridge, has been opened in time for the Olympic Games. Click talks with Martyn Ware and the poet Mario Petrucci about their collaboration on Tales from the Bridge.


3 items



  1. Image for Click


    How computers and digital technology affect our lives around the world. Presented by Gareth…

  2. Image for Science Hour

    Science Hour

    Science news and highlights of the week from BBC World Service. The Science Hour is a weekly…

  3. Image for Tech Tent: Business and Technology

    Tech Tent: Business and Technology

    Business and Technology news from the BBC's technology desk. Tech entrepreneurs and experts give…

  4. Image for Trending


    How social media is reshaping culture, politics and society, Trending explains the stories the world…

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.

Added. Check out your playlist Dismiss