If the energy people expend dancing and working out can power cellphones, lights and other electrical appliances, why not apply the same concept to all the energy spent by millions of people every day simply walking along city sidewalks? That's exactly the premise behind Pavegen slabs, which can be inserted among regular sidewalk sections to capture the kinetic energy people spend just walking.

Each rubber slab from UK-based Pavegen Systems gets depressed by about 5 mm each time it gets stepped on. Using just that small movement, it can convert the kinetic energy used into electricity, which is then stored in the slab. Specifically, 5 percent of the energy harvested is used to make the slab's LED glow, making it clear to users that their energy has been captured. The rest can be used to power pedestrian lighting, information displays and many other applications. Pavegen's patent-protected technology has also been used to harvest energy from users' footsteps on stairs.

Following an announcement earlier this year, by the Durban Film Office (DFO) and Durban International Film Festival (DIFF) to host the first international film co-production market on the African continent, organisers are calling for the submission of projects for consideration for the inaugural Durban FilmMart.

"This first African co-production market has the potential to act as a key driver in raising the visibility of film content from Africa," says Toni Monty, acting CEO of the DFO. "We envisage that it will provide African film-makers with the opportunity to pitch film projects to leading financiers and meet and network with internationally reputed directors and producers in order to form alliances for future collaborations"