"http://yt.cl.nr/__zB80Saglk"
Where does gas and electricity come from? This short film explains how National Grid takes the energy from its source, delivering it to homes and high-streets around the country.
So what exactly is a fuel cell, anyway? Why are governments, private businesses and academic institutions collaborating to develop and produce them? Fuel cells generate electrical power quietly and efficiently, without pollution. Unlike power sources that use fossil fuels, the by-products from an operating fuel cell are heat and water. But how does it do this?
"http://yt.cl.nr/VSwfqaVeCWs"
850 people in New Orleans were knocked back onto mattresses in human dominoes to break the world record for the number of people taking part.