http://acorncentre.co.uk/93d3cuYWNvcm5jZW50cmUuY28udWs6e918d51/acor=100542904.html Do you know the atomic weight of hydrogen? It’s 1.008, which makes today, October 8, a great day to celebrate National Hydrogen and Fuel Cell Day! But at the Department of Energy, we’re not just celebrating the confluence of the calendar and the periodic table. We’re starting to see a hydrogen future to our roads today.