As gas prices rise, we are at the beginning of a renaissance in nuclear energy. What is different about the new nuclear technologies? A simple picture will be painted of the physics of nuclear energy and what is new in nuclear around the world. We will start with how nuclear fission happens and will illustrate how this amazing resource is used to create electricity in our homes. The technologies of the future are getting smaller with new materials and factory manufacturing, but how do they work? Which countries are leading the way?