It is becoming increasingly important to understand the electro static discharge (ESD) sensitivity of energetic materials. The source for ESD can occur when two materials are brought into contact and then separated. The friction between the particles as they move can generate an electric charge build up within the mixture and results in a difference of electrical potential that can lead to an ESD event. Nano-particle composite energetic materials (CEM) show great potential for energy generation applications and much research confirms the enhanced reactivity of these materials. Less well...

When Bells and Mitch, two young space aliens from the planet Exergy, crash-land on Earth, they must apply the engineering design process to get themselves back home. Captivated by the beautiful yellow dandelions near their crash site, Bells and Mitch investigate the dandelions life cycle. Observing how the flowers disperse their seeds, they construct a mechanical replica to launch their ship back into space. Showing how nature itself can instruct us in engineering, Hunt and Pantoya take young readers on a journey of discovery and problem solving. The authors worked with early childhood...