If I were to build a large (many nodes and large distances) I would consider using IP before I invented my own protocol. Designing network protocols (such as IP) is a very complicated business, in the sense that there are a lot of things that go wrong. And, as you learn more about networking technologies, you would probably end up adding more features that are already provided by IP. Or, perhaps not adding them, even though they are needed to meet your requirements.
And, if you have more than a trivial topology, you probably want some sort of automatic routing. There are numerous routing protocols available for use in IP networks. And, desiging a routing protocol is very complicated, in that many problems can be very subtle.
As energy efficiency becomes more and more a concern for makers of electronics devices, researchers are coming up with new ways to harvest energy from sound vibration, footsteps, and even electromagnetic fields in the air.
The government wants to study your brain, and DARPA wants to use similar information to give robots true autonomy beyond any artificial intelligence developed to date. Sound like science fiction? It's not.
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is