Abstract: A messaging system has a first computer and a second computer connected via a network. A first Edge Terminal Device (ETD) connects to the first computer and a second ETD connects to the second computer. The first ETD is responsive to a received message transmitted by the second ETD to reproduce content of the received message and to accept user input in response to the message. A software product has instructions, stored on computer-readable media, wherein the instructions, when executed by a computer, perform steps for controlling the computer and an ETD connected to the computer, including: instructions for interpreting user inputs of the ETD; instructions for re-characterizing the user inputs as directive instructions for a second computer, the directive instructions having control information for a second ETD connected to the second computer; and instructions for capturing content from the ETD, through the computer and second computer, for delivery to the second ETD.

Abstract: An energy absorbing body comprising glass spheres embedded in elastomer, preferably with a metal reinforcing skeleton, for example aluminium honeycomb extrusion.

Abstract: A solid propellant rocket motor is provided with a liner between the motor case and the propellant, the liner comprising a terpolymer of ethylene, propylene and a nonconjugated diene and inert fillers. Ablative fillers such as heavy metal halides, calcium hydroxide and magnesium hydroxide may be included.