Abstract: Bullet proof, or bullet resistant, materials have been produced and improved since at least the Middle Ages. Initially these were simply the armor that fighters wore in order to protect themselves during battles. Today the goal is to manufacture a material that would protect both people and property from high speed projectiles. The bullet resistant material that we wish to present will be made out of a strain hardened carbon steel. Strain hardening will provide for a stronger material. In addition, carburization will supply extra strength. A special technique of production needed to manufacture our bullet resistant material will also be presented in this document. The product proposed by us can easily be used as armor for tanks, planes, helicopters, ships, and any protective walls, such as in bunkers. It can also be used as a material for bullet resistant vests.

Abstract: The usual safety feature of oil pipes is the shut-off valve. Whenever there is a need, such a valve can be closed, and oil is prohibited from spilling into the surroundings. However, the shut-off valve may sometimes be inaccessible. It may be buried deep in the mud, or even worse, there may be no shut-off valve. Such an oil spill could prove disastrous. Fortunately, our invention would provide a solution to just such a situation. We would need to send submarine robots to the scene of the accident. These robots, controlled from the ship on the surface, would insert our specially designed hydraulic head into the pipe. This head would then seal the pipe, stopping any further oil spill.