Abstract: A process and apparatus for indirectly exchanging heat with narrow channel in a heat exchange type reaction zone uses manifold space to interconnect the common ends of channels and to provide controlled distribution of additional reactants. The invention simplifies the operation and construction of the heat exchanging type reaction zone by directly communicating reaction channels and/or heating channels with a manifold located at the end of the channels. The manifold can provides the extra function of mixing additional reactants. The invention promotes simplified intermediate injection of reactants over tube and shell heat transfer arrangements that have been used for similar purposes. Improved process control has particular benefits for exothermic reactions. The narrow channels are preferably defined by corrugated plates. The reaction channels will contain a catalyst for the promotion of the primary reaction.

Abstract: A generally conventional radio controlled toy vehicle is provided with a mother vehicle. The vehicle can be driven inside the vehicle via a ramp. Once inside, tractive drive to road wheels of the vehicle is used to drive road wheels of the vehicle. In this way, the mother vehicle can be controlled to move backwards and forwards, and be steered, by otherwise normal radio signal supplied to the vehicle.