HAARP (High-Frequency Active Auroral Research Program) is a high-powered radio transmission research facility in Alaska jointly operated by the US Navy, Air Force and several universities; a BIG particle gun.
RCON is a text based protocol completely unrelated to the Source RCON protocol. It is designed with readability, ease of implementation, and human usability in mind.
Answer Wiki. An RCBO is a type of circuit breaker with two functions. Electricians will install an RCBO (Residual Current Breaker with Overcurrent) where there is a need to prevent overload on a particular circuit at the same time as preventing anyone getting a shock that has the potential to kill them.