Whats the range and payload of that supergun he was suposed to be building?
According to Whiskypedia, the Babylon gun was supposed to be able to put a 2000 kg payload into orbit. So potentially unlimited range, but rather short of the required weight for a nuclear weapon. Which would have to be of the implosion type by default, not the much simpler gun type, which would be too unstable to allow it to be fired (correct me if I'm wrong).