Despite the omnipresence of nuclear-powered steam turbines in today's naval vessels, like so many weapons systems, early efforts were an absolute mess.
Did you know that GPS doesn't work underwater? Neither did we. But apparently it's a big enough problem that the United Kingdom's Ministry of Defense is working on a futuristic solution that will allow more precise navigation by the Royal Navy's submarines and surface ships, while eventually trickling down to consumer-grade mobile devices. That all sounds great, but its abilities aren't anywhere near as cool as its name – the quantum compass.