Re: Not magnetic field, more star field?
Hmmm.... An ancestor of mine was born in Charleston, South Carolina in 1757. He happened to be in the UK when the US revolutionary war broke it. He was "detained", escaped, got to New England, signed on board a privateer (pirate...to the other side), went out on a cruise, when the ship returned to port, he signed off the privateer.
Then he made his way home to SC. Three days later, he a had a commission as a Lieutenant in the SC Navy (I'm guess that he used the proceeds of the privateer cruise to buy it), was assigned to a very small warship (16-gun Brig'o'war). The ship captured a British stores ship. My ancestor was appointed to command the prize crew and was able to get the prize back to a friendly port. When the warship returned to port, the captain retired and suggested that command be given to my ancestor...which was done. This was all before he was 20. He was in command for the following 3 years, during which they were involved in the capture, recapture or sinking of 63 vessels. What was that about the competence of Young Gentle(wo)men?