Why Do Ships Have Two Balls?

My eternal thanks to the community for supporting this video: ✩ABOUT THIS VIDEO✩ In this video, we investigate the magnetic compass used on ships and discuss the correctors needed to keep it accurate. ✩JOIN OUR COMMUNITY✩ The community is our space for anyone that wants to get even more from Casual Navigation. I am eternally grateful for all members of the community as you are the ones that help me and continue to drive this channel forward. When you join, you’ll instantly become much closer to the channel, with a range of perks and rewards depending on the tier you select. ➼ Ad-Free ➼ Early Access ➼ Bonus Content ➼ Get Involved ✩WITH THANKS✩ ➼ Images used under license from Forklift - shaineast / Ship - shaineast / ✩DISCLAIMER&