liquid compass

Despite these advances, the liquid compass was not introduced generally into the Royal Navy until 1908 .

On January 25, 1935 Vohlonen was granted a patent number 16285 for a method of manufacturing a liquid compass and a liquid compass manufactured accordingly.

Teams were not told that the direction facing them on the liquid compass was the direction they were facing, leading many to search the wrong area of the beach until they realized their mistake.

On April 10, 1933 Tuomas Vohlonen applied for a patent for a liquid compass, with the description "liquid compass with compass needle and liquid entirely sealed in a container made of celluloid".