Ping, as in ping me, meaning “contact me,” comes from the onomatopoeic ping we get from technology such as sonar. This is part of a complete episode.
lawnmower survey n.— «Over a 20-hour mission the team surveys 5km x 4km sections by running the AUV up and down, building up about 15 overlapping swaths of sonar data in a process known as a lawnmower survey. The multi-beam sonar produces...