He's running laps while the ship is moving. The little circles is him backtracki... | Hacker News

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		anonu 14 days ago \| parent \| context \| favorite \| on: France's aircraft carrier located in real time by ... He's running laps while the ship is moving. The little circles is him backtracking against the direction of the ship. It seems to me the ship is just going in a straight line.

emilburzo 14 days ago [–]

Yep, that looks like a paraglider circling in a thermal while being drifted due the wind.

Random tracklog example: https://www.xcontest.org/world/en/flights/detail:mattmozza/2...

(zoom in until you see circles on the track line)

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