Picture via Wikimedia
You row to go forward but instead of water it’s wheel
Fun fact: Every year about 10 randomly chosen white middle aged dads in the west are afflicted with rowbike madness and start trying to revolutionize this as the next best thing. They pull of frankly impressive engineering feats to produce the most contraption bicycle yet devised, here’s an early 2020s example


I found a YouTube link in your post. Here are links to the same video on alternative frontends that protect your privacy: