<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>vidarh</author><text>25 years or so ago, I worked on a tiny part of software for testing of what I think is a precursor for that mapping submersible. I did a two week project for Norwegian Defence Research Establishment to write software to let them relay scaled down real-time mapping data for debugging from the small boat tracking the submersible to land or a nearby bigger ship...&lt;p&gt;It was limited by wanting it to be cheap, so we used GSM data modems to transmit a 2400 bps stream of the map data, using a slight variation over z-modem to retransmit blocks on error, and code to reconnect and continue the transmission from the last successful block if we lost connection.&lt;p&gt;I&amp;#x27;m sure that code was ditched many years ago, as it makes no sense with modern hotspots, but it was a fun project to work on, and I got to go out on the tracking boat when we tested it.</text><parent_chain></parent_chain></comment><story><title>Medieval ship found in Norway&apos;s biggest lake</title><url>https://sciencenorway.no/archaeoloy-medieval-history-ships/shipwreck-discovered-at-the-bottom-of-norways-largest-lake-possibly-700-years-old/2110769</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>taude</author><text>Tangentially related to this article, but if you&amp;#x27;re ever in Sweden, I recommend checking out the Vasa Museum [1].  It&amp;#x27;s a 1600&amp;#x27;s ship that was pulled off the sea floor.&lt;p&gt;[1] &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.vasamuseet.se&amp;#x2F;en&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.vasamuseet.se&amp;#x2F;en&lt;/a&gt;</text><parent_chain></parent_chain></comment><story><title>Medieval ship found in Norway&apos;s biggest lake</title><url>https://sciencenorway.no/archaeoloy-medieval-history-ships/shipwreck-discovered-at-the-bottom-of-norways-largest-lake-possibly-700-years-old/2110769</url></story>