<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>sjcsjc</author><text>&amp;quot;The process relies on the incredibly short pulses from the laser. These pulses last only a few picoseconds — a picosecond to a second is like a second compared to 30,000 years.&amp;quot;&lt;p&gt;Nice bit of exposition.</text><parent_chain></parent_chain></comment><story><title>Welding breakthrough could transform manufacturing</title><url>https://phys.org/news/2019-03-welding-breakthrough.html</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>Tor3</author><text>Very interesting. Welding glass and metal together instead of using an adhesive. This could be big, depending on how long-term testing comes out. The trick seems to be to use picosecond laser pulses to avoid running into thermal issues with the very different materials.</text><parent_chain></parent_chain></comment><story><title>Welding breakthrough could transform manufacturing</title><url>https://phys.org/news/2019-03-welding-breakthrough.html</url></story>