Because somebody posted it and others found it curious and interesting - among them me. I didn't upvote it, but I found the potential explosion velocity surprising. It may not be of interest to you, but hey, I usually ignore like 50% of the HN homepage right away since I don't care about them. However, I don't go run around and post "why is this on HN?" in those threads.
The stickbomb is an interesting device, because it is entirely mathematical, and is thus a great hack because normally, you're using a tongue depressor to .. do depressor'y things ...
Xylakant|12 years ago
TeMPOraL|12 years ago
Also, because some people (myself included) upvoted it.
danielweber|12 years ago
fit2rule|12 years ago
And by the way .. You are reading Hacker News.
richardlblair|12 years ago
kaybe|12 years ago
https://xkcd.com/1053/