3 ms·
That's old school. I remember hearing that similar was done already during prohibition where they used some sort of glue in torpedo which would release a small
by ollifi 12y ago
That's old school. I remember hearing that similar was done already during prohibition where they used some sort of glue in torpedo which would release a small buoy after few days so the lost booze could be found.
- brk 12y agoSome of those also used a salt block for the "glue". It would dissolve over the course of a day or two, releasing a buoy or indicator.
- jws 12y agoVarious sorts of commercial fishermen use these to keep the buoys of their traps submerged until pickup time. This prevents both accidental loss from fouling boats and poaching. You can get them in grades from 1 to 30 days, though temperature also gets to play a role. http://www.neptunemarineproducts.com/galvanic-timed-releases/ http://www.neptunemarineproducts.com/galvanic-timed-releases... Looks like you can also use them to prevent "ghost fishing" where a lost fish trap continues to trap fish for years or for timed bait release schemes.