What is it?

[AJ Dual]

Taken from here: http://www.ar15.com/forums/t_1_5/1678259_Help_me_identify_this_thingummy_thats__probably__not_a_bomb___.html&page=1

On a plastic garbage can lid, black/yellow thing protruding from under the glass bulb-thing is just a screwdriver propping it up.



Close up of the bulb and it's mysterious binary chemical contents.



My WAG is that either an impact mixes the liquid and the powder, or maybe heat from the brass rod as some sort of probe pushes the liquid into the powder chamber creating a visible sign that "X has happened".

Like an emergency boiler indicator, or for smelting metals to know a certain temperature has been reached, before the advent of thermocouples and non-contact IR thermometers.

 

[vaskidmark]

Heat the silver-colored tip and tell us what happened. 

Might want to get someone to hold your beer while you do that.

stay safe.

[Devonai]

It's a standoff device for firefighters to safely detonate a pressurized container before a BLEVE can erupt.  The device is fired from a standard-issue 70# crossbow.  The Tannerite bulb detonates upon impact and allows the designated marksman to direct a more meaningful venting from the compromised container.

[brimic]

It's a standoff device for firefighters to safely detonate a pressurized container before a BLEVE can erupt.  The device is fired from a standard-issue 70# crossbow.  The Tannerite bulb detonates upon impact and allows the designated marksman to direct a more meaningful venting from the compromised container.

Oooh, do tell more.!
Is it made to rupture a tank?

[Tallpine]

It's a standoff device for firefighters to safely detonate a pressurized container before a BLEVE can erupt.  The device is fired from a standard-issue 70# crossbow.  The Tannerite bulb detonates upon impact and allows the designated marksman to direct a more meaningful venting from the compromised container.

I have one of those in .30-30     

I never heard of that tactic - maybe we need to add to the equipment list on our fire trucks 

[Devonai]

It worked great in laboratory and computer simulations.

 

[cassandra and sara's daddy]

Cross bow! Might be a lil close if it goes boom more spectacularly.
The guy who designed it needs to try it first


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[Hawkmoon]

Cross bow! Might be a lil close if it goes boom more spectacularly.
The guy who designed it needs to try it first

Case in point: The Confederate submarine H. L. Hunley. Supposedly it successfully sank a Union ship. However, it didn't make it back afterward. One theory is that its "torpedo" was not fired, but was simply carried on a 16-foot spar and pushed into contact with the ship's hull before being detonated. Theory is that the blast also damaged the sub.

http://www.cnn.com/2014/02/14/travel/civil-war-submarine-hunley/index.html