6 ms·

My father was involved in this, he didn’t have a choice and it was dangerous work as even then most of the munitions were unstable. Shells etc sweated tnt which

My father was involved in this, he didn’t have a choice and it was dangerous work as even then most of the munitions were unstable. Shells etc sweated tnt which got absorbed into their skin. He hated it. They also had to contend with the rolling North Sea whilst dumping live ammunition overboard.

morkalork 2y ago
Isn't the sweat from tnt nitroglycerin?
- doodlebugging 2y ago
  Yes. Causes your heart rate to skyrocket when it enters the bloodstream or it increases blood pressure. I'm not 100% sure which but it is used as heart medication.
- CamperBob2 2y ago
  From dynamite, yes, but not from TNT.
- grumblepeet 2y ago
  Yes my bad. It was nitroglycerin.
doodlebugging 2y ago
I can't imagine having to deal with sweating explosives on a boat that was rolling on the sea. The nausea and headaches must've been epic. Years ago I worked on land seismic crews drilling shot-holes for geophysical exploration. We drilled patterns of shallow shot-holes and loaded each hole with 1/4-1/2 pound (0.11-0.23 kg) of dynamite. We carried paper-wrapped sticks and a brass knife to cut the one pound (0.45 kg) sticks to size. There was a lot of bare-handed handling of those sticks and it was July in the desert southwest of the 4 Corners region. They sweated a lot. They had to be packed in to each shot-hole so some poor slob always had to be the guy with the backpack loaded with 35-40 pounds (15.9-18.1 kg) of sweating dynamite sticks and blasting caps. I had that duty more times than I can remember. Backpacks were nowhere near as padded or utilitarian as those you can get today. This thing had an aluminum (aluminium, LOL) frame with a poly bag and after a few minutes carrying that pack the bearer had absorbed enough nitroglycerine to have a booming headache that was so horrible that you would spend the day trying not to lean your head off of vertical so that you wouldn't get more blood rushing to your skull. It was frigging awful. Worst headaches I have ever had. On a funny note, those sticks of powder (dynamite) came wrapped in a very smooth, very absorbent brown paper a lot like cardboard without the corrugations. It was super-soft and a lot of guys would raid the powder boxes looking for the paper to use as toilet paper out in the field. They would try to find pieces that weren't soaked in nitro because if you wiped your ass with a nitro-soaked piece you would quickly be reminded of the close connection between your head and your asshole when the headache hit. We called it dyna-wipe. Fun times.
- southernplaces7 2y ago
  Every so often in HN comments, one finds pearls like this anecdote. Outside the bubble of usually sterile tech narratives and uniquely, hilariously fascinating. Thanks for that... "dyna-wipe".. made me laugh right out loud. Also, wouldn't the nitroglycerin that sweated out as you describe have constantly been in danger of spontaneously exploding, even in small quantities?
  - doodlebugging 2y ago
    Thanks for reading. I'm glad you enjoyed it. We have a large group of people with such diverse life and career experiences that I think it adds value to give some real-life color to some of these discussions and the parent comment immediately reminded me of my own experiences. To answer your question about volatility of the nitroglycerin I'll lean on the safety information that we were given back in the day. We were told that there was minimal danger of explosion from the sweating sticks or the materials that absorbed the nitroglycerin because it required significant energy to initiate an explosion. That energy was to be supplied by the blasting caps. They said we could burn the sticks like firewood without risk of explosion since the nitroglycerin was in a nitro-soaked sawdust matrix wrapped in durable paper. They warned against jumping on the burning sticks or throwing things on the fire if you were trying to build or extinguish the fire though since they might be unstable. Safe handling meant that we were to keep blasting caps separate from "powder" sticks. In normal road transport that was easy since each had separate locked magazines. Once you're in the field, as in this case, you just carried both together and followed normal safety guidelines to minimize the possibility of an accidental detonation of the primer cap. That meant that you minimized impact on the backpack and the copper jackets of the caps and insured that all the cap wires were twisted (shorted) so stray static electricity wouldn't be an issue. The caps all had a two-wire conductor to the primer which needed to be twisted (shunted or shorted) to protect from stray voltages that could cause the cap to fire. They told us that the cap could fire with less than 0.5V and that in the right atmospheric conditions normal static electricity could pop one so it was critical to make sure all were twisted. Normal procedure was to leave them twisted until you were preparing to fire the charge and then you would connect them to the blaster which supplied the voltage to pop the cap. The blasting caps had approximately the same energy as a .30 caliber bullet impact so in theory you could shoot a stick of dynamite and cause it to explode. It's been 40+ years since I worked out there and I still wouldn't trade the experience for anything else. It was foundational experience in field operations that set me up for a long career as a geophysicist.

morkalork 2y ago

Isn't the sweat from tnt nitroglycerin?

doodlebugging 2y ago
Yes. Causes your heart rate to skyrocket when it enters the bloodstream or it increases blood pressure. I'm not 100% sure which but it is used as heart medication.
CamperBob2 2y ago
From dynamite, yes, but not from TNT.
grumblepeet 2y ago
Yes my bad. It was nitroglycerin.

doodlebugging 2y ago

I can't imagine having to deal with sweating explosives on a boat that was rolling on the sea. The nausea and headaches must've been epic. Years ago I worked on land seismic crews drilling shot-holes for geophysical exploration. We drilled patterns of shallow shot-holes and loaded each hole with 1/4-1/2 pound (0.11-0.23 kg) of dynamite. We carried paper-wrapped sticks and a brass knife to cut the one pound (0.45 kg) sticks to size. There was a lot of bare-handed handling of those sticks and it was July in the desert southwest of the 4 Corners region. They sweated a lot. They had to be packed in to each shot-hole so some poor slob always had to be the guy with the backpack loaded with 35-40 pounds (15.9-18.1 kg) of sweating dynamite sticks and blasting caps. I had that duty more times than I can remember. Backpacks were nowhere near as padded or utilitarian as those you can get today. This thing had an aluminum (aluminium, LOL) frame with a poly bag and after a few minutes carrying that pack the bearer had absorbed enough nitroglycerine to have a booming headache that was so horrible that you would spend the day trying not to lean your head off of vertical so that you wouldn't get more blood rushing to your skull. It was frigging awful. Worst headaches I have ever had. On a funny note, those sticks of powder (dynamite) came wrapped in a very smooth, very absorbent brown paper a lot like cardboard without the corrugations. It was super-soft and a lot of guys would raid the powder boxes looking for the paper to use as toilet paper out in the field. They would try to find pieces that weren't soaked in nitro because if you wiped your ass with a nitro-soaked piece you would quickly be reminded of the close connection between your head and your asshole when the headache hit. We called it dyna-wipe. Fun times.

southernplaces7 2y ago
Every so often in HN comments, one finds pearls like this anecdote. Outside the bubble of usually sterile tech narratives and uniquely, hilariously fascinating. Thanks for that... "dyna-wipe".. made me laugh right out loud. Also, wouldn't the nitroglycerin that sweated out as you describe have constantly been in danger of spontaneously exploding, even in small quantities?
- doodlebugging 2y ago
  Thanks for reading. I'm glad you enjoyed it. We have a large group of people with such diverse life and career experiences that I think it adds value to give some real-life color to some of these discussions and the parent comment immediately reminded me of my own experiences. To answer your question about volatility of the nitroglycerin I'll lean on the safety information that we were given back in the day. We were told that there was minimal danger of explosion from the sweating sticks or the materials that absorbed the nitroglycerin because it required significant energy to initiate an explosion. That energy was to be supplied by the blasting caps. They said we could burn the sticks like firewood without risk of explosion since the nitroglycerin was in a nitro-soaked sawdust matrix wrapped in durable paper. They warned against jumping on the burning sticks or throwing things on the fire if you were trying to build or extinguish the fire though since they might be unstable. Safe handling meant that we were to keep blasting caps separate from "powder" sticks. In normal road transport that was easy since each had separate locked magazines. Once you're in the field, as in this case, you just carried both together and followed normal safety guidelines to minimize the possibility of an accidental detonation of the primer cap. That meant that you minimized impact on the backpack and the copper jackets of the caps and insured that all the cap wires were twisted (shorted) so stray static electricity wouldn't be an issue. The caps all had a two-wire conductor to the primer which needed to be twisted (shunted or shorted) to protect from stray voltages that could cause the cap to fire. They told us that the cap could fire with less than 0.5V and that in the right atmospheric conditions normal static electricity could pop one so it was critical to make sure all were twisted. Normal procedure was to leave them twisted until you were preparing to fire the charge and then you would connect them to the blaster which supplied the voltage to pop the cap. The blasting caps had approximately the same energy as a .30 caliber bullet impact so in theory you could shoot a stick of dynamite and cause it to explode. It's been 40+ years since I worked out there and I still wouldn't trade the experience for anything else. It was foundational experience in field operations that set me up for a long career as a geophysicist.