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Posted: 11/30/2018 6:57:22 PM EDT
[#1]
White phosphorus is what you seek.
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Posted: 11/30/2018 6:59:39 PM EDT
[#2]
Quoted:
Ever since seeing the video of the hammerhead shark trying to attack a kayaker, I've been reluctant to get back into salt water. https://www.youtube.com/watch?v=92qzZD99cao How big of a grenade would I need to drive away a shark? Not necessarily kill it -- diffiicult to do since underwater and moving -- but to blast its sensory apparatus so hard that it would decide to seek prey elsewhere? Waterproofed firecracker, pineapple grenade, tsar bomba? Please specify in grams of TNT because uh reasons. 3mm laser beam |
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Posted: 11/30/2018 7:00:26 PM EDT
[#3]
Depth charge
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Posted: 11/30/2018 7:00:52 PM EDT
[#4]
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Posted: 11/30/2018 7:01:49 PM EDT
[#5]
Quote HistoryQuoted:
White phosphorus is what you seek. |
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Posted: 11/30/2018 7:02:06 PM EDT
[#6]
I really want a bangstick/power head.
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Posted: 11/30/2018 7:08:57 PM EDT
[#7]
You're going to need a bigger boat.
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Posted: 11/30/2018 7:11:10 PM EDT
[#8]
you want a concussion grenade aka mini depth charge
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Posted: 11/30/2018 7:12:12 PM EDT
[#9]
Scuba tank should do it.
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Posted: 11/30/2018 7:15:02 PM EDT
[#10]
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Posted: 11/30/2018 7:20:41 PM EDT
[#11]
About depth charge sized.
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Posted: 11/30/2018 7:22:02 PM EDT
[#12]
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Posted: 11/30/2018 7:22:25 PM EDT
[#13]
Jaws 3 answered this inquiry.
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Posted: 11/30/2018 7:23:57 PM EDT
[#14]
Bang stick
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Posted: 11/30/2018 7:24:51 PM EDT
[#15]
But they were here first! They're just misunderstood! We can coexist in harmony! /liberal
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Posted: 11/30/2018 7:26:19 PM EDT
[#16]
Quote HistoryQuoted:
you want a concussion grenade aka mini depth charge |
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Posted: 11/30/2018 7:34:56 PM EDT
[#17]
Quote HistoryQuoted:
Took a minute, but this is the answer. Shock waves are much more powerful underwater and travel further. Quote HistoryQuoted:
Quoted:
you want a concussion grenade aka mini depth charge https://en.wikipedia.org/wiki/MK3_grenade |
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Posted: 11/30/2018 9:08:16 PM EDT
[#18]
Quote HistoryQuoted:
you want a concussion grenade aka mini depth charge |
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Posted: 11/30/2018 9:16:41 PM EDT
[#19]
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Posted: 11/30/2018 9:17:29 PM EDT
[#20]
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Posted: 11/30/2018 9:23:38 PM EDT
[#21]
People use M80s to attract sharks when fishing, so I think something bigger than a firecracker is needed.
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Posted: 11/30/2018 9:25:59 PM EDT
[#22]
Quote HistoryQuoted:
Research done as a kid makes me think that an M-80 would do the trick for a shark coming up right next to a boat. |
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Posted: 11/30/2018 9:32:55 PM EDT
[#23]
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Posted: 11/30/2018 9:35:16 PM EDT
[#24]
Couple of Mark 4s duct taped together ought to do 'er pretty good.
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Posted: 11/30/2018 10:04:57 PM EDT
[#25]
Quote HistoryQuoted:
Hmm. Thanks! I can make nitroglycerin a lot easier than TNT. If I encase the diatomaceous earth/nitroglycerin mix inside an impermeable tube such as thin-wall aluminum or polyethylene, do I have to worry about separation and "sweating"? Quote HistoryQuoted:
Quoted:
Research done as a kid makes me think that an M-80 would do the trick for a shark coming up right next to a boat. If you can make nitroglycerin, you may as well make PETN or RDX. Both can be recrystallized from acetone, and both are rock solid stable. No sweating to worry about. They can be weighed easily for reproducibility. |
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Posted: 11/30/2018 10:24:18 PM EDT
[#26]
Quote HistoryQuoted:
Hemingway? |
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Posted: 12/1/2018 8:25:34 PM EDT
[#27]
Quote History |
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Posted: 12/2/2018 1:19:04 AM EDT
[#28]
Quote HistoryQuoted: @Butterfly If you can make nitroglycerin, you may as well make PETN or RDX. Both can be recrystallized from acetone, and both are rock solid stable. No sweating to worry about. They can be weighed easily for reproducibility. It looks like the stuff is used in cosmetics . . . I mean, if I were running a cosmetics shop I might have an excuse, but I'm not. |
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Posted: 12/2/2018 1:26:58 AM EDT
[#29]
Quote HistoryQuoted:
@C-4 How available is pentaerythritol? I can get toluene easily and without much if any eyebrow-raising. It looks like the stuff is used in cosmetics . . . I mean, if I were running a cosmetics shop I might have an excuse, but I'm not. Quote HistoryQuoted:
Quoted: @Butterfly If you can make nitroglycerin, you may as well make PETN or RDX. Both can be recrystallized from acetone, and both are rock solid stable. No sweating to worry about. They can be weighed easily for reproducibility. It looks like the stuff is used in cosmetics . . . I mean, if I were running a cosmetics shop I might have an excuse, but I'm not. It’s all over eBay. https://www.ebay.com/p/100-Gram-AR-Grade-98-Pentaerythrite-Pentaerythritol-C-5-H-12-O-4/1932257502 Can you make white fuming nitric acid? All you do is mix 70% nitric acid with 98%+ sulfuric acid and distill it. Then add a little urea to destroy any nitrogen dioxide that comes over as well. RDX is as easy or even easier than PETN. RDX is also technically more stable as PETN is still a nitrate ester whereas RDX is a true nitro compound. TNT requires oleum. No way to make that easily. You can get to dinitrotoluene but the 3rd nitro group is very difficult to attach. |
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Posted: 12/2/2018 1:30:13 AM EDT
[#30]
"Rescue pit bulls" with swim fins
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Posted: 12/2/2018 1:31:58 AM EDT
[#31]
Quote History |
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Posted: 12/2/2018 1:33:59 AM EDT
[#32]
There’s been zero fatalities ever recorded by a hammer head. Your safe
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Posted: 12/2/2018 1:39:48 AM EDT
[#33]
Quoted:
Ever since seeing the video of the hammerhead shark trying to attack a kayaker, I've been reluctant to get back into salt water. https://www.youtube.com/watch?v=92qzZD99cao How big of a grenade would I need to drive away a shark? Not necessarily kill it -- diffiicult to do since underwater and moving -- but to blast its sensory apparatus so hard that it would decide to seek prey elsewhere? Waterproofed firecracker, pineapple grenade, tsar bomba? Please specify in grams of TNT because uh reasons. This is a big fish:  Attached File |
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Posted: 12/2/2018 1:55:18 AM EDT
[#34]
Quote HistoryQuoted:
You're going to need a bigger boat. http://forgifs.com/gallery/d/203670-1/Boat-grenade-explosion.gif? 
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Posted: 12/2/2018 2:25:15 AM EDT
[#35]
Quote HistoryQuoted:
White phosphorus needs oxygen to burn and is stored under water in which it is insoluble. Quote HistoryQuoted:
Quoted:
White phosphorus is what you seek. |
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Posted: 12/2/2018 2:37:30 AM EDT
[#36]
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Posted: 12/2/2018 2:55:13 AM EDT
[#37]
Quote History |
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Posted: 12/2/2018 2:57:16 AM EDT
[#38]
They make screw on arrowheads that hold .357 rounds. Should be simple to rig a 3 or 4 of them into a bangstick..
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Posted: 12/2/2018 3:29:59 AM EDT
[#39]
I feel like a M80 or 3 would likely suffice to drive it away.
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Posted: 12/2/2018 9:29:50 AM EDT
[#40]
Quote HistoryQuoted:
Why do you have to ruin fantasy posts with...facts? Quote HistoryQuoted:
Quoted:
Quoted:
White phosphorus is what you seek. 
White phosphorus melts at 44 Celsius. If you warm the water up to that temperature and bubble air through the molten mass, it will burn underwater. The whole video is interesting but you can fast forward to 5:20 for the burning under water while oxygen is bubbled through it. [youtube]https://youtu.be/Oke8GinWDG8[/youtube] |
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Posted: 12/2/2018 9:33:27 AM EDT
[#41]
Quote HistoryQuoted: That’s not a big fish. This is a big fish: https://www.AR15.Com/media/mediaFiles/170028/0A5C5C49-62E9-46CA-98FD-03BE22179945_jpeg-758033.JPG Wow. |
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Posted: 12/2/2018 9:45:13 AM EDT
[#42]
Quote HistoryQuoted:
I feel like a M80 or 3 would likely suffice to drive it away. https://nevadafirewerx.files.wordpress.com/2014/05/m80.jpg |
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Posted: 12/2/2018 9:46:15 AM EDT
[#43]
If C-4 or Butterfly were my friends back in High School, I would be dead, missing both arms, or somewhere in Federal Prison now...
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Posted: 12/2/2018 9:51:25 AM EDT
[#44]
See how many videos there are of people swimming with much larger hammerheads that don't do anything and stop being such a wimp. The little guy wasn't even gnawing on the kayak.
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Posted: 12/2/2018 9:53:19 AM EDT
[#45]
Quote HistoryQuoted:
3mm laser beam Quote HistoryQuoted:
Quoted:
Ever since seeing the video of the hammerhead shark trying to attack a kayaker, I've been reluctant to get back into salt water. https://www.youtube.com/watch?v=92qzZD99cao How big of a grenade would I need to drive away a shark? Not necessarily kill it -- diffiicult to do since underwater and moving -- but to blast its sensory apparatus so hard that it would decide to seek prey elsewhere? Waterproofed firecracker, pineapple grenade, tsar bomba? Please specify in grams of TNT because uh reasons. 3mm laser beam 
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Posted: 12/2/2018 9:54:46 AM EDT
[#46]
Quote History |
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Posted: 12/2/2018 10:00:20 AM EDT
[#47]
So you have a kayak for sale?
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Posted: 12/2/2018 10:11:52 AM EDT
[#48]
Quote HistoryQuoted:
If C-4 or Butterfly were my friends back in High School, I would be dead, missing both arms, or somewhere in Federal Prison now... 
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Posted: 12/2/2018 10:22:02 AM EDT
[#49]
Explosives aside, this is exactly why I never enter the food chain without, at a minimum, a .45 and a large knife.
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Posted: 12/2/2018 10:33:05 AM EDT
[#50]
Quote HistoryQuoted:
Yeah. This. Wow. Quote HistoryQuoted:
Quoted: That’s not a big fish. This is a big fish: https://www.AR15.Com/media/mediaFiles/170028/0A5C5C49-62E9-46CA-98FD-03BE22179945_jpeg-758033.JPG Wow. I've been pushed out of the way by one that was at least 30 feet long. |
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