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Post by the light works on Feb 23, 2014 14:21:19 GMT
wow, what a host of great myths to critique.
in the barrel bend - I found myself wishing that instead of a sword forge, Adam had bought a pipe bender - since none of the cartoons ever show the character heating the barrel to bend it. I am guessing the result would probably be the same, but there is the off chance that bad things would have happened to the barrel in the bending process.
Bullet vs tape measure: I immediately scoffed at this one, because I have never seen a contractor stuff a full size tape measure in a shirt pocket. but when I consider further - the tape measure rolls up a spring steel blade into a tight coil inside the case. that results in a (depending on the model of tape measure) 3/4"-5/4" thick roll of spring steel in a band around the core. this should certainly be enough to fragment and stop a standard slug. it may be only that the .40 caliber slug hit dead center - missing the tape, itself, that it went through.
bullet vs wallet: would it have killed them to have Tom Hanks introduce this one? "he was shot in the but-tocks" but yeah - unless you are carrying a phone book in your back pocket... or, as we have mentioned in other threads - the bullet has already lost most of its energy.
Shotgun spear: a variation I would like to see at sometime in the future sockets the shell in the side of a club, with a proper metallic firing pin. perhaps that will give enough direction to the shot, or perhaps it will simply blow up the socket. and Ipe is not quite as hard to work as it was presented - it can be cut and sanded with standard woodworking tools - it is just SLOW.
Gun in a vacuum: I was very disappointed in Adam for being so skeptical. at the same time, it occurred to me that with the bullet sealed in the shell, there is a small chance that the vacuum could have unseated the bullet - causing issues. also, new cool sound for the library.
deep fried pistol: gun in 350 degree oven = gun in 375 degree oil? makes perfect sense to me.
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Post by jedimaster on Feb 23, 2014 16:32:03 GMT
Look up "Bang Stick", Basically it is a twelve gauge shotgun shell on a spear used to kill sharks from what I have read.
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Post by the light works on Feb 23, 2014 16:46:25 GMT
Look up "Bang Stick", Basically it is a twelve gauge shotgun shell on a spear used to kill sharks from what I have read. yes, that is what I read, too - about 30 years ago, without a whole lot of detail into how it worked.
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Post by jedimaster on Feb 23, 2014 19:18:23 GMT
Well according to Wikipedia: en.wikipedia.org/wiki/PowerheadDesign[edit] A powerhead consists of a long length of tubing which is the chamber for the cartridge, a firing pin to fire the cartridge, and usually some form of safety pin or latch that prevents firing when it is engaged. The rear of the power head is fitted with some provision for attaching to a spear.[1] Powerheads are available that chamber a variety of handgun, rifle, and shotgun cartridges, from .22 WMR to 12 gauge and larger. .357 Magnum is probably the most common, as it is fairly powerful yet still compact enough to be used in a spear gun. Large cartridges such as the 12 gauge are generally only used on a handheld spear.[1] Some powerheads use the cartridge to propel a barbed spear point into the target. These are generally used on a bangstick for alligator hunting, to secure a line to the alligator to prevent escape.[2][4] Purpose of contact-shooting[edit] Bullets are generally designed to work in air, which has a very low density. The density of water is roughly 800 times higher than that of air at sea level, and that reduces the penetration of a bullet proportionally. A bullet might travel a mile (1.6 km) in air, but travel no more than a few feet (about a meter) in water. Expanding hunting or defensive ammunition, such as that using hollow point bullets, will penetrate even less, as the water is dense enough to cause the bullet to expand. By firing while in contact with the target, a powerhead does not waste energy on traveling through the water, but rather expends all its energy directly on the target.[1] How they work[edit] Although most commercial powerheads use standard handgun ammunition, such as .357 Magnum or .44 Magnum, the bullet has little or no effect on the killing power of the bang stick.[citation needed] The muzzle blast does the damage, as much high-pressure gas is forced into the flesh of the target. Blank cartridges can produce fatal wounds when fired in or near contact, and they work well in powerheads. One commercially produced version used a modified .30-30 Winchester cartridge case, loaded backwards, with a primed .38 Special case loaded in its mouth holding the primer. The cartridge was loaded with the .30-30 case facing outwards, so that the .30-30 case full of burning powder was propelled into the target upon firing.[1][5] Ammunition issues[edit] Since most powerheads are designed to use commercial ammunition, which is not designed to be used underwater, the ammunition used must be waterproofed. A coating of nail polish or varnish is commonly used around the primer and case mouth. For shotshells, a layer of rubber, such as a balloon, can be used to seal the crimped front of the shell.[1][2] Legal issues[edit] A powerhead may be considered a firearm under some circumstances. In the US, the BATFE considers a powerhead a firearm if it is not permanently affixed to a shaft; generally powerheads are sold spot welded to a temporary steel shaft giving an overall length of greater than 18 inches (45 cm). After installing permanently on a spear shaft, the spot weld is cut, and the temporary shaft discarded.[3] Revenue Ruling 55-569, C.B. 1955-2, 483 says: A device ostensibly designed for submarine spear fishing, but capable of chambering and firing .22 caliber rimfire ammunition, is a firearm within the purview of the National Firearms Act. However, such device, if permanently attached to the speargun shaft by the manufacturer, would not be a firearm. Note that this ruling is with regard to the National Firearms Act, and not to the 1968 Gun Control Act. (The National Firearms Act defines 'firearm' as machine guns, short barreled rifles, short barreled shotguns, and concealable firearms that are neither pistols nor revolvers.) This means that powerheads may still be under the authority of the 1968 Gun Control Act with regards to shipping them and purchase of them from licensed dealers.[3] Laws may also prohibit the use of powerheads in sport fishing. They are allowed in US federally controlled waters, but many states prohibit their use in state controlled waters. Do note that laws regarding hunting and firearms vary widely among individual states, and one can be easily in violation of state law despite being compliant with federal regulations. References[edit] ^ Jump up to: a b c d e f "FreeDiveList FAQ". Archived from the original on 2007-12-15. ^ Jump up to: a b c "Beco Inner Space Products On-Line Catalog". ^ Jump up to: a b c "Revenue Ruling 55-569, C.B. 1955-2, 483.".[dead link] Jump up ^ "Alligator Hunting".[dead link] Jump up ^ US patent 4058062, Rhett McNair, "Powerhead cartridge", issued 1977-3-21 External links[edit] Wally Gibbins with an eleven foot tiger shark and 10 gauge shotgun powerhead in 1963. Powerhead detonation on a shark. Ask and ye shall receive.
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Post by The Urban Mythbuster on Feb 24, 2014 15:29:58 GMT
Bent Barrel: I was slightly surprised by the results; though, I did figure it would work, thinking back to a few seasons ago when they shot a bullet around a room (inside a pipe). And, yes, see the bullet emerge from the 180deg barrel did elicit a giggle and the collection of bent barrels would make fantastic wall art! What is Bulletproof? (Part VI): Was the carnival necessary? Or, was this simply to make it more entertaining because they knew true fans would groan at the thought of another round of this testing? But, this time, they did not give the bulletproof v. bullet resistant discussion. Wasn't expecting the wallet to protect much... Shotgun Spear: I didn't expect it to work when they were using just sticks. Gun in a Vacuum: This was cool. The exhaust burnout & sound were worth the price of admission! Deep Fried Gun: Yep. A gun heated to a specific temperature will give the same result regardless of how it gets to that temperature (i.e., oven or deep frying). This late in the season, I have one question: ARE WE OR AREN'T WE GOING TO SEE ICE CANNON? ?
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Post by the light works on Feb 24, 2014 15:35:21 GMT
Bent Barrel: I was slightly surprised by the results; though, I did figure it would work, thinking back to a few seasons ago when they shot a bullet around a room (inside a pipe). And, yes, see the bullet emerge from the 180deg barrel did elicit a giggle and the collection of bent barrels would make fantastic wall art! What is Bulletproof? (Part VI): Was the carnival necessary? Or, was this simply to make it more entertaining because they knew true fans would groan at the thought of another round of this testing? But, this time, they did not give the bulletproof v. bullet resistant discussion. Wasn't expecting the wallet to protect much... Shotgun Spear: I didn't expect it to work when they were using just sticks. Gun in a Vacuum: This was cool. The exhaust burnout & sound were worth the price of admission! Deep Fried Gun: Yep. A gun heated to a specific temperature will give the same result regardless of how it gets to that temperature (i.e., oven or deep frying). This late in the season, I have one question: ARE WE OR AREN'T WE GOING TO SEE ICE CANNON? ? can microwave gun be far behind?
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Post by The Urban Mythbuster on Feb 24, 2014 15:41:47 GMT
can microwave gun be far behind? Best of both worlds: 1) Heating a gun. 2) Putting metal in the microwave.
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Post by the light works on Feb 24, 2014 15:46:47 GMT
can microwave gun be far behind? Best of both worlds: 1) Heating a gun. 2) Putting metal in the microwave. It's a twofer. added bonus - will the discharge or the heat fire it off?
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Post by The Urban Mythbuster on Feb 24, 2014 15:51:27 GMT
It's a twofer. added bonus - will the discharge or the heat fire it off? Will the outer case of the microwave be able to contain the blast? Or, will M5 be littered with hundreds of pieces? Will Adam be asking "Am I missing as eyebrow?" as a result?!
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Post by Cybermortis on Feb 24, 2014 16:21:31 GMT
This late in the season, I have one question: ARE WE OR AREN'T WE GOING TO SEE ICE CANNON? ? It is on next weeks show (1st March). This will also be the last in the current run of episodes.
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Post by The Urban Mythbuster on Feb 24, 2014 16:35:35 GMT
This late in the season, I have one question: ARE WE OR AREN'T WE GOING TO SEE ICE CANNON? ? It is on next weeks show (1st March). This will also be the last in the current run of episodes. Fantastic! I wonder how many of our questions it will answer: How was it made? How was it maintained? How rigid of a structure was it? What effect did the heat of the explosion have on the inside of the barrel? etc.
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Post by Cybermortis on Feb 24, 2014 16:50:03 GMT
I think you mean how many points we raised they will/did address and how many (if any) ideas they took from the thread here. Of course the idea was also posted on Discovery boards at one point, but the discussions were more or less identical in many respects.
Besides which, I *think* they actually picked the idea up from here rather than from Discovery. Which is why I moved the thread to Elysium.
The teaser for this season did include a very brief glimpse of what was clearly an ice cannon exploding near the breach (I noted back when the teaser came out that it seemed that they'd tested ice cannon. This was before it was confirmed that the idea had been tested.) Not that this means that they didn't get an ice cannon to work, as I noted both in that thread and certainly in the glass cannon thread MB were going to test the cannons to destruction, even if that involved loading it with high explosives.
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Post by the light works on Feb 24, 2014 17:12:25 GMT
I think you mean how many points we raised they will/did address and how many (if any) ideas they took from the thread here. Of course the idea was also posted on Discovery boards at one point, but the discussions were more or less identical in many respects. Besides which, I *think* they actually picked the idea up from here rather than from Discovery. Which is why I moved the thread to Elysium. The teaser for this season did include a very brief glimpse of what was clearly an ice cannon exploding near the breach (I noted back when the teaser came out that it seemed that they'd tested ice cannon. This was before it was confirmed that the idea had been tested.) Not that this means that they didn't get an ice cannon to work, as I noted both in that thread and certainly in the glass cannon thread MB were going to test the cannons to destruction, even if that involved loading it with high explosives. might it be a good idea to consider a "thread comparison" subtopic in the episode reviews section for things like the star wars special, for us to read threads related to episodes and pat ourselves on the back for coming up with ideas they might have used? (just food for thought - I don't know if it is truly a good idea or not)
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Post by Cybermortis on Feb 24, 2014 17:50:35 GMT
When ideas posted on TC make it on the show the thread in question is moved to the Elysium section of the board. This can be found directly under the show ideas forum.
Only Staff members can post in that section, but everyone can read the threads there to compare what was posted with what was tested on the show.
At the moment I think comparisons between posted and aired ideas are best left in this section, as part of the general discussion about the episode in question. This is because it is not always clear exactly where an idea came from. For example it isn't clear if Ice Cannon came to their attention via Discovery Boards, from TC, from one of their researchers or just from some random email.
That and because the only episode to date that I strongly suspect came almost exclusively from TC was the Star Wars Special. (I suspect this because I was told that our help had been invaluable.)
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Post by the light works on Feb 24, 2014 18:22:29 GMT
When ideas posted on TC make it on the show the thread in question is moved to the Elysium section of the board. This can be found directly under the show ideas forum. Only Staff members can post in that section, but everyone can read the threads there to compare what was posted with what was tested on the show. At the moment I think comparisons between posted and aired ideas are best left in this section, as part of the general discussion about the episode in question. This is because it is not always clear exactly where an idea came from. For example it isn't clear if Ice Cannon came to their attention via Discovery Boards, from TC, from one of their researchers or just from some random email. That and because the only episode to date that I strongly suspect came almost exclusively from TC was the Star Wars Special. (I suspect this because I was told that our help had been invaluable.) so elysium is good ideas that were seen on the show, the graveyard is good ideas that weren't seen on the show (yet) and the other place is bad ideas?
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Post by Cybermortis on Feb 24, 2014 18:32:49 GMT
Elysium is for notable threads, and while that includes ideas that made it onto the show it does include several others that I wanted to highlight, such as the 'Questions for...' threads. Basically its a hall of fame, and a way to thank members for contributing to the board.
The Graveyard is where old threads are sent in an effort to clean up various sections of the board. Basically this is a general archive, with the sub-section 'Limbo' being a place where Moderators can send posts or threads while we decide if we should take any action on them. Consider Limbo to be a holding area until something is sent elsewhere or deleted.
Tartarus, and its section 'The Deepest Pit' is for if/when I feel the need to REALLY tell people off. Basically its a hall of shame (and thankfully one that is empty as I've not felt the need to do that to anyone).
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Post by the light works on Feb 24, 2014 18:48:46 GMT
Elysium is for notable threads, and while that includes ideas that made it onto the show it does include several others that I wanted to highlight, such as the 'Questions for...' threads. Basically its a hall of fame, and a way to thank members for contributing to the board. The Graveyard is where old threads are sent in an effort to clean up various sections of the board. Basically this is a general archive, with the sub-section 'Limbo' being a place where Moderators can send posts or threads while we decide if we should take any action on them. Consider Limbo to be a holding area until something is sent elsewhere or deleted. Tartarus, and its section 'The Deepest Pit' is for if/when I feel the need to REALLY tell people off. Basically its a hall of shame (and thankfully one that is empty as I've not felt the need to do that to anyone). makes sense. </tangent>
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Post by Antigone68104 on Feb 26, 2014 17:32:17 GMT
Deep-fried Gun, I wish they'd gone into how long it took the gun to fire. From their description of the base scenario, it sounded like gun into fryer = immediate boom, and they clearly didn't get that.
What is Bulletproof, I suspect the carnival might have made it harder to get consistent shots. It looked to me like the final shot drilled through the center of the measuring tape coil, and the others hit the coil thus hitting more metal. I don't think you can really compare those shots to each other.
Bent Barrel, I'd seen photos of the WWII rifles so I knew they were good up to 90 degrees. The 180 was a surprise, though.
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Post by tom1b on Feb 26, 2014 18:49:23 GMT
Deep fried: His comment that he expected it to cook off in 10-15 seconds is the sign that this is not science show. Heat won't transfer that fast, especially that low. Throw a cast iron skillet in a 350°F oven for 10-15 seconds and you can still pull it out bare handed. A candle flame is about 1800°F. Smokeless powder has an autoignition temperature range of 320°F - 360°F. They blew in a 350°F fryer after 3-ish minutes and it cooked off at 344°F when it was heated to temp. The Grey bang stick: real "bang sticks" have a chamber/barrel. A cartridge or a shell at the end of anything is useless. Even if the round is set off, the explosion occurs radially...just like bullets in the fire, in the pan, in the fuse panel. The casing can cause more damage than the round. A weapon's barrel/chamber directs the energy towards the target. Bulletproof: Don't really care for these because they never look at why these things were bulletproof. A weave did stop a round, a bra strap did stop a round and just recently a pocket bible stopped 2 "small caliber" rounds. abcnews.go.com/US/wireStory/police-ohio-drivers-bible-booklet-stops-bullet-22663958"Police said in their report that two small-caliber bullets hit the booklet called "The Message," which has Bible verses in contemporary language and were found lodged inside the book." Gun in vacuum: Salyut 3 was equipped with a cannon. It was fired to destabilize its orbit to hasten its re-entry (life support was off). How many rounds were fired is disputed, but fired it was. And the only way to aim that cannon was to turn the station.
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Post by the light works on Feb 27, 2014 3:41:36 GMT
however, hot oil transfers heat faster than hot air. you can hold your hand in a 350 degree oven for longer than you can hold it in 350 degree oil. still, we know that Adam and Jamie are not physicists - so they do guess wrong on occasion.
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