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Post by breesfan on Jan 10, 2016 19:02:11 GMT
Anyone watch?
Thought it was interesting but Adam was funny with that mullet.
I wondered if maybe hypothetically, the show just didn't have a big explosion like they had on the myth.
Hovercraft was okay but I wondered if the vibration of it would have set off landmines that are set off by vibration.
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Post by blazerrose on Jan 10, 2016 22:55:22 GMT
Ah, Adam's mullet, that blended in nearly perfectly with his own hair color LOL.
I fully expected the concrete to do more towards stifling the explosion instead of just directing the force of the explosion upward.
After all of the passes the hovercraft made, and given that the fan motor is located on the top of the device, I don't think the vibration would set off anything. Adam even did donuts on one of his passes and nothing happened.
I have to wonder, though, if Jamie is thinking of some way to utilize this information and make a tank that won't set off roadside bombs.
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Post by the light works on Jan 11, 2016 3:26:54 GMT
Ah, Adam's mullet, that blended in nearly perfectly with his own hair color LOL. I fully expected the concrete to do more towards stifling the explosion instead of just directing the force of the explosion upward. After all of the passes the hovercraft made, and given that the fan motor is located on the top of the device, I don't think the vibration would set off anything. Adam even did donuts on one of his passes and nothing happened. I have to wonder, though, if Jamie is thinking of some way to utilize this information and make a tank that won't set off roadside bombs. (author) David Drake has already done it. hovertanks powered by pocket fusion generators. |
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Post by the light works on Jan 11, 2016 3:35:49 GMT
as for the mail truck explosion - the arrangement of the explosives pretty much set it up so the weak point was above and below.
as for the dislodged detcord - that is also a result.
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Post by ironhold on Jan 11, 2016 3:50:11 GMT
For those who missed it, the episode is available for purchase on iTunes.
You can also get a season pass to pay for all of the episodes at once. You'll receive an e-mail when each episode is ready for download, which is usually a day or two after it first airs in the US.
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Post by ironhold on Jan 11, 2016 3:54:12 GMT
I fully expected the concrete to do more towards stifling the explosion instead of just directing the force of the explosion upward. Personally, I'd be willing to consider "the cement yanked the detonators out" as a valid result, since that's what did indeed happen. I can understand why they'd want to re-test, though. |
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Post by blazerrose on Jan 11, 2016 4:30:19 GMT
Right, and what's to say that the McGyver explosion didn't have the same issue, making it actually a confirmed myth.
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Post by blazerrose on Jan 11, 2016 4:30:59 GMT
(author) David Drake has already done it. hovertanks powered by pocket fusion generators. Wow, that's very cool! |
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Post by the light works on Jan 11, 2016 4:44:41 GMT
(author) David Drake has already done it. hovertanks powered by pocket fusion generators. Wow, that's very cool! If you like military sci fi, he's a pretty good read. |
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Post by ironhold on Jan 11, 2016 5:01:01 GMT
Right, and what's to say that the McGyver explosion didn't have the same issue, making it actually a confirmed myth. Or at the very least quite probable. |
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Post by the light works on Jan 11, 2016 14:32:45 GMT
Right, and what's to say that the McGyver explosion didn't have the same issue, making it actually a confirmed myth. Or at the very least quite probable. after all, nothing in the bombs in the MacGyver's mail truck had any protection at all. |
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Post by The Urban Mythbuster on Jan 11, 2016 15:14:20 GMT
Or at the very least quite probable. after all, nothing in the bombs in the MacGyver's mail truck had any protection at all. The assumption from the clip they showed would be that all the explosives detonated. Did Jamie's wood box effect the explosion? Most likely. The explosives in the clip were inside a cardboard box. 84 pounds of TNT? Where did that number come from? So, from fiction to test, there were some liberties taken that may have altered the results. |
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Post by The Urban Mythbuster on Jan 11, 2016 15:20:06 GMT
Overall, this was a great episode.
Adam: What do you think Mythbusters will actually be remembered for?
Jamie: Blowing crap up.
I thought the hovercraft segment was quite interesting. I wonder about military implications for this...
Though, I think they made another attraction for a Mythbusters survival course: the 'mine' field. Along with the zombie barn and the Indiana Jones run. I don't think escaping from a submerged car would be feasible though...
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Post by the light works on Jan 11, 2016 15:25:27 GMT
after all, nothing in the bombs in the MacGyver's mail truck had any protection at all. The assumption from the clip they showed would be that all the explosives detonated. Did Jamie's wood box effect the explosion? Most likely. The explosives in the clip were inside a cardboard box. 84 pounds of TNT? Where did that number come from? So, from fiction to test, there were some liberties taken that may have altered the results. if I remember the episode correctly, the mail truck was used to smuggle the explosives into the area - and the show had references to how much there was. but in the clip, the explosives, batteries, and timing devices were clearly visible. |
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Post by the light works on Jan 11, 2016 15:30:34 GMT
Overall, this was a great episode. Adam: What do you think Mythbusters will actually be remembered for? Jamie: Blowing crap up. I thought the hovercraft segment was quite interesting. I wonder about military implications for this... Though, I think they made another attraction for a Mythbusters survival course: the 'mine' field. Along with the zombie barn and the Indiana Jones run. I don't think escaping from a submerged car would be feasible though... I know the US already uses hovercraft for landing craft. "Landing Craft, Air Cushion" en.wikipedia.org/wiki/Landing_Craft_Air_Cushionand yes, one of the benefits cited is better potential to avoid mines. |
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Post by WhutScreenName on Jan 11, 2016 19:11:00 GMT
Or at the very least quite probable. after all, nothing in the bombs in the MacGyver's mail truck had any protection at all. When I watched it, that's what I was thinking... that the result was almost identical to what the clip showed. Who's to say that isn't the same thing that happened in the show? I also had issue with the box and felt that probably changed the result as well. In the clip, the explosives where evenly spaced and nothing 'boxing' them in. I do think that would change the results, even with everything exploding as they did in the 2nd attempt. I did like the episode, but found I had a lot more issues with the mail truck 'myth' than I typically do. |
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Post by Cybermortis on Jan 12, 2016 0:46:34 GMT
The assumption from the clip they showed would be that all the explosives detonated. Did Jamie's wood box effect the explosion? Most likely. The explosives in the clip were inside a cardboard box. 84 pounds of TNT? Where did that number come from? So, from fiction to test, there were some liberties taken that may have altered the results. if I remember the episode correctly, the mail truck was used to smuggle the explosives into the area - and the show had references to how much there was. but in the clip, the explosives, batteries, and timing devices were clearly visible. Off the top of my head I think the episode included a line regarding how much damage would have been caused by the explosion, which would have given them an approximate amount they would need. I also think earlier in the episode they may have mentioned they type of explosive used, but its been over a year since I saw this and I don't have my notes handy. |
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Post by Antigone68104 on Jan 12, 2016 1:11:00 GMT
For those who missed it, the episode is available for purchase on iTunes. You can also get a season pass to pay for all of the episodes at once. You'll receive an e-mail when each episode is ready for download, which is usually a day or two after it first airs in the US. If you have problems with iTunes, Amazon is also offering a season pass. (I tried iTunes on the last laptop and could never get it to run.) Getting back to the episode, I wonder if a net anchored to the floor of the truck would have kept the explosives in place? It wouldn't have kept the wires from being dislodged, though. And really, it was busted as soon as they played the MacGyver clip with the explosives sinking and then showed the explosives floating to the surface of the concrete. Given the amount of fun J&A were having with that hovercraft, I don't envy the editors who had to cut that segment down to length  . ("What do you mean, there's another drive full of hovercraft shots?") I would have been happier if they'd worn eye protection when taking the hovercraft over the minefield. I know their math said it was safe, and I know I'm a little edgy about eye safety thanks to my family medical history, but they were driving over a rig that could easily have thrown debris into their faces. |
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Post by tom1b on Jan 14, 2016 17:20:51 GMT
The MacGyver cement mail truck: The first problem is you need to know what the concrete mix was. What aggregate size, what ratio, what type sand... Then you need to know what the slump was. Concrete that will be molded will have a different slump than concrete that needs to be simply poured. Concrete that needs to be pumped is measured on a flow table since it won't hold it's shape in the cone. Concrete that will be used in a molding machine would act differently than concrete that needs to be pumped to the top of the Burj Khalifia. The MacGyver episode didn't show the truck react in any way to the extra weight of all the concrete. That pretty much busted the myth. How do we know the adding of the concrete in the MacGyver episode didn't pull all the detonators out like in the MB "experiment?" Pouring concrete into the truck would be pointless then. All MacGyver had to do was open the back, climb in and pull out all the detonators. Can you drive over a minefield with a hovercraft: They seriously used a personal hovercraft to test the "myth?" They used a 350lb personal hovercraft instead of the 185ton military hovercraft?? The 185ton breaks down to around 55psi if you're interested. I can buy drop in tracks or bolt on tracks for my ~5,000lb truck and I can reduce the ground contact psi to 1psi (and lower). I can grab a snowcat type vehicle and I will be under 0.5psi. If I screw a 12"x12" piece of wood to each of my shoes, I reduce my ground contact to 1.25psi (one foot on the ground while the other is moving). You can also look at trucks with rolligon tires.  . They also sale vehicles with ground contact psi of 3psi and under. But you also have to forget that landmines have actual trip switches and magnetic triggers in addition to pressure switches. |
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Post by WhutScreenName on Jan 14, 2016 18:16:47 GMT
...How do we know the adding of the concrete in the MacGyver episode didn't pull all the detonators out like in the MB "experiment?" Pouring concrete into the truck would be pointless then. All MacGyver had to do was open the back, climb in and pull out all the detonators... Great point, one I hadn't considered. |
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. ("What do you mean, there's another drive full of hovercraft shots?") I would have been happier if they'd worn eye protection when taking the hovercraft over the minefield. I know their math said it was safe, and I know I'm a little edgy about eye safety thanks to my family medical history, but they were driving over a rig that could easily have thrown debris into their faces.