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<blockquote data-quote="Umbran" data-source="post: 6021757" data-attributes="member: 177"><p>Yes, I am aware. </p><p></p><p></p><p></p><p>I don't expect a classic cannon would do well. Classic, "olde tyme" cannons work on gunpowder, which is not a high explosive. It is not enough just to put the two halves together - you could use simple gravity for that, and what you'd get is a short fission reaction that heats up the mass until it melts and breaks into sub-critical parts. Heat, a burst of radiation, but no boom.</p><p></p><p>If you don't mash the two masses together hard enough, and contain them, you don't get an explosion at all. Do it weakly, and your yield is low to non-existent.</p><p></p><p>And yes, they were making cannons before modern welding, sure - using knowledge and techniques built up over centuries, that we don't use now! Casting a cannon is *not* easy, and people who know how do it today are not just lying around.</p><p></p><p>Folks seem to think that if it was done in the past, it can be done immediately in the future. I think you underestimate how much re-invention of the wheel would have to take place. They won't be able to look up "how to make a cannon" on wikipedia you know.</p><p></p><p></p><p></p><p>What, is a Princess Bride quote somehow out of place to note, "we disagree on whether it would be easy"? Sorry. Just trying to inject a little humor.</p></blockquote><p></p>
[QUOTE="Umbran, post: 6021757, member: 177"] Yes, I am aware. I don't expect a classic cannon would do well. Classic, "olde tyme" cannons work on gunpowder, which is not a high explosive. It is not enough just to put the two halves together - you could use simple gravity for that, and what you'd get is a short fission reaction that heats up the mass until it melts and breaks into sub-critical parts. Heat, a burst of radiation, but no boom. If you don't mash the two masses together hard enough, and contain them, you don't get an explosion at all. Do it weakly, and your yield is low to non-existent. And yes, they were making cannons before modern welding, sure - using knowledge and techniques built up over centuries, that we don't use now! Casting a cannon is *not* easy, and people who know how do it today are not just lying around. Folks seem to think that if it was done in the past, it can be done immediately in the future. I think you underestimate how much re-invention of the wheel would have to take place. They won't be able to look up "how to make a cannon" on wikipedia you know. What, is a Princess Bride quote somehow out of place to note, "we disagree on whether it would be easy"? Sorry. Just trying to inject a little humor. [/QUOTE]
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