# I pit people who refuse to learn from history **URL:** \ **Category:** The BBQ Pit\ **Created:** [May 9, 2013, 4:44pm UTC](https://boards.straightdope.com/t/i-pit-people-who-refuse-to-learn-from-history/657903 "2013-05-09T16:44:10Z")\ **Posts on this page:** 8\ **Page:** 2
**Author:** ![TriPolar](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tripolar/32/3008_2.png) [@TriPolar](https://boards.straightdope.com/u/TriPolar)\ **Post date:** [May 10, 2013, 1:24pm UTC](https://boards.straightdope.com/t/i-pit-people-who-refuse-to-learn-from-history/657903/21 "2013-05-10T13:24:36Z")
> [@Chimera](#): > > Hardly matters for such a weapon. Not like they’re going to be prized for their accuracy. It makes a difference to distinquish the printed gun from a zip gun. And I’m interested if this actually worked because I can’t see the plastics used in printers making effective rifling. If they are rifled, and the rifling works, the guns are quite a bit different from a zip gun. I doubt they are rifled because I think the first shot would destroy the rifling, and if it doesn’t jam and blow on the first bullet it certainly would on the second. But I’d like to know before I argue that the plastic barrel is a stupid idea because the barrel could be made out of a piece of steel pipe and not be destroyed by firing the gun. ---
**Author:** ![redtail23](https://avatars.discourse-cdn.com/v4/letter/r/3e96dc/32.png) [@redtail23](https://boards.straightdope.com/u/redtail23)\ **Post date:** [May 10, 2013, 1:55pm UTC](https://boards.straightdope.com/t/i-pit-people-who-refuse-to-learn-from-history/657903/22 "2013-05-10T13:55:12Z")
> [@njtt](#): > > It is illegal to use a printing press or a photocopier to make banknotes. The relevant laws are fairly successful in curbing such activity, are no more difficult to enforce than most other laws, and do not seem to have in any way constrained the use, advancement, and spread of printing and copier technology. No, actually, such laws are really spectacularly unsuccessful, in and of themselves. I take it that you’re unfamiliar with all of the [methods](https://en.wikipedia.org/wiki/Counterfeit_money#Anti-counterfeiting_measures) used to try to prevent counterfeiting of money? ---
**Author:** ![Duke\_of\_Rat](https://avatars.discourse-cdn.com/v4/letter/d/ad7895/32.png) [@Duke\_of\_Rat](https://boards.straightdope.com/u/Duke_of_Rat)\ **Post date:** [May 10, 2013, 2:03pm UTC](https://boards.straightdope.com/t/i-pit-people-who-refuse-to-learn-from-history/657903/23 "2013-05-10T14:03:28Z")
> [@Derleth](#): > > Yes. Other than the fact the information has now been replicated over a hundred thousand times that we know of, the information no longer exists anywhere in the world. Done and dusted. Score another one for the DoD. I was attempting a bit of ironic humor, that’s why I mentioned the 100K downloads and the DoD shutting it down as a done deal. Of course the genie is out of the bottle, DoD or not. ---
**Author:** ![Projammer](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/projammer/32/559_2.png) [@Projammer](https://boards.straightdope.com/u/Projammer)\ **Post date:** [May 11, 2013, 4:39am UTC](https://boards.straightdope.com/t/i-pit-people-who-refuse-to-learn-from-history/657903/24 "2013-05-11T04:39:44Z")
> [@TriPolar](#): > > Anybody know if the plastic gun barrel was rifled? According to [this](http://www.extremetech.com/extreme/155084-the-liberator-the-first-downloadable-3d-printed-gun-gets-test-fired) article, it is not. I couldn’t find the original article I read addressing this issue where they noted that the original Liberator didn’t have a rifled barrel either. The linked site also has an embedded video of the printed Liberator being fired if anyone is interested. ---
**Author:** ![TriPolar](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tripolar/32/3008_2.png) [@TriPolar](https://boards.straightdope.com/u/TriPolar)\ **Post date:** [May 11, 2013, 4:44am UTC](https://boards.straightdope.com/t/i-pit-people-who-refuse-to-learn-from-history/657903/25 "2013-05-11T04:44:41Z")
> [@Projammer](#): > > According to [this](http://www.extremetech.com/extreme/155084-the-liberator-the-first-downloadable-3d-printed-gun-gets-test-fired) article, it is not. > > I couldn’t find the original article I read addressing this issue where they noted that the original Liberator didn’t have a rifled barrel either. > > The linked site also has an embedded video of the printed Liberator being fired if anyone is interested. Well then I’ll say it. This gun is incredibly stupid. You could do better with parts straight off the hardware store shelf. ---
**Author:** ![Jamicat](https://avatars.discourse-cdn.com/v4/letter/j/c67d28/32.png) [@Jamicat](https://boards.straightdope.com/u/Jamicat)\ **Post date:** [May 12, 2013, 12:48am UTC](https://boards.straightdope.com/t/i-pit-people-who-refuse-to-learn-from-history/657903/26 "2013-05-12T00:48:35Z")
Slippery slope people, WAKE UP… At first it’s weapons and then… They will ban the 3d printing of pigeon eggs…☹ ---
**Author:** ![Ethilrist](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/ethilrist/32/4604_2.png) [@Ethilrist](https://boards.straightdope.com/u/Ethilrist)\ **Post date:** [May 12, 2013, 12:55am UTC](https://boards.straightdope.com/t/i-pit-people-who-refuse-to-learn-from-history/657903/27 "2013-05-12T00:55:34Z")
People who refuse to learn from history will have to take it again in the summer session, credit/no credit. ---
**Author:** ![Civil\_Guy](https://avatars.discourse-cdn.com/v4/letter/c/d78d45/32.png) [@Civil\_Guy](https://boards.straightdope.com/u/Civil_Guy)\ **Post date:** [May 12, 2013, 1:25am UTC](https://boards.straightdope.com/t/i-pit-people-who-refuse-to-learn-from-history/657903/28 "2013-05-12T01:25:16Z")
I believe another version goes - maybe by Mark Twain: “History doesn’t repeat itself, but it does harmonize.” I like it better than the original. [Previous page](https://boards.straightdope.com/t/i-pit-people-who-refuse-to-learn-from-history/657903.md?page=1)