Comments on: Somebody in the vicinity of 18th and South Van Ness is building up an arsenal http://www.missionmission.org/2011/07/11/somebody-in-the-vicinity-of-18th-and-south-van-ness-is-building-up-an-arsenal/ Saluting San Francisco's Mission District Mon, 27 Apr 2026 13:23:14 +0000 hourly 1 http://wordpress.org/?v=3.6.1 By: Delegate Nerd http://www.missionmission.org/2011/07/11/somebody-in-the-vicinity-of-18th-and-south-van-ness-is-building-up-an-arsenal/#comment-36208 Delegate Nerd Tue, 12 Jul 2011 20:58:58 +0000 http://www.missionmission.org/?p=29763#comment-36208 Cool thanks, I love free glocks!

]]> By: Genau http://www.missionmission.org/2011/07/11/somebody-in-the-vicinity-of-18th-and-south-van-ness-is-building-up-an-arsenal/#comment-36170 Genau Tue, 12 Jul 2011 16:02:14 +0000 http://www.missionmission.org/?p=29763#comment-36170 Visitacion Valley down by Bayview/Daly City
http://articles.sfgate.com/2009-12-04/bay-area/17182583_1_sandbox-gun-pistol

]]> By: Delegate Nerd http://www.missionmission.org/2011/07/11/somebody-in-the-vicinity-of-18th-and-south-van-ness-is-building-up-an-arsenal/#comment-36165 Delegate Nerd Tue, 12 Jul 2011 07:16:26 +0000 http://www.missionmission.org/?p=29763#comment-36165 Where is “The Viz?”

]]> By: Genau http://www.missionmission.org/2011/07/11/somebody-in-the-vicinity-of-18th-and-south-van-ness-is-building-up-an-arsenal/#comment-36161 Genau Tue, 12 Jul 2011 05:58:50 +0000 http://www.missionmission.org/?p=29763#comment-36161 Fuck that…they got free Glocks in sandboxes in the Viz…

]]> By: Stephan Zielinski http://www.missionmission.org/2011/07/11/somebody-in-the-vicinity-of-18th-and-south-van-ness-is-building-up-an-arsenal/#comment-36156 Stephan Zielinski Tue, 12 Jul 2011 04:24:07 +0000 http://www.missionmission.org/?p=29763#comment-36156 Force-per-contact-area could indeed be a useful thing to compute when trying to figure out what’s going to happen when projectile P impacts target T, but it’s going to vary a lot depending on the nature of T– higher for a hard bit like the forehead, and lower for a soft bit like the thigh.

If nothing else, the total energy involved puts an upper limit on how much total rearrangement of bits-o’-the-target can take place.

]]> By: Herr Doktor Professor Deth Vegetable http://www.missionmission.org/2011/07/11/somebody-in-the-vicinity-of-18th-and-south-van-ness-is-building-up-an-arsenal/#comment-36143 Herr Doktor Professor Deth Vegetable Tue, 12 Jul 2011 00:06:55 +0000 http://www.missionmission.org/?p=29763#comment-36143 That’s true, but for that same reason it seems like the energy-required-to-propel-mass-of-projectile is not as useful a metric as, say, force-per-contact-area of projectile when it comes to determining the danger said projectile presents.

Just to be clear, I’m not arguing that pellet guns should or should not be legal. I’m just thinking about the physics.

]]> By: Stephan Zielinski http://www.missionmission.org/2011/07/11/somebody-in-the-vicinity-of-18th-and-south-van-ness-is-building-up-an-arsenal/#comment-36138 Stephan Zielinski Mon, 11 Jul 2011 23:57:51 +0000 http://www.missionmission.org/?p=29763#comment-36138 True, of course; and that concentration of energy in a smaller surface area also means that a .22 LR bullet is not merely 3.8 times as dangerous as a baseball… Still, for our purposes, the numbers serve to illustrate that we’re talking about a distinct lack of oomph, here.

]]> By: Herr Doktor Professor Deth Vegetable http://www.missionmission.org/2011/07/11/somebody-in-the-vicinity-of-18th-and-south-van-ness-is-building-up-an-arsenal/#comment-36137 Herr Doktor Professor Deth Vegetable Mon, 11 Jul 2011 23:36:45 +0000 http://www.missionmission.org/?p=29763#comment-36137 But the surface area of a baseball is a hell of a lot bigger than the surface area of a pellet, so that energy is much more spread out. No?

]]> By: Stephan Zielinski http://www.missionmission.org/2011/07/11/somebody-in-the-vicinity-of-18th-and-south-van-ness-is-building-up-an-arsenal/#comment-36132 Stephan Zielinski Mon, 11 Jul 2011 22:23:10 +0000 http://www.missionmission.org/?p=29763#comment-36132 The Crosman 764SB is an air rifle, $45.61 at Amazon, capable of firing a pellet at about 600 feet per second. Assuming an eight grain pellet, muzzle energy is about 8.7 joules. For comparison, a lightly-loaded low-velocity .22 LR cartridge fired from a Saturday Night Special means a bullet with about 141 joules. For that matter, a baseball hurled at fifty miles an hour clocks in at 37 joules.

You wouldn’t want to get hit in the eye with it, but you wouldn’t want to get hit in the eye with an enraged ladybug, either.

]]> By: Glenparker http://www.missionmission.org/2011/07/11/somebody-in-the-vicinity-of-18th-and-south-van-ness-is-building-up-an-arsenal/#comment-36131 Glenparker Mon, 11 Jul 2011 22:18:59 +0000 http://www.missionmission.org/?p=29763#comment-36131 Tis illegal to have a BB gun in SF even with the excuse of just plinking hipsters in the ass with one.

]]> By: Delegate Nerd http://www.missionmission.org/2011/07/11/somebody-in-the-vicinity-of-18th-and-south-van-ness-is-building-up-an-arsenal/#comment-36127 Delegate Nerd Mon, 11 Jul 2011 21:52:25 +0000 http://www.missionmission.org/?p=29763#comment-36127 http://www.viceland.com/int/v12n7/htdocs/rat.php

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