Skip to main content

View Diary: Sandy Hook families speak out on their loss ... and guns (335 comments)

Comment Preferences

  •  No... (3+ / 0-)

    see my comment above, and read some more at your link. You forgot to account for the variations in the mass of the bullets. Most handgun ammunition uses much heavier bullets than the AR-15 uses.The AR-15 produces about 3 times the kinetic energy of a 9mm handgun such as that used by Jared Loughner, or the police. Energy, expressed in ft/lbs, not velocity, is the measure of a bullet's force.

    "A lie is not the other side of a story; it's just a lie."

    by happy camper on Thu Mar 28, 2013 at 12:23:50 PM PDT

    [ Parent ]

    •  asdf (1+ / 0-)
      Recommended by:
      PavePusher

      Well, to be fair, kinetic energy is not force.  You can get the force easily enough by taking the derivative with respect to the distance acted.  To get the pressure, also divide by the area of the impacted cross section.  

      When God gives you lemons, you find a new god.

      by Patrick Costighan on Thu Mar 28, 2013 at 01:45:41 PM PDT

      [ Parent ]

    •  Try again, happy camper (2+ / 0-)
      Recommended by:
      Silvia Nightshade, Beetwasher

      I'm sure you can do basic math.

      It's all there in my comment, the one you misunderstood. I won't hold it against you, if you need time to study it.

      Kinetic energy only scales linearly with mass.

      A bullet with 2x mass, will emerge with 2x kinetic energy IFF the muzzle velocity is the same.

      "They did not succeed in taking away our voice" - Angelique Kidjo - Opening the Lightning In a Bottle concert at Radio City Music Hall in New York City - 2003

      by LilithGardener on Thu Mar 28, 2013 at 04:19:21 PM PDT

      [ Parent ]

    •  But if you want to explicitly define the (3+ / 0-)
      Recommended by:
      Silvia Nightshade, Avila, Beetwasher

      variables for whichever combo you want to compare, I'll be kind and double check your math for you.

      Please do provide links. It would only be fair.

      "They did not succeed in taking away our voice" - Angelique Kidjo - Opening the Lightning In a Bottle concert at Radio City Music Hall in New York City - 2003

      by LilithGardener on Thu Mar 28, 2013 at 04:21:15 PM PDT

      [ Parent ]

Subscribe or Donate to support Daily Kos.

Click here for the mobile view of the site