Talk:Hammer
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Need to add something on hammers with moving parts like jack-hammers.
Fixed vandalism Ghost of starman 13:57, 12 September 2006 (UTC)Ghost of starman
Fixed vandalism "yo mama...." AeturnalNarcosis (talk) 20:02, 20 April 2008 (UTC)
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[edit] Hammers are used to perform measurements?
The second sentence in the article is now "Hammers are also used to perform measurements." While this might well be true, it's hardly deserving of mention before other much more common uses of hammers (driving and pulling nails, shaping and bending metals, breaking up concrete, etc., etc.) Perhaps this measurement use could be moved further down in the article. Cheers, Madmagic 07:13, 8 November 2005 (UTC)
- Agreed, but removed it completely as the same argument can be used for any tool. It's hardly noteworthy Graibeard 07:49, 8 November 2005 (UTC)
Hi:
I think it refers to, say, the number of force needed to drive an object much like a torque wrench.
[edit] make me a timeline
make me 1 of the hammer pls
[edit] Images
If you want, I have just uploaded a nice picture of a hammer (public domain) that I took. Hope this helps. Leif902 23:16, 5 March 2007 (UTC)
 A Hammer on a porch (Which was built with it). |
[edit] Basic hammer physics
This makes no sense: "High tech titanium heads are lighter and allow for longer handles, thus increasing velocity and delivering more energy with less arm fatigue than that of a steel head hammer of the same weight."
If the titanium hammer is lighter than the steel one, how can you compare its blows with those of a steel hammer of the same weight? Skyrocket654 03:11, 6 October 2007 (UTC)
By increasing the head's volume - since titanium has a lower density, you will need a larger head to have a head with the same mass as a given steel head.
However, I would like to concur with Skyrocket that the physics entry needs work; for one thing, it is patently false that the physics of swinging a hammer are as simple as kinetic energy in head = muscle force * arc length, as a human arm is a class three lever, meaning that the force at the hammer head may be different than the muscle force. If we let the torso be the fulcrum for simplicity, a human swinging a hammer with an outstretched arm of length "l" and muscle force "f" will have a hammerhead force of fl/h, where h is the handle length. Further, there is more to this than how much energy is stored in the head; as the entry does note, it's very important how far the head travels before stopping, and while I'm no physicist, it seems clear that since momentum is mass times velocity, and stopping something represents a change in momentum where typically you can't change the mass, the more mass the head has, the less velocity (for the same momentum), implying that a high mass head is "easier" to stop - i.e. it should travel less distance before stopping, *increasing* the functional force delivered. Also, recoil is covered under the handle section, but as noted there, the head material matters - apparently steel is 9 times more elastic than titanium, according to the entry - and I would think that belonged under the head section. Lastly, surely the surface area of the hammer matters a lot? The drag on the hammer head will increase with the square of the velocity, so you'll want to put some effort into making the head aerodynamic, and of course pressure matters - there's more to that pin having a wide head than making it easier to hit, you know.
Could someone who knows what they're talking about (i.e. not me) take a look, please? —Preceding unsigned comment added by 71.234.27.153 (talk) 02:49, 28 October 2007 (UTC)
