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Re: [Phys-l] Energy Transfer with hammers



Optimizing the mass with respect to what?
Regards,
Jack

On Mon, 13 Jul 2009, chuck britton wrote:

So you both think that optimizing the mass of hammers and golf clubs
is a futile effort???
Just an effort of the marketing department to increase the bottom line??
Framing carpenters that feel the difference after a days work are
just enjoying the placebo effect?

I'm all for a healthy skepticism but would like to draw the line at
perpetual cynicism.

On Jul 13, 2009, at Jul 13(Mon) 7:01 , LaMontagne, Bob wrote:

Sounds a lot like the claims made in ads for selling golf clubs in
various magazines!

Bob at PC

________________________________________
From: phys-l-bounces@carnot.physics.buffalo.edu [phys-l-
bounces@carnot.physics.buffalo.edu] On Behalf Of Jack Uretsky
[jlu@hep.anl.gov]
Sent: Monday, July 13, 2009 6:49 PM
To: Forum for Physics Educators
Subject: Re: [Phys-l] Energy Transfer with hammers

What makes you think that the statements are correct?
Regards,
Jack


On Mon, 13 Jul 2009, chuck britton wrote:

http://www.finehomebuilding.com//item/8391/titanium-hammers-up-for-
grabs-want-one
has an interesting 'claim' about energy transfer.

"My reason for going with titanium: energy. A titanium hammer
transfers 97% of your energy from swinging the hammer to the nail
head, while a steel hammer transfers only 70% of your energy to the
nail. Titanium drives a nail more efficiently and there?s less recoil
energy to travel back into your arm."

This seems to BEG for some simple 'Mechanics' analysis.
Maybe 'Impedance matching'? admittedly - NOT a topic usually
covered
in intro mechanics but maybe it SHOULD be?
_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
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--
"Trust me. I have a lot of experience at this."
General Custer's unremembered message to his men,
just before leading them into the Little Big Horn
Valley



_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l
_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l

_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l


--
"Trust me. I have a lot of experience at this."
General Custer's unremembered message to his men,
just before leading them into the Little Big Horn Valley