Question for people
Nov. 16th, 2004 09:51 am![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
danceboyIs thermal mass equal to mass times a (units changing) constant? I.E. is the thermal mass of one 12 kg object equal to that of every other 12 kg object? I've asked a few people who I thought would know (chemical, civil, and mechanical engineers. No, I haven't been able to find a materials scientist.), and all of them said roughly "I think so. I mean, it sounds likely...."
Mind you I've forgotten why I cared in the first place, but care I do.
While we're on the subject of asking random questions; I don't understand what's going on with titanium in hammers and other impact tools (e.g. golf clubs).
I'm guessing that it's just marketing, but they're claiming that a similar sized Ti head will hit harder and be less work to swing. I believe that second part. I even believe that due to KE = 1/2mv^2 a titanium head will have more KE, but I think that inertia is the important thing here (by extrapolation to a dowel with a band of steel wrapped around the end to prevent splitting).
I can also see an advantage to a hammer that doesn't rust, and that doesn't get dinged up if you toss it into your tool box. Further, I think that giving Russia money right now is not a bad thing. I just don't really see a direct advantage for the hand holding the hammer.
Ideas? Comments?
Mind you I've forgotten why I cared in the first place, but care I do.
While we're on the subject of asking random questions; I don't understand what's going on with titanium in hammers and other impact tools (e.g. golf clubs).
I'm guessing that it's just marketing, but they're claiming that a similar sized Ti head will hit harder and be less work to swing. I believe that second part. I even believe that due to KE = 1/2mv^2 a titanium head will have more KE, but I think that inertia is the important thing here (by extrapolation to a dowel with a band of steel wrapped around the end to prevent splitting).
I can also see an advantage to a hammer that doesn't rust, and that doesn't get dinged up if you toss it into your tool box. Further, I think that giving Russia money right now is not a bad thing. I just don't really see a direct advantage for the hand holding the hammer.
Ideas? Comments?
Re: some answers
Date: 2005-02-24 01:42 pm (UTC)Yes... (any excuse to haul out the CRC :-)
This is why you can quench red-hot steel in a small amount of water
Well, the thing about quenching steel in water is not just the heat capacity of the water, but also the fact that after you heat the water from room temperature (20 degrees C) to 100 degrees C, the water will boil, which accounts for a significant amount of energy transfer.