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Is gravity affecting YOUR performance?

Captain Ron said:
http://www.americascup.com/en/acmag/letter/index.php?idIndex=0&idContent=2784

So if Paul weighs his rig in Woodland Hills, then drives to the Hammers, he automatically loses a few in the process. Now, if Dave does the same thing in San Diego, well... maybe you'd better strip a few more off than you thought. :D

--ron
Click to expand...
Oh man, I can just see the two of them setting up scales right now and calling each other to compare weights of same items :D :D
 
I think they are referring to the effect of centrifugal force that causes the bulge at the equator. I would be surprised if it amounted to that much. If you think about it at the equator you are going around in a big circle every day. At the pole, you are simply turning around at one spot.
 
They could easily eliminate the difference between different parts of the area by using mass as a standard instead of weight. Mass is the same no matter where on earth or in the universe you are, as opposed to the acceleration of gravity which changes based on distance from the center of the earth(mass).
They should also learn that kilogram is not a measurement of weight.
 
old_man said:
I think they are referring to the effect of centrifugal force that causes the bulge at the equator. I would be surprised if it amounted to that much. If you think about it at the equator you are going around in a big circle every day. At the pole, you are simply turning around at one spot.
Click to expand...
Actually, the bulge at the equator relative to the oceans is more the effect of lower atmospheric pressure in that region. The "atmosphereic engine" is fired here. Constantly rising air at the equator is what causes the lower pressure. Watching the barometer "pump" in the course of dinural variation in the region is pretty amazing, unless of course, you're worried about TRS's, then it can lead to madness.

I'm always amazed at the TV weather regurgitators that say the storm surge associated with TRS's is due to the winds. Couldn't be more wrong. It's all about the relative pressure...

Paul S said:
yes, on a UPS scale.

Paul
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Don't give UPS any ideas. :D

jbeoughe said:
They could easily eliminate the difference between different parts of the area by using mass as a standard instead of weight. Mass is the same no matter where on earth or in the universe you are, as opposed to the acceleration of gravity which changes based on distance from the center of the earth(mass).
They should also learn that kilogram is not a measurement of weight.
Click to expand...
The mass argument has been rehashed a half a dozen times for various "box rules" in the sport. In short, the exact principle you point out is at the very heart of the argument... At sea level, you are at a baseline distance from the center of the earth, practically everywhere the sport is practiced. In light of that, and to allow "wiggle" room for development (hull layup, CF in rigging, etc..), the ISAF has ruled that the weight/mass definition moot. The IACC measurement rule conforms to this by using certain restrictions. Depleted Uranium in the keel bulb is out. :D

--ron
 
old_man said:
...centrifugal force....
Click to expand...

You should know better than that.


:lecture:
lateral acceleration
 
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