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Wednesday, November 23, 2016

Kant Measure Weight in Grams: the Ultimate Truth of the Moon Pie

     Sometimes I think I should place a disclaimer proclaiming: "Contents may unsettle."  This will not be one of those situations as I expound upon the pound (the unit of measure not the place for abandoned animals, that would be unsettling).
     In order to appease their devotees, manufacturers of certain snack foods reassure that "contents may settle; product is packaged by weight not volume."  It promises twelve ounces but the bag of mostly air leaves us feeling somewhat empty.  Perhaps such things should be packaged by density to consider both mass and volume?
     Let's take a Moon Pie to the moon.  Upon consulting Moon Pie's nutrition facts I find it "weighs" 57 grams.  The more correct way to put this is a Moon Pie has a mass of 57 grams since weight is gravity dependent.  Accounting for the difference in gravity, the Moon Pie is virtually weightless on the moon.  You can calculate it manually or use a conversion calculator for different planets.
     My point to all of this is if you are buying snack foods by weight on different planets the quality of the deal you are getting will vary based on gravitational fields.
     No, actually that is not my point, it is merely an extended introduction to an analogy and I don't eat Moon Pies on this planet or any others. 
     Mass, though useful in scientific formulae, doesn't have direct meaning for us as inhabitants of Earth and therefore subject to its gravity of 9.82 newtons.  Newton brings to mind powdered wigs and frilly things like how Immanuel Kant is dressed here for his portrait.
     The Moon Pie's mass of 57 grams is unchanging amidst its interstellar wanderings and is sort of like the "thing in itself," independent of gravity or our perceptions.  We can't really know the ultimate truth of the Moon Pie (Kant would say noumena because the Moon Pie hadn't been invented yet) because of our limitations; we can only experience it subject to our sensory perception which includes the gravity on our planet.  To know the ultimate truth of the Moon Pie would be to know the ultimate truth of reality itself which thanks to Newton's not-so-frilly successors in the world of physics may be much less of an "ultimate truth" than originally described by both scientists and philosophers.       

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