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December 30th, 2005 - Trickle of Consciousness — LiveJournal
Not a typo, just a warning. My inane meditations on things that matter not a whit continues. Today's topic: bike gears.

I have a bike with two different gear shifts. There's the big shifter that goes from 1 to 3. Those gears are near the pedals. The other shifter, going from 1 to 7, belongs to that mass of toothy circles attached to the back wheel.

What I was wondering today, though, is why don't the two gears correlate into one, big mess of logical resisty progression? I should think it would make sense to go from 1/1 to 1/7, then pop up to 2/1 as the next step, or else flip things so that the progress is more like 1/1, 2/1, 3/1, 1/2 ...

Neither seems to be the case. 2/7 feels mostly like a gear around 3/4 or 3/5, and I'm really not sure why that is. This leads to occasional moments where my feet suddenly pedal against seeming nothingness and I think the chain snapped, or my legs seize up and scream at me for ever expecting they could move the mountainous weight they're unexpectedly faced with. I suspect it's a mildly amusing sight to those on the outside.

Note: please don't explain to me the physics involved so that I might calculate the progression by measuring the diameters of the gears or offer up something that will equally remind me of painful high school math classes and give me flashbacks of MIRAs. It's really not going to happen. But, if there were a cheat sheet, I'd be all about that.

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