I've never heard of/seen hollow wooden chopsticks - that took me outside of the story (I've lived in Asia...so I'm not just speaking from a few Chinese takeout experiences.) I've seen plastic, wooden, lacquer, cloisonne, ivory, bone, etc. chopsticks, but all of them are solid (there's some heft/weight to them, even the cheapy split-apart takeout restaurant ones. It's part of how you use chopsticks.) I apologize if this is some cultural thing that I've completely missed, just wanted to mention it.
The sentence with sneak into the pile stuck together...it's probably just me, but the words sneak and stuck close together like that were a challenge - my brain kept wanting to ignore one or the other, or munge them together. I think this is a really important point of your story, so you might want to consider rewording for extreme clarity.
The last sentence is really evocative.
However, that raises my last point, which at this stage in the story I've concluded the story is about a subject that I find distasteful/upsetting, and I personally would not care to read more.
If your story is about more than anorexia (which I have to believe since your headline mentions it's a sci-fi story) you might want to figure out a way to make sure that sci-fi element comes in very quickly on the heels of this. You also already probably know this about some readers (that we're put off by the concept) but I wanted to share it with you in case you did not.
Otherwise, I thought the story opening was solid - a good mixture of sentence lengths, concepts, good wording choices, etc.
Good luck with this piece!
Also agree with that brain-twisting sentence. I think the problem is here:
"allowed another grain to sneak into the pile stuck to another"
The repeated "another" and the alliteration at the beginning both serve to muddle. I think you could get away with just: "A month ago she had gotten careless, allowing one extra grain to sneak into the bowl."
[This message has been edited by alliedfive (edited October 21, 2009).]
2. There's a minor break in POV at the end when you state Minnie's height. At least, I think there is a break in POV. I'm a little murky on the specifics of this stuff, but it stood out to me.
3. I find myself irritated more than intrigued by what's going on here. How can a person eat only twelve grains of rice? How would a single extra grain throw off her metabolism? Minnie is human, I assume, since she's using human eating tools, eating human foods, and is measured in a human scale. The implausibility of all of this makes me more cranky than inquisitive for some reason.
4. Gravity affects all matter equally, regardless of mass.
Prolly not a lot of help to you, sorry about that. This is just my immediate response.
It does sound like she's eating twelve grains of rice per month. Is that what you intended? It's that extreme concept that leads me to believe that the twelve grains are part of the speculative element.
And tchernabyelo, sorry, but I don't see any problem eating a single grain of non-glutinous rice with chopsticks.
This opening does make me curious. I would expect it to go somewhere quite interesting and unexpected.
or
2) she THINKS it messed her up, so it is a psychological thing and this IS anorexia, which appears not to interest everybody.