Thermodynamics & Wizarding/vanishing calories/Heinlein

[Susan McGee]

No: HPFGUIDX 7360

--- In HPforGrownups at egroups.com, heidi <heidi.h.tandy.c92 at a...> 
wrote:
> 
> 
> Amanda Lewanski wrote:
> 
> > And lastly, permanence. Leprechaun gold is, to all appearances, 
real, but
> > transitory. I would postulate that the squashy purple sleeping 
bags were
> > similar, non-permanent exigency measures. However, food *cannot* 
be impermanent,
> > and probably cannot be simply conjured out of nothing (or lots 
out of
> > little)--at least not if you want to live on it.
> 
> Oh, wouldn't this be the *best* diet plan ever?
> Mrs Bon's Transitory Meal Replacement System (R)
> Our customers love it! "As a student at Hogwarts, with such 
delicious meals prepared
> three times daily by house elves, I found myself unable to fit into 
my dress robes.
> Then, I found Mrs Bon's System, which I enjoy at breakfast and 
lunch. Then, I have a
> sensible dinner, and enjoy an T-MRS snack in the common room. I've 
lost 10 pounds in
> two weeks, and I'll be going to the Yule Ball with a Quidditch 
Captain! Thank you
> Mrs Bon!"


I THINK it was Robert Heinlein in one of his juveniles who had
his characters ordering food from two sides of the menu. One side 
would taste like food, and you would enjoy it, but it would vanish, 
and there would be no calories. The other would have calories, and 
presumably energy derived from those calories...anyone else remember 
it?

Susan