[CoLoCo] [OT] there is one thing about microwaves (was Re: ubuntu and science fairs)

[Paul Schwartz]

Yes. The "how" is the key. Microwaves generally don't heat the vessel, they heat the contents. the microwaves tend to be preferentially absorbed by certain hydrogen bonds which are more prevalent in organic materials [and are obviously quite numerous in water]. For example, the hydrogen bonds in fats seem to absorb more than water, and solid fat is different from liquid fat. It can get very complex. 
A generally ignored question by the purveyors of microwave ovens is how the various hydrogen bonds in the vital nutrients of our foods behave in a microwave. A very interesting question [to me], but I have found it difficult to come up with a good experiment.

 Paul

----- Original Message ----
From: TheZorch <thezorch at gmail.com>
To: Ubuntu Colorado Local Community Team <ubuntu-us-co at lists.ubuntu.com>
Sent: Tuesday, February 5, 2008 8:27:08 AM
Subject: Re: [CoLoCo] [OT] there is one thing about microwaves (was Re: ubuntu and science fairs)





  

Jim Hutchinson wrote:

  My mom had this happen at a restaurant when they reheated her coffee
in a microwave and then she put a spoon in. She didn't get hurt, but
it scared the crap out of her.

-jim

It has to do a lot with "how" microwaves heat things.  Usually when you
put a cup in the microwave it heats the cup and in the turn the water
gets hot, but not all types of cups absorb microwaves.  Since
microwaves tend to heat things from the inside outwards (the reason you
can't brown meat in a microwave without specially coated wrapping paper
or microwave cooking containers) you could pick up a cup that's
lukewarm and the water is actually very hot.



It would be an interesting experiment to see how microwaves affect
certain types of materials and which kinds of foods/containers are best
suited for cooking in the microwave.

-- 
Michael "TheZorch" Haney
thezorch at gmail.com
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