Re: [SI-LIST] : Upper limit of interplane capacitance

About this list Date view Thread view Subject view Author view

From: Doug McKean (dmckean@corp.auspex.com)
Date: Fri Jun 16 2000 - 10:52:48 PDT


Sorry for getting way off topic, but microwave
ovens don't heat things by vibrating something
like the water molecule. This is a common
misconception.

Commercial ovens operate at 2.45 GHz. The water
molecule has a vibrational mode up around 22 GHz.
Roughly ten times the frequency of a commercial
microwave oven and way off resonance.

Microwave ovens heat food by dielectric heating.
It just so happens that the Dk of water is anywhere
from 40 to 80. The Dk of something like vegetable
oil or milk is about 3. Thus the source for the
thinking that ovens vibrate water more than
anything else.

Now back to our regularly scheduled program ...

Regards, Doug McKean

**** To unsubscribe from si-list or si-list-digest: send e-mail to
majordomo@silab.eng.sun.com. In the BODY of message put: UNSUBSCRIBE
si-list or UNSUBSCRIBE si-list-digest, for more help, put HELP.
si-list archives are accessible at http://www.qsl.net/wb6tpu
****


About this list Date view Thread view Subject view Author view

This archive was generated by hypermail 2b29 : Wed Nov 22 2000 - 10:50:40 PST