Re: How to explain this?

[Daryl Taylor <Daryl@DARYLSCIENCE.COM>]

In my meager higher physics knowledge database that I call my brain, my 1st
guess is the spoon provided nucleation sites for bubbles to form. This
effect, I believe, has been seen with smooth porcelain cups and water, also.
The smooth porcelain, as explained to me by someone much wiser and, darn it,
younger, has very few sites where bubbles during boiling can form. The
introduction of another surface allows for an "explosion" of bubbling.

Just a guess. Now, I have to re-join Bob in shoveling out of our 20" of
snow.

Daryl Taylor, Fizzix Guy
Williamstown HS, NJ, USA
Engineering Academy, Rowan University
PAEMST '96
856-262-8200
609-330-9571
www.DarylScience.com
This email sent using 100% recycled electrons. Please, don't waste yours!

> -----Original Message-----
> From: Forum for Physics Educators [mailto:PHYS-L@lists.nau.edu]On Behalf
> Of Arnulfo Castellanos Moreno
> Sent: Tuesday, February 18, 2003 10:58 AM
> To: PHYS-L@lists.nau.edu
> Subject: Re: How to explain this?
>
>
> I do not think so.
> Maybe he is talking about a temperature gradient.
>
> Thanks
>
> Arnulfo Castellanos-Moreno
>
>
> ----- Original Message -----
> From: "Bob LaMontagne" <rlamont@POSTOFFICE.PROVIDENCE.EDU>
> To: <PHYS-L@lists.nau.edu>
> Sent: Tuesday, February 18, 2003 8:51 AM
> Subject: Re: How to explain this?
>
>
> > Ludwik Kowalski wrote:
> >
> > >  Why did placing a cold spoon into the hot coffee-
> > > milk produce a sudden boiling-like =93explosion?=94 I have never
> > > seen anything like this.
> > > Ludwik Kowalski
> >
> > Is this another of your Cold Fusion posts? :-)
> >
> > Bob at PC - taking a break from shoveling 2 ft of snow from an 80 ft
> > driveway and wishing for global warming to finally get here.