Date: Wed, 06 Dec 2000 08:26:08 -0700

Author: Jim Krider

Subject: RE: Bernoulli bag

Post:

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Steve,
Thanks for the web site. I notice this site also has a 50 ft long black
windbag that will rise in the air after heated by the sun. You fill the
windbag by running.

Jim

-----Original Message-----
From: Steve Wonnell [mailto:wonnell@pha.jhu.edu]
Sent: Wednesday, December 06, 2000 5:49 AM
To: Tap-L (E-mail)
Cc: Steve Wonnell
Subject: Re: Bernoulli bag



Jim, I learned this from Zig, too. I don't see why one couldn't make
one's own bags, but this demo is commercially available cheaply as the
"Windbag" from for example Educational Innovations
(www.teachersource.com), four for $4.95 + S&H.

Steve W.


On Tue, 5 Dec 2000, Jim Krider wrote:

> I saw a demo once where several garbage bags connected together to form a
> large bag. A student was asked to blow it up. They gather up the end of
> the tube and try to blow it up like a balloon, which is a long process.
The
> instructor opens the mouth of the bag wide and blows into it and air
gushes
> into it inflating the bag which he then seals it off.
>
> I can't find this in a PIRA search. Do you know the name or DCS number
for
> such a demo? Tim tells me that Zig did this demo in San Antonio.
>
> P.S. Some people email me to tell me that my emails appear as an
attachment
> or an icon. When I get my TAP-L email from myself there is no attachment.
> I suspect the combination of Netscape and MAC computers cause this but I
can
> not seem to find a configuration that will stop it. Since attachments
> sometimes contain viruses I would like to correct this. I have a PC and
use
> Microsoft Outlook for email.
>
> Jim
> ******************************************
> Jim Krider James.Krider@asu.edu
> Physics and Astronomy Instructional Resource Team
> Arizona State University Department of Physics and Astronomy
> PO Box 871504, Bldg. PS Rm. F470,Tempe, Arizona 85287-1504
> Phone: 480-965-8086 FAX: 480-965-7954 Web:
> http://www.public.asu.edu/~jkrider/
>
>


***********************************************************************
Steven K. Wonnell
Physics and Astronomy Department E-Mail: wonnell@pha.jhu.edu
Johns Hopkins University Phone: (410) 516-4696
3400 N. Charles Street Fax: (410) 516-7239
Baltimore, MD 21218-2686 Office: 534 Bloomberg (x5468)
***********************************************************************

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charset=3DISO-8859-1">
5.5.2653.12">
RE: Bernoulli bag



Steve,

Thanks for the web site.  I notice this site =
also has a 50 ft long black windbag that will rise in the air after =
heated by the sun.  You fill the windbag by running.



Jim



-----Original Message-----

From: Steve Wonnell [ HREF=3D"mailto:wonnell@pha.jhu.edu">mailto:wonnell@pha.jhu.edu] T>

Sent: Wednesday, December 06, 2000 5:49 AM

To: Tap-L (E-mail)

Cc: Steve Wonnell

Subject: Re: Bernoulli bag







Jim, I learned this from Zig, too.  I don't see =
why one couldn't make


one's own bags, but this demo is commercially =
available cheaply as the


"Windbag" from for example Educational =
Innovations


(www.teachersource.com), four for $4.95 + =
S&H.



Steve W.





On Tue, 5 Dec 2000, Jim Krider wrote:



> I saw a demo once where several garbage bags =
connected together to form a


> large bag.  A student was asked to blow it =
up.  They gather up the end of


> the tube and try to blow it up like a balloon, =
which is a long process.  The


> instructor opens the mouth of the bag wide and =
blows into it and air gushes


> into it inflating the bag which he then seals =
it off.


>

> I can't find this in a PIRA search.  Do =
you know the name or DCS number for


> such a demo?  Tim tells me that Zig did =
this demo in San Antonio.


>

> P.S. Some people email me to tell me that my =
emails appear as an attachment


> or an icon.  When I get my TAP-L email =
from myself there is no attachment.


> I suspect the combination of Netscape and MAC =
computers cause this but I can


> not seem to find a configuration that will stop =
it.  Since attachments


> sometimes contain viruses I would like to =
correct this.  I have a PC and use


> Microsoft Outlook for email.

>

> Jim

> =
******************************************


> Jim =
Krider           =
            =
     James.Krider@asu.edu


> Physics and Astronomy Instructional Resource =
Team


> Arizona State University Department of Physics =
and Astronomy


> PO Box 871504, Bldg. PS Rm. F470,Tempe, Arizona =
85287-1504


> Phone: 480-965-8086   FAX: =
480-965-7954   Web:


> TARGET=3D"_blank">http://www.public.asu.edu/~jkrider/

>

>





SIZE=3D2>***************************************************************=
********


Steven K. Wonnell

Physics and Astronomy =
Department        E-Mail:  =
wonnell@pha.jhu.edu


Johns Hopkins =
University        =
        Phone:  (410) =
516-4696


3400 N. Charles Street  =
        =
        Fax:  (410) =
516-7239


Baltimore, MD  =
21218-2686       =
        Office: 534 Bloomberg =
(x5468)


SIZE=3D2>***************************************************************=
********




=

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