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