PSN-L Email List Message

Subject: Re: popsicle stick seismometer?
From: John or Jan Lahr JohnJan@........
Date: Sun, 11 Feb 2007 15:32:48 -0800


Hi Daisy,

Some of the teachers developed "seimoscopes."  You can read about the 
earliest one developed in China here:
http://inventors.about.com/library/inventors/blseismograph2.htm

Here's another design more like the one you probably have in mind:
http://jclahr.com/science/earth_science/model_seismograph/index.html

It doesn't use popsicle sticks, but it's probably clearer how it works.

Good luck!
John



At 12:14 PM 2/11/2007, you wrote:
>HI WAS NOT QUITE SURE WHAT THE FIRST PICTURE BELOW HAD.  I KNOW IT 
>HAS WOOD AT THE BOTTOM, PEN, PAPER PLATE, AND ARENT SURE WHAT THE 
>OTHER MATERIALS ARE. COULD YOU HELP ME OUT AND TELL WHAT THEY ARE.
>  ALSO THAT IS A SEISMOGRAPH RIGHT?
>O YEAH IF IT IS, DONT SEISMOGRAPHS HAVE A HEAVY PART?
>AND WERE WOULD THE FAXING PAPER GO, OR YOU KNOW THE PAPER WERE IT 
>MARKS EVRYTHING DOWN WITH THE PEN.
>
>
>John or Jan Lahr  wrote:
>Dear Daisy,
>
>It is possible to build a seismometer out of inexpensive and easy to
>work with items such as popsicle sticks and paper cups. Here's a
>picture from a workshop for teachers where they are doing just that:
>http://jclahr.com/science/earth_science/northridge_2007/photos/target0.html
>There are some added pictures here:
>http://www.iris.edu/about/ENO/iows/2_2004b.htm
>This page gives the basic instructions:
>http://www.howstuffworks.com/framed.htm?parent=question142.htm&url=http://cse.ssl.berkeley.edu/lessons/indiv/davis/hs/Seismograph.html
>
>UC Berkeley provides ideas for a slightly more elaborate but still
>quite easy to build seismometer:
>http://cse.ssl.berkeley.edu/lessons/indiv/davis/hs/Seismograph.html
>
>Most important, have some fun with this and try to come up with your
>own design. Send me a picture when your project is done, or post a
>picture on your school web site so that I can see it.
>
>Yours,
>John Lahr
>
>
> >----- Original Message ----- From: "Daisy Torres"
> >To:
> >Sent: Friday, February 09, 2007 4:39 PM
> >Subject: HELLO
> >
> >
> >>HI I ACTUALLY HAVE TO MAKE A SEISMOGRAPH FOR SCHOOL. MY TEACHER
> >>TOLD ME I COULD DO IT OUT OF POPSICLE STICKS (WHICH I WANT TO DO 
> IT OUT OF).
> >> BUT I LOOK AT ALL THIS HEAVY STUFF LIKE WOOD THAT SUPPOSABLY
> >> THATS HOW YOU DO ONE. BUT I DONT HAVE THAT MAATERIAL AND REALLY
> >> DONT WANT TO DO IT OUT OF NONE OF THAT STUFF. AND I DONT KNOW HOW
> >> TO DO ONE. IM VERY CONFUSED.
> >> WHAT CAN I DO IT OUT OFF?
> >> (LIKE POPSICLE STICKS) IF I CAN HOW?
> >> "REMEMBER IM ONLY IN 8TH GRADE.
> >> PLEASE RESPOND AS SOON AS POSSIBLE, PLAESE!!!!
> >
>
>
>#################################/ John C. Lahr
>################################/ Emeritus Seismologist
>###############################/ U.S. Geological Survey
>==========================/ Central Region Geologic Hazards Team
>#############################//#################################
>############################//##################################
>PO Box 548 /###################################
>Corvallis, Oregon 97339 /===============================
>Phone: (541) 758-2699 /####################################
>Cell: (541) 740-4844 /#####################################
>Fax: (413) 658-2699 /######################################
>johnjan@........ /#######################################
>http://jclahr.com/science/
>
>
>
>
>TV dinner still cooling?
>Check out 
>"Tonight's Picks" on Yahoo! TV.


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