Yes!
Just spidered!
It's interesting!
Thanks you.

Mauro


At 20.11 08/09/2000 -0400, you wrote:
>Mauro,
>  Just go to   www.ebay.com
>It is an online auction of almost everything you can think of.  At any
>one time, there is about 4,000,000 items for sale!
>You can either buy or sell things.  It is a great way to turn
>dust-catchers into cash.  The fees charged for selling an item are quite
>small.
>Bob Barns
>
>
>mariotti mauro wrote:
>> 
>> Excuse me gang...!
>> 
>> What's Ebay?
>> It's a web site where find seismometers or others interesting things???
>> 
>> Mauro Mariotti
>> 
>> At 10.57 06/09/2000 -0700, you wrote:
>> >The Ranger Seismometer is a seismometer.  If memory serves, the natural
>> >frequency is about 1 Hz, but it might have been adjustable over a small
>> >range.  It can be used as either a vertical or horizontal seismometer.
>> >The big knob is used to adjust the support spring to center the mass in
>> >either position, and the feet are designed to support it in either
>> >position.  The little window is used to see when the mass is centered.
>> >The mass can be clamped for easy transit.  As I recall, it has a
>> >calibration coil.
>> >
>> >It was named after the original "Ranger" moon study program, which
>> >carried three of these in an orthogonal configuration (less the aluminum
>> >case) to the surface of the moon for seismic studies. Once landed on the
>> >moon, little motors centered the units.
>> >
>> >Assuming it still works, this unit would be an excellent, short-period
>> >seismometer for your seismic station.
>> >
>> >Doug
>> >
>> >BOB BARNS wrote:
>> >>
>> >> Hi,
>> >>   Ebay # 430096282 (ends 9/12) is a "Kinemetrics Ranger Seismometer".
>> >> It looks interesting but I don't know what it is.
>> >> Perhaps someone in the group can post some info about it.
>> >> Bob Barns
>> >>
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