Langbahn Team – Weltmeisterschaft

File:VibratingGlassBeam.jpg

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Summary

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Description
English: Made by myself. I melted a borosilicate capillary tube with a blowtorch into the shape (a en:cantilever beam) seen, clamped it in a micrometer (that's what micrometers are for, yes?), and photographed it vibrating. Flash photo + 1/8 second exposure to show vibration and a frozen moment in one picture.

A micrometer was used because it has carbide faces which are four times stiffer than glass (and twice stiffer than steel), makes for an excellent cantilever beam mount. Though I've had problems with poorly clamped beams, this probably makes no difference but it makes me sound smarter.

This photo was selected out of 59 tries.
Date 13 September 2007 (according to Exif data)
Source Transferred from en.wikipedia to Commons.
Author Ben pcc
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Licensing

Public domain This work has been released into the public domain by its author, Ben pcc at English Wikipedia. This applies worldwide.
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Ben pcc grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Original upload log

The original description page was here. All following user names refer to en.wikipedia.
  • 2007-09-13 17:40 Ben pcc 1280×852×8 (104042 bytes) == Summary == Made by self. I melted a borosilicate capillary tube with a blowtorch into the shape (a [[cantilever]] [[Beam theory|beam]]) seen, clamped it in a micrometer (that's what micrometers are for, yes?), and photographed it vibrating. Flash photo
  • 2007-06-16 04:02 Ben pcc 1600×1200×8 (199228 bytes)
  • 2007-06-16 04:00 Ben pcc 1600×1200×8 (144230 bytes)
  • 2007-06-16 00:19 Ben pcc 1280×960×8 (137764 bytes) Made by self. I melted a borosilicate capillary tube with a blowtorch into the shape seen, clamped it in a micrometer (that's what micrometers are for, yes?), and photographed it vibrating. Flash photo + 1/4 second exposure to show vibration and a frozen

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copyrighted, dedicated to the public domain by copyright holder

copyright license

released into the public domain by the copyright holder

inception

13 September 2007

exposure time

0.125 second

f-number

4.2

focal length

61.5 millimetre

ISO speed

100

instance of

photograph

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Date/TimeThumbnailDimensionsUserComment
current20:01, 21 January 2008Thumbnail for version as of 20:01, 21 January 20081,280 × 852 (102 KB)Rocket000{{Information |Description={{en|Made by myself. I melted a borosilicate capillary tube with a blowtorch into the shape (a en:cantilever beam) seen, clamped it in a micrometer (that's what micrometers are for, yes?), and photograph

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